diff options
Diffstat (limited to 'lib/crypto/c_src')
| -rw-r--r-- | lib/crypto/c_src/Makefile.in | 43 | ||||
| -rw-r--r-- | lib/crypto/c_src/crypto.c | 1786 | ||||
| -rw-r--r-- | lib/crypto/c_src/crypto_drv.c | 1799 |
3 files changed, 1813 insertions, 1815 deletions
diff --git a/lib/crypto/c_src/Makefile.in b/lib/crypto/c_src/Makefile.in index 18040a3b26..c2a986c334 100644 --- a/lib/crypto/c_src/Makefile.in +++ b/lib/crypto/c_src/Makefile.in @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1999-2010. All Rights Reserved. +# Copyright Ericsson AB 1999-2011. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -40,7 +40,8 @@ CFLAGS = $(DED_CFLAGS) # From erts/configure SSL_LIBDIR = @SSL_LIBDIR@ SSL_INCLUDE = @SSL_INCLUDE@ - +SSL_CRYPTO_LIBNAME = @SSL_CRYPTO_LIBNAME@ +SSL_SSL_LIBNAME = @SSL_SSL_LIBNAME@ INCLUDES = $(SSL_INCLUDE) $(DED_INCLUDES) @@ -68,13 +69,13 @@ RELSYSDIR = $(RELEASE_PATH)/lib/crypto-$(VSN) # ---------------------------------------------------- # Misc Macros # ---------------------------------------------------- -OBJS = $(OBJDIR)/crypto_drv.o -DRV_MAKEFILE = $(PRIVDIR)/Makefile +OBJS = $(OBJDIR)/crypto$(TYPEMARKER).o +NIF_MAKEFILE = $(PRIVDIR)/Makefile ifeq ($(findstring win32,$(TARGET)), win32) -DYN_DRIVER = $(LIBDIR)/crypto_drv.dll +NIF_LIB = $(LIBDIR)/crypto$(TYPEMARKER).dll else -DYN_DRIVER = $(LIBDIR)/crypto_drv.so +NIF_LIB = $(LIBDIR)/crypto$(TYPEMARKER).so endif ifeq ($(HOST_OS),) @@ -84,17 +85,17 @@ DYNAMIC_CRYPTO_LIB=@SSL_DYNAMIC_ONLY@ ifeq ($(DYNAMIC_CRYPTO_LIB),yes) SSL_DED_LD_RUNTIME_LIBRARY_PATH = @SSL_DED_LD_RUNTIME_LIBRARY_PATH@ -CRYPTO_LINK_LIB=$(SSL_DED_LD_RUNTIME_LIBRARY_PATH) -L$(SSL_LIBDIR) -lcrypto +CRYPTO_LINK_LIB=$(SSL_DED_LD_RUNTIME_LIBRARY_PATH) -L$(SSL_LIBDIR) -l$(SSL_CRYPTO_LIBNAME) -l$(SSL_SSL_LIBNAME) else SSL_DED_LD_RUNTIME_LIBRARY_PATH= -CRYPTO_LINK_LIB=$(SSL_LIBDIR)/libcrypto.a +CRYPTO_LINK_LIB=$(SSL_LIBDIR)/lib$(SSL_CRYPTO_LIBNAME).a endif # ---------------------------------------------------- # Targets # ---------------------------------------------------- -debug opt valgrind: $(OBJDIR) $(LIBDIR) $(DYN_DRIVER) +debug opt valgrind: $(OBJDIR) $(LIBDIR) $(NIF_LIB) $(OBJDIR): -@mkdir -p $(OBJDIR) @@ -102,20 +103,30 @@ $(OBJDIR): $(LIBDIR): -@mkdir -p $(LIBDIR) -$(OBJDIR)/%.o: %.c +$(OBJDIR)/%$(TYPEMARKER).o: %.c $(INSTALL_DIR) $(OBJDIR) $(CC) -c -o $@ $(ALL_CFLAGS) $< -$(LIBDIR)/crypto_drv.so: $(OBJS) +$(LIBDIR)/crypto$(TYPEMARKER).so: $(OBJS) $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ $(LDLIBS) $(CRYPTO_LINK_LIB) -$(LIBDIR)/crypto_drv.dll: $(OBJS) +$(LIBDIR)/crypto$(TYPEMARKER).dll: $(OBJS) $(INSTALL_DIR) $(LIBDIR) - $(LD) $(LDFLAGS) -o $@ $(SSL_DED_LD_RUNTIME_LIBRARY_PATH) -L$(SSL_LIBDIR) $(OBJS) -llibeay32 + $(LD) $(LDFLAGS) -o $@ $(SSL_DED_LD_RUNTIME_LIBRARY_PATH) -L$(SSL_LIBDIR) $(OBJS) -l$(SSL_CRYPTO_LIBNAME) -l$(SSL_SSL_LIBNAME) clean: - rm -f $(DYN_DRIVER) $(OBJS) +ifeq ($(findstring win32,$(TARGET)), win32) + rm -f $(LIBDIR)/crypto.dll + rm -f $(LIBDIR)/crypto.debug.dll +else + rm -f $(LIBDIR)/crypto.so + rm -f $(LIBDIR)/crypto.debug.so + rm -f $(LIBDIR)/crypto.valgrind.so +endif + rm -f $(OBJDIR)/crypto.o + rm -f $(OBJDIR)/crypto.debug.o + rm -f $(OBJDIR)/crypto.valgrind.o rm -f core *~ docs: @@ -128,9 +139,9 @@ include $(ERL_TOP)/make/otp_release_targets.mk release_spec: opt $(INSTALL_DIR) $(RELSYSDIR)/priv/obj $(INSTALL_DIR) $(RELSYSDIR)/priv/lib - $(INSTALL_DATA) $(DRV_MAKEFILE) $(RELSYSDIR)/priv/obj + $(INSTALL_DATA) $(NIF_MAKEFILE) $(RELSYSDIR)/priv/obj $(INSTALL_PROGRAM) $(OBJS) $(RELSYSDIR)/priv/obj - $(INSTALL_PROGRAM) $(DYN_DRIVER) $(RELSYSDIR)/priv/lib + $(INSTALL_PROGRAM) $(NIF_LIB) $(RELSYSDIR)/priv/lib release_docs_spec: diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c new file mode 100644 index 0000000000..c781ccb302 --- /dev/null +++ b/lib/crypto/c_src/crypto.c @@ -0,0 +1,1786 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2010-2011. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* + * Purpose: Dynamically loadable NIF library for cryptography. + * Based on OpenSSL. + */ + +#ifdef __WIN32__ + #include <windows.h> +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include "erl_nif.h" + +#define OPENSSL_THREAD_DEFINES +#include <openssl/opensslconf.h> + +#include <openssl/crypto.h> +#include <openssl/des.h> +/* #include <openssl/idea.h> This is not supported on the openssl OTP requires */ +#include <openssl/dsa.h> +#include <openssl/rsa.h> +#include <openssl/aes.h> +#include <openssl/md5.h> +#include <openssl/md4.h> +#include <openssl/sha.h> +#include <openssl/bn.h> +#include <openssl/objects.h> +#include <openssl/rc4.h> +#include <openssl/rc2.h> +#include <openssl/blowfish.h> +#include <openssl/rand.h> +#include <openssl/evp.h> +#include <openssl/hmac.h> + +#ifdef VALGRIND + # include <valgrind/memcheck.h> + +/* libcrypto mixes supplied buffer contents into its entropy pool, + which makes valgrind complain about the use of uninitialized data. + We use this valgrind "request" to make sure that no such seemingly + undefined data is returned. +*/ + # define ERL_VALGRIND_MAKE_MEM_DEFINED(ptr,size) \ + VALGRIND_MAKE_MEM_DEFINED(ptr,size) + + # define ERL_VALGRIND_ASSERT_MEM_DEFINED(Ptr,Size) \ + do { \ + int __erl_valgrind_mem_defined = VALGRIND_CHECK_MEM_IS_DEFINED((Ptr),(Size)); \ + if (__erl_valgrind_mem_defined != 0) { \ + fprintf(stderr,"\r\n####### VALGRIND_ASSSERT(%p,%ld) failed at %s:%d\r\n", \ + (Ptr),(long)(Size), __FILE__, __LINE__); \ + abort(); \ + } \ + } while (0) + +#else + # define ERL_VALGRIND_MAKE_MEM_DEFINED(ptr,size) + # define ERL_VALGRIND_ASSERT_MEM_DEFINED(ptr,size) +#endif + +#ifdef DEBUG + # define ASSERT(e) \ + ((void) ((e) ? 1 : (fprintf(stderr,"Assert '%s' failed at %s:%d\n",\ + #e, __FILE__, __LINE__), abort(), 0))) +#else + # define ASSERT(e) ((void) 1) +#endif + +#ifdef __GNUC__ + # define INLINE __inline__ +#elif defined(__WIN32__) + # define INLINE __forceinline +#else + # define INLINE +#endif + + +#define get_int32(s) ((((unsigned char*) (s))[0] << 24) | \ + (((unsigned char*) (s))[1] << 16) | \ + (((unsigned char*) (s))[2] << 8) | \ + (((unsigned char*) (s))[3])) + +#define put_int32(s,i) \ +{ (s)[0] = (char)(((i) >> 24) & 0xff);\ + (s)[1] = (char)(((i) >> 16) & 0xff);\ + (s)[2] = (char)(((i) >> 8) & 0xff);\ + (s)[3] = (char)((i) & 0xff);\ +} + +/* NIF interface declarations */ +static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info); +static int reload(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info); +static int upgrade(ErlNifEnv* env, void** priv_data, void** old_priv_data, ERL_NIF_TERM load_info); +static void unload(ErlNifEnv* env, void* priv_data); + +/* The NIFs: */ +static ERL_NIF_TERM info_lib(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md5(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md5_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md5_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md5_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM sha(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM sha_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM sha_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM sha_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md4(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md4_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md4_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md4_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM md5_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM sha_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM hmac_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM hmac_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM des_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM des_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM des_ede3_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM aes_cfb_128_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM aes_ctr_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM aes_ctr_stream_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rand_bytes_1(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM strong_rand_bytes_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rand_bytes_3(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM strong_rand_mpint_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rand_uniform_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM mod_exp_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM dss_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rsa_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM aes_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM exor(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rc4_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rc4_set_key(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rc4_encrypt_with_state(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rc2_40_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM dss_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rsa_public_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM rsa_private_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM dh_generate_parameters_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM dh_check(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM dh_generate_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM dh_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM bf_cfb64_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM bf_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM bf_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM blowfish_ofb64_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); + + +/* openssl callbacks */ +#ifdef OPENSSL_THREADS +static void locking_function(int mode, int n, const char *file, int line); +static unsigned long id_function(void); +static struct CRYPTO_dynlock_value* dyn_create_function(const char *file, + int line); +static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value* ptr, + const char *file, int line); +static void dyn_destroy_function(struct CRYPTO_dynlock_value *ptr, + const char *file, int line); +#endif /* OPENSSL_THREADS */ + +/* helpers */ +static void hmac_md5(unsigned char *key, int klen, + unsigned char *dbuf, int dlen, + unsigned char *hmacbuf); +static void hmac_sha1(unsigned char *key, int klen, + unsigned char *dbuf, int dlen, + unsigned char *hmacbuf); + +static int library_refc = 0; /* number of users of this dynamic library */ + +static ErlNifFunc nif_funcs[] = { + {"info_lib", 0, info_lib}, + {"md5", 1, md5}, + {"md5_init", 0, md5_init}, + {"md5_update", 2, md5_update}, + {"md5_final", 1, md5_final}, + {"sha", 1, sha}, + {"sha_init", 0, sha_init}, + {"sha_update", 2, sha_update}, + {"sha_final", 1, sha_final}, + {"md4", 1, md4}, + {"md4_init", 0, md4_init}, + {"md4_update", 2, md4_update}, + {"md4_final", 1, md4_final}, + {"md5_mac_n", 3, md5_mac_n}, + {"sha_mac_n", 3, sha_mac_n}, + {"hmac_init", 2, hmac_init}, + {"hmac_update", 2, hmac_update}, + {"hmac_final", 1, hmac_final}, + {"hmac_final_n", 2, hmac_final}, + {"des_cbc_crypt", 4, des_cbc_crypt}, + {"des_ecb_crypt", 3, des_ecb_crypt}, + {"des_ede3_cbc_crypt", 6, des_ede3_cbc_crypt}, + {"aes_cfb_128_crypt", 4, aes_cfb_128_crypt}, + {"aes_ctr_encrypt", 3, aes_ctr_encrypt}, + {"aes_ctr_decrypt", 3, aes_ctr_encrypt}, + {"aes_ctr_stream_encrypt", 2, aes_ctr_stream_encrypt}, + {"aes_ctr_stream_decrypt", 2, aes_ctr_stream_encrypt}, + {"rand_bytes", 1, rand_bytes_1}, + {"strong_rand_bytes_nif", 1, strong_rand_bytes_nif}, + {"rand_bytes", 3, rand_bytes_3}, + {"strong_rand_mpint_nif", 3, strong_rand_mpint_nif}, + {"rand_uniform_nif", 2, rand_uniform_nif}, + {"mod_exp_nif", 3, mod_exp_nif}, + {"dss_verify", 4, dss_verify}, + {"rsa_verify", 4, rsa_verify}, + {"aes_cbc_crypt", 4, aes_cbc_crypt}, + {"exor", 2, exor}, + {"rc4_encrypt", 2, rc4_encrypt}, + {"rc4_set_key", 1, rc4_set_key}, + {"rc4_encrypt_with_state", 2, rc4_encrypt_with_state}, + {"rc2_40_cbc_crypt", 4, rc2_40_cbc_crypt}, + {"rsa_sign_nif", 3, rsa_sign_nif}, + {"dss_sign_nif", 3, dss_sign_nif}, + {"rsa_public_crypt", 4, rsa_public_crypt}, + {"rsa_private_crypt", 4, rsa_private_crypt}, + {"dh_generate_parameters_nif", 2, dh_generate_parameters_nif}, + {"dh_check", 1, dh_check}, + {"dh_generate_key_nif", 2, dh_generate_key_nif}, + {"dh_compute_key_nif", 3, dh_compute_key_nif}, + {"bf_cfb64_crypt", 4, bf_cfb64_crypt}, + {"bf_cbc_crypt", 4, bf_cbc_crypt}, + {"bf_ecb_crypt", 3, bf_ecb_crypt}, + {"blowfish_ofb64_encrypt", 3, blowfish_ofb64_encrypt} +}; + +ERL_NIF_INIT(crypto,nif_funcs,load,reload,upgrade,unload) + + +#define MD5_CTX_LEN (sizeof(MD5_CTX)) +#define MD5_LEN 16 +#define MD5_LEN_96 12 +#define MD4_CTX_LEN (sizeof(MD4_CTX)) +#define MD4_LEN 16 +#define SHA_CTX_LEN (sizeof(SHA_CTX)) +#define SHA_LEN 20 +#define SHA_LEN_96 12 +#define HMAC_INT_LEN 64 + +#define HMAC_IPAD 0x36 +#define HMAC_OPAD 0x5c + + +static ErlNifRWLock** lock_vec = NULL; /* Static locks used by openssl */ +static ERL_NIF_TERM atom_true; +static ERL_NIF_TERM atom_false; +static ERL_NIF_TERM atom_sha; +static ERL_NIF_TERM atom_md5; +static ERL_NIF_TERM atom_ripemd160; +static ERL_NIF_TERM atom_error; +static ERL_NIF_TERM atom_rsa_pkcs1_padding; +static ERL_NIF_TERM atom_rsa_pkcs1_oaep_padding; +static ERL_NIF_TERM atom_rsa_no_padding; +static ERL_NIF_TERM atom_undefined; + +static ERL_NIF_TERM atom_ok; +static ERL_NIF_TERM atom_not_prime; +static ERL_NIF_TERM atom_not_strong_prime; +static ERL_NIF_TERM atom_unable_to_check_generator; +static ERL_NIF_TERM atom_not_suitable_generator; +static ERL_NIF_TERM atom_check_failed; +static ERL_NIF_TERM atom_unknown; +static ERL_NIF_TERM atom_none; + + +static int is_ok_load_info(ErlNifEnv* env, ERL_NIF_TERM load_info) +{ + int i; + return enif_get_int(env,load_info,&i) && i == 101; +} +static void* crypto_alloc(size_t size) +{ + return enif_alloc(size); +} +static void* crypto_realloc(void* ptr, size_t size) +{ + return enif_realloc(ptr, size); +} +static void crypto_free(void* ptr) +{ + enif_free(ptr); +} + +static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) +{ + ErlNifSysInfo sys_info; + CRYPTO_set_mem_functions(crypto_alloc, crypto_realloc, crypto_free); + + if (!is_ok_load_info(env, load_info)) { + return -1; + } + +#ifdef OPENSSL_THREADS + enif_system_info(&sys_info, sizeof(sys_info)); + + if (sys_info.scheduler_threads > 1) { + int i; + lock_vec = enif_alloc(CRYPTO_num_locks()*sizeof(*lock_vec)); + if (lock_vec==NULL) return -1; + memset(lock_vec,0,CRYPTO_num_locks()*sizeof(*lock_vec)); + + for (i=CRYPTO_num_locks()-1; i>=0; --i) { + lock_vec[i] = enif_rwlock_create("crypto_stat"); + if (lock_vec[i]==NULL) return -1; + } + CRYPTO_set_locking_callback(locking_function); + CRYPTO_set_id_callback(id_function); + CRYPTO_set_dynlock_create_callback(dyn_create_function); + CRYPTO_set_dynlock_lock_callback(dyn_lock_function); + CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function); + } + /* else no need for locks */ +#endif /* OPENSSL_THREADS */ + + atom_true = enif_make_atom(env,"true"); + atom_false = enif_make_atom(env,"false"); + atom_sha = enif_make_atom(env,"sha"); + atom_md5 = enif_make_atom(env,"md5"); + atom_ripemd160 = enif_make_atom(env,"ripemd160"); + atom_error = enif_make_atom(env,"error"); + atom_rsa_pkcs1_padding = enif_make_atom(env,"rsa_pkcs1_padding"); + atom_rsa_pkcs1_oaep_padding = enif_make_atom(env,"rsa_pkcs1_oaep_padding"); + atom_rsa_no_padding = enif_make_atom(env,"rsa_no_padding"); + atom_undefined = enif_make_atom(env,"undefined"); + atom_ok = enif_make_atom(env,"ok"); + atom_not_prime = enif_make_atom(env,"not_prime"); + atom_not_strong_prime = enif_make_atom(env,"not_strong_prime"); + atom_unable_to_check_generator = enif_make_atom(env,"unable_to_check_generator"); + atom_not_suitable_generator = enif_make_atom(env,"not_suitable_generator"); + atom_check_failed = enif_make_atom(env,"check_failed"); + atom_unknown = enif_make_atom(env,"unknown"); + atom_none = enif_make_atom(env,"none"); + + *priv_data = NULL; + library_refc++; + return 0; +} + +static int reload(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) +{ + if (*priv_data != NULL) { + return -1; /* Don't know how to do that */ + } + if (library_refc == 0) { + /* No support for real library upgrade. The tricky thing is to know + when to (re)set the callbacks for allocation and locking. */ + return -2; + } + if (!is_ok_load_info(env, load_info)) { + return -1; + } + return 0; +} + +static int upgrade(ErlNifEnv* env, void** priv_data, void** old_priv_data, + ERL_NIF_TERM load_info) +{ + int i; + if (*old_priv_data != NULL) { + return -1; /* Don't know how to do that */ + } + i = reload(env,priv_data,load_info); + if (i != 0) { + return i; + } + library_refc++; + return 0; +} + +static void unload(ErlNifEnv* env, void* priv_data) +{ + if (--library_refc <= 0) { + CRYPTO_cleanup_all_ex_data(); + + if (lock_vec != NULL) { + int i; + for (i=CRYPTO_num_locks()-1; i>=0; --i) { + if (lock_vec[i] != NULL) { + enif_rwlock_destroy(lock_vec[i]); + } + } + enif_free(lock_vec); + } + } + /*else NIF library still used by other (new) module code */ +} + +static ERL_NIF_TERM info_lib(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + /* [{<<"OpenSSL">>,9470143,<<"OpenSSL 0.9.8k 25 Mar 2009">>}] */ + + static const char libname[] = "OpenSSL"; + unsigned name_sz = strlen(libname); + const char* ver = SSLeay_version(SSLEAY_VERSION); + unsigned ver_sz = strlen(ver); + ERL_NIF_TERM name_term, ver_term; + + memcpy(enif_make_new_binary(env, name_sz, &name_term), libname, name_sz); + memcpy(enif_make_new_binary(env, ver_sz, &ver_term), ver, ver_sz); + + return enif_make_list1(env, enif_make_tuple3(env, name_term, + enif_make_int(env, SSLeay()), + ver_term)); +} + +static ERL_NIF_TERM md5(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data) */ + ErlNifBinary ibin; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &ibin)) { + return enif_make_badarg(env); + } + MD5((unsigned char *) ibin.data, ibin.size, + enif_make_new_binary(env,MD5_LEN, &ret)); + return ret; +} +static ERL_NIF_TERM md5_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* () */ + ERL_NIF_TERM ret; + MD5_Init((MD5_CTX *) enif_make_new_binary(env, MD5_CTX_LEN, &ret)); + return ret; +} +static ERL_NIF_TERM md5_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context, Data) */ + MD5_CTX* new_ctx; + ErlNifBinary ctx_bin, data_bin; + ERL_NIF_TERM ret; + if (!enif_inspect_binary(env, argv[0], &ctx_bin) + || ctx_bin.size != MD5_CTX_LEN + || !enif_inspect_iolist_as_binary(env, argv[1], &data_bin)) { + return enif_make_badarg(env); + } + new_ctx = (MD5_CTX*) enif_make_new_binary(env,MD5_CTX_LEN, &ret); + memcpy(new_ctx, ctx_bin.data, MD5_CTX_LEN); + MD5_Update(new_ctx, data_bin.data, data_bin.size); + return ret; +} +static ERL_NIF_TERM md5_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context) */ + ErlNifBinary ctx_bin; + MD5_CTX ctx_clone; + ERL_NIF_TERM ret; + if (!enif_inspect_binary(env, argv[0], &ctx_bin) || ctx_bin.size != MD5_CTX_LEN) { + return enif_make_badarg(env); + } + memcpy(&ctx_clone, ctx_bin.data, MD5_CTX_LEN); /* writable */ + MD5_Final(enif_make_new_binary(env, MD5_LEN, &ret), &ctx_clone); + return ret; +} + +static ERL_NIF_TERM sha(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data) */ + ErlNifBinary ibin; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &ibin)) { + return enif_make_badarg(env); + } + SHA1((unsigned char *) ibin.data, ibin.size, + enif_make_new_binary(env,SHA_LEN, &ret)); + return ret; +} +static ERL_NIF_TERM sha_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* () */ + ERL_NIF_TERM ret; + SHA1_Init((SHA_CTX *) enif_make_new_binary(env, SHA_CTX_LEN, &ret)); + return ret; +} +static ERL_NIF_TERM sha_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context, Data) */ + SHA_CTX* new_ctx; + ErlNifBinary ctx_bin, data_bin; + ERL_NIF_TERM ret; + if (!enif_inspect_binary(env, argv[0], &ctx_bin) || ctx_bin.size != SHA_CTX_LEN + || !enif_inspect_iolist_as_binary(env, argv[1], &data_bin)) { + return enif_make_badarg(env); + } + new_ctx = (SHA_CTX*) enif_make_new_binary(env,SHA_CTX_LEN, &ret); + memcpy(new_ctx, ctx_bin.data, SHA_CTX_LEN); + SHA1_Update(new_ctx, data_bin.data, data_bin.size); + return ret; +} +static ERL_NIF_TERM sha_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context) */ + ErlNifBinary ctx_bin; + SHA_CTX ctx_clone; + ERL_NIF_TERM ret; + if (!enif_inspect_binary(env, argv[0], &ctx_bin) || ctx_bin.size != SHA_CTX_LEN) { + return enif_make_badarg(env); + } + memcpy(&ctx_clone, ctx_bin.data, SHA_CTX_LEN); /* writable */ + SHA1_Final(enif_make_new_binary(env, SHA_LEN, &ret), &ctx_clone); + return ret; +} + +static ERL_NIF_TERM md4(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data) */ + ErlNifBinary ibin; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &ibin)) { + return enif_make_badarg(env); + } + MD4((unsigned char *) ibin.data, ibin.size, + enif_make_new_binary(env,MD4_LEN, &ret)); + return ret; +} +static ERL_NIF_TERM md4_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* () */ + ERL_NIF_TERM ret; + MD4_Init((MD4_CTX *) enif_make_new_binary(env, MD4_CTX_LEN, &ret)); + return ret; +} +static ERL_NIF_TERM md4_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context, Data) */ + MD4_CTX* new_ctx; + ErlNifBinary ctx_bin, data_bin; + ERL_NIF_TERM ret; + if (!enif_inspect_binary(env, argv[0], &ctx_bin) || ctx_bin.size != MD4_CTX_LEN + || !enif_inspect_iolist_as_binary(env, argv[1], &data_bin)) { + return enif_make_badarg(env); + } + new_ctx = (MD4_CTX*) enif_make_new_binary(env,MD4_CTX_LEN, &ret); + memcpy(new_ctx, ctx_bin.data, MD4_CTX_LEN); + MD4_Update(new_ctx, data_bin.data, data_bin.size); + return ret; +} +static ERL_NIF_TERM md4_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context) */ + ErlNifBinary ctx_bin; + MD4_CTX ctx_clone; + ERL_NIF_TERM ret; + if (!enif_inspect_binary(env, argv[0], &ctx_bin) || ctx_bin.size != MD4_CTX_LEN) { + return enif_make_badarg(env); + } + memcpy(&ctx_clone, ctx_bin.data, MD4_CTX_LEN); /* writable */ + MD4_Final(enif_make_new_binary(env, MD4_LEN, &ret), &ctx_clone); + return ret; +} + +static ERL_NIF_TERM md5_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Data, MacSize) */ + unsigned char hmacbuf[SHA_DIGEST_LENGTH]; + ErlNifBinary key, data; + unsigned mac_sz; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) + || !enif_inspect_iolist_as_binary(env, argv[1], &data) + || !enif_get_uint(env,argv[2],&mac_sz) || mac_sz > MD5_LEN) { + return enif_make_badarg(env); + } + hmac_md5(key.data, key.size, data.data, data.size, hmacbuf); + memcpy(enif_make_new_binary(env, mac_sz, &ret), hmacbuf, mac_sz); + return ret; +} + +static ERL_NIF_TERM sha_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Data, MacSize) */ + unsigned char hmacbuf[SHA_DIGEST_LENGTH]; + ErlNifBinary key, data; + unsigned mac_sz; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) + || !enif_inspect_iolist_as_binary(env, argv[1], &data) + || !enif_get_uint(env,argv[2],&mac_sz) || mac_sz > SHA_LEN) { + return enif_make_badarg(env); + } + hmac_sha1(key.data, key.size, data.data, data.size, hmacbuf); + memcpy(enif_make_new_binary(env, mac_sz, &ret), + hmacbuf, mac_sz); + return ret; +} + +static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Type, Key) */ + ErlNifBinary key; + ERL_NIF_TERM ret; + unsigned char * ctx_buf; + const EVP_MD *md; + + if (argv[0] == atom_sha) md = EVP_sha1(); + else if (argv[0] == atom_md5) md = EVP_md5(); + else if (argv[0] == atom_ripemd160) md = EVP_ripemd160(); + else goto badarg; + + if (!enif_inspect_iolist_as_binary(env, argv[1], &key)) { + badarg: + return enif_make_badarg(env); + } + + ctx_buf = enif_make_new_binary(env, sizeof(HMAC_CTX), &ret); + HMAC_CTX_init((HMAC_CTX *) ctx_buf); + HMAC_Init((HMAC_CTX *) ctx_buf, key.data, key.size, md); + + return ret; +} + +static ERL_NIF_TERM hmac_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context, Data) */ + ErlNifBinary context, data; + ERL_NIF_TERM ret; + unsigned char * ctx_buf; + + if (!enif_inspect_binary(env, argv[0], &context) + || !enif_inspect_iolist_as_binary(env, argv[1], &data) + || context.size != sizeof(HMAC_CTX)) { + return enif_make_badarg(env); + } + + ctx_buf = enif_make_new_binary(env, sizeof(HMAC_CTX), &ret); + memcpy(ctx_buf, context.data, context.size); + HMAC_Update((HMAC_CTX *)ctx_buf, data.data, data.size); + + return ret; +} + +static ERL_NIF_TERM hmac_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Context) or (Context, HashLen) */ + ErlNifBinary context; + ERL_NIF_TERM ret; + HMAC_CTX ctx; + unsigned char mac_buf[EVP_MAX_MD_SIZE]; + unsigned char * mac_bin; + unsigned int req_len = 0; + unsigned int mac_len; + + if (!enif_inspect_binary(env, argv[0], &context)) { + return enif_make_badarg(env); + } + if (argc == 2 && !enif_get_uint(env, argv[1], &req_len)) { + return enif_make_badarg(env); + } + + if (context.size != sizeof(ctx)) { + return enif_make_badarg(env); + } + memcpy(&ctx, context.data, context.size); + + HMAC_Final(&ctx, mac_buf, &mac_len); + HMAC_CTX_cleanup(&ctx); + + if (argc == 2 && req_len < mac_len) { + // Only truncate to req_len bytes if asked. + mac_len = req_len; + } + mac_bin = enif_make_new_binary(env, mac_len, &ret); + memcpy(mac_bin, mac_buf, mac_len); + + return ret; +} + +static ERL_NIF_TERM des_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Ivec, Text, IsEncrypt) */ + ErlNifBinary key, ivec, text; + DES_key_schedule schedule; + DES_cblock ivec_clone; /* writable copy */ + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) || key.size != 8 + || !enif_inspect_binary(env, argv[1], &ivec) || ivec.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[2], &text) + || text.size % 8 != 0) { + return enif_make_badarg(env); + } + memcpy(&ivec_clone, ivec.data, 8); + DES_set_key((const_DES_cblock*)key.data, &schedule); + DES_ncbc_encrypt(text.data, enif_make_new_binary(env, text.size, &ret), + text.size, &schedule, &ivec_clone, (argv[3] == atom_true)); + return ret; +} + +static ERL_NIF_TERM des_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Text/Cipher, IsEncrypt) */ + ErlNifBinary key, text; + DES_key_schedule schedule; + ERL_NIF_TERM ret; + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) || key.size != 8 || + !enif_inspect_iolist_as_binary(env, argv[1], &text) || text.size != 8) { + return enif_make_badarg(env); + } + DES_set_key((const_DES_cblock*)key.data, &schedule); + DES_ecb_encrypt((const_DES_cblock*)text.data, + (DES_cblock*)enif_make_new_binary(env, 8, &ret), + &schedule, (argv[2] == atom_true)); + return ret; +} + +static ERL_NIF_TERM des_ede3_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key1, Key2, Key3, IVec, Text/Cipher, IsEncrypt) */ + ErlNifBinary key1, key2, key3, ivec, text; + DES_key_schedule schedule1, schedule2, schedule3; + DES_cblock ivec_clone; /* writable copy */ + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key1) || key1.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[1], &key2) || key2.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[2], &key3) || key3.size != 8 + || !enif_inspect_binary(env, argv[3], &ivec) || ivec.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[4], &text) + || text.size % 8 != 0) { + return enif_make_badarg(env); + } + + memcpy(&ivec_clone, ivec.data, 8); + DES_set_key((const_DES_cblock*)key1.data, &schedule1); + DES_set_key((const_DES_cblock*)key2.data, &schedule2); + DES_set_key((const_DES_cblock*)key3.data, &schedule3); + DES_ede3_cbc_encrypt(text.data, enif_make_new_binary(env,text.size,&ret), + text.size, &schedule1, &schedule2, &schedule3, + &ivec_clone, (argv[5] == atom_true)); + return ret; +} + +static ERL_NIF_TERM aes_cfb_128_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, IVec, Data, IsEncrypt) */ + ErlNifBinary key, ivec, text; + AES_KEY aes_key; + unsigned char ivec_clone[16]; /* writable copy */ + int new_ivlen = 0; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) || key.size != 16 + || !enif_inspect_binary(env, argv[1], &ivec) || ivec.size != 16 + || !enif_inspect_iolist_as_binary(env, argv[2], &text) + || text.size % 16 != 0) { + return enif_make_badarg(env); + } + + memcpy(ivec_clone, ivec.data, 16); + AES_set_encrypt_key(key.data, 128, &aes_key); + AES_cfb128_encrypt((unsigned char *) text.data, + enif_make_new_binary(env, text.size, &ret), + text.size, &aes_key, ivec_clone, &new_ivlen, + (argv[3] == atom_true)); + return ret; +} + +/* Common for both encrypt and decrypt +*/ +static ERL_NIF_TERM aes_ctr_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, IVec, Data) */ + ErlNifBinary key, ivec, text; + AES_KEY aes_key; + unsigned char ivec_clone[16]; /* writable copy */ + unsigned char ecount_buf[AES_BLOCK_SIZE]; + unsigned int num = 0; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) + || AES_set_encrypt_key(key.data, key.size*8, &aes_key) != 0 + || !enif_inspect_binary(env, argv[1], &ivec) || ivec.size != 16 + || !enif_inspect_iolist_as_binary(env, argv[2], &text)) { + return enif_make_badarg(env); + } + memcpy(ivec_clone, ivec.data, 16); + memset(ecount_buf, 0, sizeof(ecount_buf)); + AES_ctr128_encrypt((unsigned char *) text.data, + enif_make_new_binary(env, text.size, &ret), + text.size, &aes_key, ivec_clone, ecount_buf, &num); + + /* To do an incremental {en|de}cryption, the state to to keep between calls + must include ivec_clone, ecount_buf and num. */ + return ret; +} + +/* Initializes state for ctr streaming (de)encryption +*/ +static ERL_NIF_TERM aes_ctr_stream_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* ({Key, IVec, ECount, Num}, Data) */ + ErlNifBinary key_bin, ivec_bin, text_bin, ecount_bin; + AES_KEY aes_key; + unsigned int num; + ERL_NIF_TERM ret, num2_term, cipher_term, ivec2_term, ecount2_term, new_state_term; + int state_arity; + const ERL_NIF_TERM *state_term; + unsigned char * ivec2_buf; + unsigned char * ecount2_buf; + + if (!enif_get_tuple(env, argv[0], &state_arity, &state_term) + || state_arity != 4 + || !enif_inspect_iolist_as_binary(env, state_term[0], &key_bin) + || AES_set_encrypt_key(key_bin.data, key_bin.size*8, &aes_key) != 0 + || !enif_inspect_binary(env, state_term[1], &ivec_bin) || ivec_bin.size != 16 + || !enif_inspect_binary(env, state_term[2], &ecount_bin) || ecount_bin.size != AES_BLOCK_SIZE + || !enif_get_uint(env, state_term[3], &num) + || !enif_inspect_iolist_as_binary(env, argv[1], &text_bin)) { + return enif_make_badarg(env); + } + + ivec2_buf = enif_make_new_binary(env, ivec_bin.size, &ivec2_term); + ecount2_buf = enif_make_new_binary(env, ecount_bin.size, &ecount2_term); + + memcpy(ivec2_buf, ivec_bin.data, 16); + memcpy(ecount2_buf, ecount_bin.data, ecount_bin.size); + + AES_ctr128_encrypt((unsigned char *) text_bin.data, + enif_make_new_binary(env, text_bin.size, &cipher_term), + text_bin.size, &aes_key, ivec2_buf, ecount2_buf, &num); + + num2_term = enif_make_uint(env, num); + new_state_term = enif_make_tuple4(env, state_term[0], ivec2_term, ecount2_term, num2_term); + ret = enif_make_tuple2(env, new_state_term, cipher_term); + return ret; +} + +static ERL_NIF_TERM rand_bytes_1(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Bytes) */ + unsigned bytes; + unsigned char* data; + ERL_NIF_TERM ret; + if (!enif_get_uint(env, argv[0], &bytes)) { + return enif_make_badarg(env); + } + data = enif_make_new_binary(env, bytes, &ret); + RAND_pseudo_bytes(data, bytes); + ERL_VALGRIND_MAKE_MEM_DEFINED(data, bytes); + return ret; +} +static ERL_NIF_TERM strong_rand_bytes_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Bytes) */ + unsigned bytes; + unsigned char* data; + ERL_NIF_TERM ret; + if (!enif_get_uint(env, argv[0], &bytes)) { + return enif_make_badarg(env); + } + data = enif_make_new_binary(env, bytes, &ret); + if ( RAND_bytes(data, bytes) != 1) { + return atom_false; + } + ERL_VALGRIND_MAKE_MEM_DEFINED(data, bytes); + return ret; +} + +static ERL_NIF_TERM rand_bytes_3(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Bytes, TopMask, BottomMask) */ + unsigned bytes; + unsigned char* data; + unsigned top_mask, bot_mask; + ERL_NIF_TERM ret; + if (!enif_get_uint(env, argv[0], &bytes) + || !enif_get_uint(env, argv[1], &top_mask) + || !enif_get_uint(env, argv[2], &bot_mask)) { + return enif_make_badarg(env); + } + data = enif_make_new_binary(env, bytes, &ret); + RAND_pseudo_bytes(data, bytes); + ERL_VALGRIND_MAKE_MEM_DEFINED(data, bytes); + if (bytes > 0) { + data[bytes-1] |= top_mask; + data[0] |= bot_mask; + } + return ret; +} +static ERL_NIF_TERM strong_rand_mpint_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Bytes, TopMask, BottomMask) */ + unsigned bits; + BIGNUM *bn_rand; + int top, bottom; + unsigned char* data; + unsigned dlen; + ERL_NIF_TERM ret; + if (!enif_get_uint(env, argv[0], &bits) + || !enif_get_int(env, argv[1], &top) + || !enif_get_int(env, argv[2], &bottom)) { + return enif_make_badarg(env); + } + if (! (top == -1 || top == 0 || top == 1) ) { + return enif_make_badarg(env); + } + if (! (bottom == 0 || bottom == 1) ) { + return enif_make_badarg(env); + } + + bn_rand = BN_new(); + if (! bn_rand ) { + return enif_make_badarg(env); + } + + /* Get a (bits) bit random number */ + if (!BN_rand(bn_rand, bits, top, bottom)) { + ret = atom_false; + } + else { + /* Copy the bignum into an erlang mpint binary. */ + dlen = BN_num_bytes(bn_rand); + data = enif_make_new_binary(env, dlen+4, &ret); + put_int32(data, dlen); + BN_bn2bin(bn_rand, data+4); + ERL_VALGRIND_MAKE_MEM_DEFINED(data+4, dlen); + } + BN_free(bn_rand); + + return ret; +} + +static int get_bn_from_mpint(ErlNifEnv* env, ERL_NIF_TERM term, BIGNUM** bnp) +{ + ErlNifBinary bin; + int sz; + if (!enif_inspect_binary(env,term,&bin)) { + return 0; + } + ERL_VALGRIND_ASSERT_MEM_DEFINED(bin.data, bin.size); + sz = bin.size - 4; + if (sz < 0 || get_int32(bin.data) != sz) { + return 0; + } + *bnp = BN_bin2bn(bin.data+4, sz, NULL); + return 1; +} + +static ERL_NIF_TERM rand_uniform_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Lo,Hi) */ + BIGNUM *bn_from = NULL, *bn_to, *bn_rand; + unsigned char* data; + unsigned dlen; + ERL_NIF_TERM ret; + if (!get_bn_from_mpint(env, argv[0], &bn_from) + || !get_bn_from_mpint(env, argv[1], &bn_rand)) { + if (bn_from) BN_free(bn_from); + return enif_make_badarg(env); + } + + bn_to = BN_new(); + BN_sub(bn_to, bn_rand, bn_from); + BN_pseudo_rand_range(bn_rand, bn_to); + BN_add(bn_rand, bn_rand, bn_from); + dlen = BN_num_bytes(bn_rand); + data = enif_make_new_binary(env, dlen+4, &ret); + put_int32(data, dlen); + BN_bn2bin(bn_rand, data+4); + ERL_VALGRIND_MAKE_MEM_DEFINED(data+4, dlen); + BN_free(bn_rand); + BN_free(bn_from); + BN_free(bn_to); + return ret; +} + +static ERL_NIF_TERM mod_exp_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Base,Exponent,Modulo) */ + BIGNUM *bn_base=NULL, *bn_exponent=NULL, *bn_modulo, *bn_result; + BN_CTX *bn_ctx; + unsigned char* ptr; + unsigned dlen; + ERL_NIF_TERM ret; + + if (!get_bn_from_mpint(env, argv[0], &bn_base) + || !get_bn_from_mpint(env, argv[1], &bn_exponent) + || !get_bn_from_mpint(env, argv[2], &bn_modulo)) { + + if (bn_base) BN_free(bn_base); + if (bn_exponent) BN_free(bn_exponent); + return enif_make_badarg(env); + } + bn_result = BN_new(); + bn_ctx = BN_CTX_new(); + BN_mod_exp(bn_result, bn_base, bn_exponent, bn_modulo, bn_ctx); + dlen = BN_num_bytes(bn_result); + ptr = enif_make_new_binary(env, dlen+4, &ret); + put_int32(ptr, dlen); + BN_bn2bin(bn_result, ptr+4); + BN_free(bn_result); + BN_CTX_free(bn_ctx); + BN_free(bn_modulo); + BN_free(bn_exponent); + BN_free(bn_base); + return ret; +} + +static int inspect_mpint(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifBinary* bin) +{ + return enif_inspect_binary(env, term, bin) && + bin->size >= 4 && get_int32(bin->data) == bin->size-4; +} + +static ERL_NIF_TERM dss_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (DigestType,Data,Signature,Key=[P, Q, G, Y]) */ + ErlNifBinary data_bin, sign_bin; + BIGNUM *dsa_p = NULL, *dsa_q = NULL, *dsa_g = NULL, *dsa_y = NULL; + unsigned char hmacbuf[SHA_DIGEST_LENGTH]; + ERL_NIF_TERM head, tail; + DSA *dsa; + int i; + + if (!inspect_mpint(env, argv[2], &sign_bin) + || !enif_get_list_cell(env, argv[3], &head, &tail) + || !get_bn_from_mpint(env, head, &dsa_p) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dsa_q) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dsa_g) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dsa_y) + || !enif_is_empty_list(env,tail)) { + badarg: + if (dsa_p) BN_free(dsa_p); + if (dsa_q) BN_free(dsa_q); + if (dsa_g) BN_free(dsa_g); + if (dsa_y) BN_free(dsa_y); + return enif_make_badarg(env); + } + if (argv[0] == atom_sha && inspect_mpint(env, argv[1], &data_bin)) { + SHA1(data_bin.data+4, data_bin.size-4, hmacbuf); + } + else if (argv[0] == atom_none && enif_inspect_binary(env, argv[1], &data_bin) + && data_bin.size == SHA_DIGEST_LENGTH) { + memcpy(hmacbuf, data_bin.data, SHA_DIGEST_LENGTH); + } + else { + goto badarg; + } + + dsa = DSA_new(); + dsa->p = dsa_p; + dsa->q = dsa_q; + dsa->g = dsa_g; + dsa->priv_key = NULL; + dsa->pub_key = dsa_y; + i = DSA_verify(0, hmacbuf, SHA_DIGEST_LENGTH, + sign_bin.data+4, sign_bin.size-4, dsa); + DSA_free(dsa); + return(i > 0) ? atom_true : atom_false; +} + +static ERL_NIF_TERM rsa_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Type, Data, Signature, Key=[E,N]) */ + ErlNifBinary data_bin, sign_bin; + unsigned char hmacbuf[SHA_DIGEST_LENGTH]; + ERL_NIF_TERM head, tail, ret; + int i, is_sha; + RSA* rsa = RSA_new(); + + if (argv[0] == atom_sha) is_sha = 1; + else if (argv[0] == atom_md5) is_sha = 0; + else goto badarg; + + if (!inspect_mpint(env, argv[1], &data_bin) + || !inspect_mpint(env, argv[2], &sign_bin) + || !enif_get_list_cell(env, argv[3], &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->e) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->n) + || !enif_is_empty_list(env, tail)) { + badarg: + ret = enif_make_badarg(env); + } + else { + if (is_sha) { + SHA1(data_bin.data+4, data_bin.size-4, hmacbuf); + i = RSA_verify(NID_sha1, hmacbuf, SHA_DIGEST_LENGTH, + sign_bin.data+4, sign_bin.size-4, rsa); + } + else { + MD5(data_bin.data+4, data_bin.size-4, hmacbuf); + i = RSA_verify(NID_md5, hmacbuf, MD5_DIGEST_LENGTH, + sign_bin.data+4, sign_bin.size-4, rsa); + } + ret = (i==1 ? atom_true : atom_false); + } + RSA_free(rsa); + return ret; +} + +static ERL_NIF_TERM aes_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, IVec, Data, IsEncrypt) */ + ErlNifBinary key_bin, ivec_bin, data_bin; + AES_KEY aes_key; + unsigned char ivec[16]; + int i; + unsigned char* ret_ptr; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin) + || (key_bin.size != 16 && key_bin.size != 32) + || !enif_inspect_binary(env, argv[1], &ivec_bin) + || ivec_bin.size != 16 + || !enif_inspect_iolist_as_binary(env, argv[2], &data_bin) + || data_bin.size % 16 != 0) { + + return enif_make_badarg(env); + } + + if (argv[3] == atom_true) { + i = AES_ENCRYPT; + AES_set_encrypt_key(key_bin.data, key_bin.size*8, &aes_key); + } + else { + i = AES_DECRYPT; + AES_set_decrypt_key(key_bin.data, key_bin.size*8, &aes_key); + } + + ret_ptr = enif_make_new_binary(env, data_bin.size, &ret); + memcpy(ivec, ivec_bin.data, 16); /* writable copy */ + AES_cbc_encrypt(data_bin.data, ret_ptr, data_bin.size, &aes_key, ivec, i); + return ret; +} + +static ERL_NIF_TERM exor(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data1, Data2) */ + ErlNifBinary d1, d2; + unsigned char* ret_ptr; + int i; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env,argv[0], &d1) + || !enif_inspect_iolist_as_binary(env,argv[1], &d2) + || d1.size != d2.size) { + return enif_make_badarg(env); + } + ret_ptr = enif_make_new_binary(env, d1.size, &ret); + + for (i=0; i<d1.size; i++) { + ret_ptr[i] = d1.data[i] ^ d2.data[i]; + } + return ret; +} + +static ERL_NIF_TERM rc4_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Data) */ + ErlNifBinary key, data; + RC4_KEY rc4_key; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env,argv[0], &key) + || !enif_inspect_iolist_as_binary(env,argv[1], &data)) { + return enif_make_badarg(env); + } + RC4_set_key(&rc4_key, key.size, key.data); + RC4(&rc4_key, data.size, data.data, + enif_make_new_binary(env, data.size, &ret)); + return ret; +} + +static ERL_NIF_TERM rc4_set_key(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key) */ + ErlNifBinary key; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env,argv[0], &key)) { + return enif_make_badarg(env); + } + RC4_set_key((RC4_KEY*)enif_make_new_binary(env, sizeof(RC4_KEY), &ret), + key.size, key.data); + return ret; +} + +static ERL_NIF_TERM rc4_encrypt_with_state(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (State, Data) */ + + ErlNifBinary state, data; + RC4_KEY* rc4_key; + ERL_NIF_TERM new_state, new_data; + + if (!enif_inspect_iolist_as_binary(env,argv[0], &state) + || state.size != sizeof(RC4_KEY) + || !enif_inspect_iolist_as_binary(env,argv[1], &data)) { + return enif_make_badarg(env); + } + rc4_key = (RC4_KEY*)enif_make_new_binary(env, sizeof(RC4_KEY), &new_state); + memcpy(rc4_key, state.data, sizeof(RC4_KEY)); + RC4(rc4_key, data.size, data.data, + enif_make_new_binary(env, data.size, &new_data)); + + return enif_make_tuple2(env,new_state,new_data); +} + +static ERL_NIF_TERM rc2_40_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key,IVec,Data,IsEncrypt) */ + ErlNifBinary key_bin, ivec_bin, data_bin; + RC2_KEY rc2_key; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin) + || key_bin.size != 5 + || !enif_inspect_binary(env, argv[1], &ivec_bin) + || ivec_bin.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[2], &data_bin)) { + + return enif_make_badarg(env); + } + + RC2_set_key(&rc2_key, 5, key_bin.data, 40); + RC2_cbc_encrypt(data_bin.data, + enif_make_new_binary(env, data_bin.size, &ret), + data_bin.size, &rc2_key, + ivec_bin.data, + (argv[3] == atom_true)); + + return ret; +} + +static ERL_NIF_TERM rsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Type,Data,Key=[E,N,D]) */ + ErlNifBinary data_bin, ret_bin; + ERL_NIF_TERM head, tail; + unsigned char hmacbuf[SHA_DIGEST_LENGTH]; + unsigned rsa_s_len; + RSA *rsa = RSA_new(); + int i, is_sha; + + if (argv[0] == atom_sha) is_sha = 1; + else if (argv[0] == atom_md5) is_sha = 0; + else goto badarg; + + if (!inspect_mpint(env,argv[1],&data_bin) + || !enif_get_list_cell(env, argv[2], &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->e) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->n) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->d) + || !enif_is_empty_list(env,tail)) { + badarg: + RSA_free(rsa); + return enif_make_badarg(env); + } + enif_alloc_binary(RSA_size(rsa), &ret_bin); + if (is_sha) { + SHA1(data_bin.data+4, data_bin.size-4, hmacbuf); + ERL_VALGRIND_ASSERT_MEM_DEFINED(hmacbuf, SHA_DIGEST_LENGTH); + i = RSA_sign(NID_sha1, hmacbuf, SHA_DIGEST_LENGTH, + ret_bin.data, &rsa_s_len, rsa); + } + else { + MD5(data_bin.data+4, data_bin.size-4, hmacbuf); + ERL_VALGRIND_ASSERT_MEM_DEFINED(hmacbuf, MD5_DIGEST_LENGTH); + i = RSA_sign(NID_md5, hmacbuf,MD5_DIGEST_LENGTH, + ret_bin.data, &rsa_s_len, rsa); + } + RSA_free(rsa); + if (i) { + ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, rsa_s_len); + if (rsa_s_len != data_bin.size) { + enif_realloc_binary(&ret_bin, rsa_s_len); + ERL_VALGRIND_ASSERT_MEM_DEFINED(ret_bin.data, rsa_s_len); + } + return enif_make_binary(env,&ret_bin); + } + else { + enif_release_binary(&ret_bin); + return atom_error; + } +} + +static ERL_NIF_TERM dss_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (DigesType, Data, Key=[P,Q,G,PrivKey]) */ + ErlNifBinary data_bin, ret_bin; + ERL_NIF_TERM head, tail; + unsigned char hmacbuf[SHA_DIGEST_LENGTH]; + unsigned int dsa_s_len; + DSA* dsa = DSA_new(); + int i; + + dsa->pub_key = NULL; + if (!enif_get_list_cell(env, argv[2], &head, &tail) + || !get_bn_from_mpint(env, head, &dsa->p) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dsa->q) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dsa->g) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dsa->priv_key) + || !enif_is_empty_list(env,tail)) { + goto badarg; + } + if (argv[0] == atom_sha && inspect_mpint(env, argv[1], &data_bin)) { + SHA1(data_bin.data+4, data_bin.size-4, hmacbuf); + } + else if (argv[0] == atom_none && enif_inspect_binary(env,argv[1],&data_bin) + && data_bin.size == SHA_DIGEST_LENGTH) { + memcpy(hmacbuf, data_bin.data, SHA_DIGEST_LENGTH); + } + else { + badarg: + DSA_free(dsa); + return enif_make_badarg(env); + } + + enif_alloc_binary(DSA_size(dsa), &ret_bin); + i = DSA_sign(NID_sha1, hmacbuf, SHA_DIGEST_LENGTH, + ret_bin.data, &dsa_s_len, dsa); + DSA_free(dsa); + if (i) { + if (dsa_s_len != ret_bin.size) { + enif_realloc_binary(&ret_bin, dsa_s_len); + } + return enif_make_binary(env, &ret_bin); + } + else { + return atom_error; + } +} + +static int rsa_pad(ERL_NIF_TERM term, int* padding) +{ + if (term == atom_rsa_pkcs1_padding) { + *padding = RSA_PKCS1_PADDING; + } + else if (term == atom_rsa_pkcs1_oaep_padding) { + *padding = RSA_PKCS1_OAEP_PADDING; + } + else if (term == atom_rsa_no_padding) { + *padding = RSA_NO_PADDING; + } + else { + return 0; + } + return 1; +} + +static ERL_NIF_TERM rsa_public_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data, PublKey=[E,N], Padding, IsEncrypt) */ + ErlNifBinary data_bin, ret_bin; + ERL_NIF_TERM head, tail; + int padding, i; + RSA* rsa = RSA_new(); + + if (!enif_inspect_binary(env, argv[0], &data_bin) + || !enif_get_list_cell(env, argv[1], &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->e) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->n) + || !enif_is_empty_list(env,tail) + || !rsa_pad(argv[2], &padding)) { + + RSA_free(rsa); + return enif_make_badarg(env); + } + + enif_alloc_binary(RSA_size(rsa), &ret_bin); + + if (argv[3] == atom_true) { + ERL_VALGRIND_ASSERT_MEM_DEFINED(data_bin.data,data_bin.size); + i = RSA_public_encrypt(data_bin.size, data_bin.data, + ret_bin.data, rsa, padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i); + } + } + else { + i = RSA_public_decrypt(data_bin.size, data_bin.data, + ret_bin.data, rsa, padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i); + enif_realloc_binary(&ret_bin, i); + } + } + RSA_free(rsa); + if (i > 0) { + return enif_make_binary(env,&ret_bin); + } + else { + enif_release_binary(&ret_bin); + return atom_error; + } +} + +static ERL_NIF_TERM rsa_private_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data, PublKey=[E,N,D], Padding, IsEncrypt) */ + ErlNifBinary data_bin, ret_bin; + ERL_NIF_TERM head, tail; + int padding, i; + RSA* rsa = RSA_new(); + + if (!enif_inspect_binary(env, argv[0], &data_bin) + || !enif_get_list_cell(env, argv[1], &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->e) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->n) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &rsa->d) + || !enif_is_empty_list(env,tail) + || !rsa_pad(argv[2], &padding)) { + + RSA_free(rsa); + return enif_make_badarg(env); + } + + enif_alloc_binary(RSA_size(rsa), &ret_bin); + + if (argv[3] == atom_true) { + ERL_VALGRIND_ASSERT_MEM_DEFINED(data_bin.data,data_bin.size); + i = RSA_private_encrypt(data_bin.size, data_bin.data, + ret_bin.data, rsa, padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i); + } + } + else { + i = RSA_private_decrypt(data_bin.size, data_bin.data, + ret_bin.data, rsa, padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i); + enif_realloc_binary(&ret_bin, i); + } + } + RSA_free(rsa); + if (i > 0) { + return enif_make_binary(env,&ret_bin); + } + else { + enif_release_binary(&ret_bin); + return atom_error; + } +} + +static ERL_NIF_TERM dh_generate_parameters_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (PrimeLen, Generator) */ + int prime_len, generator; + DH* dh_params; + int p_len, g_len; + unsigned char *p_ptr, *g_ptr; + ERL_NIF_TERM ret_p, ret_g; + + if (!enif_get_int(env, argv[0], &prime_len) + || !enif_get_int(env, argv[1], &generator)) { + + return enif_make_badarg(env); + } + dh_params = DH_generate_parameters(prime_len, generator, NULL, NULL); + if (dh_params == NULL) { + return atom_error; + } + p_len = BN_num_bytes(dh_params->p); + g_len = BN_num_bytes(dh_params->g); + p_ptr = enif_make_new_binary(env, p_len+4, &ret_p); + g_ptr = enif_make_new_binary(env, g_len+4, &ret_g); + put_int32(p_ptr, p_len); + put_int32(g_ptr, g_len); + BN_bn2bin(dh_params->p, p_ptr+4); + BN_bn2bin(dh_params->g, g_ptr+4); + ERL_VALGRIND_MAKE_MEM_DEFINED(p_ptr+4, p_len); + ERL_VALGRIND_MAKE_MEM_DEFINED(g_ptr+4, g_len); + DH_free(dh_params); + return enif_make_list2(env, ret_p, ret_g); +} + +static ERL_NIF_TERM dh_check(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* ([PrimeLen, Generator]) */ + DH* dh_params = DH_new(); + int i; + ERL_NIF_TERM ret, head, tail; + + if (!enif_get_list_cell(env, argv[0], &head, &tail) + || !get_bn_from_mpint(env, head, &dh_params->p) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dh_params->g) + || !enif_is_empty_list(env,tail)) { + + DH_free(dh_params); + return enif_make_badarg(env); + } + if (DH_check(dh_params, &i)) { + if (i == 0) ret = atom_ok; + else if (i & DH_CHECK_P_NOT_PRIME) ret = atom_not_prime; + else if (i & DH_CHECK_P_NOT_SAFE_PRIME) ret = atom_not_strong_prime; + else if (i & DH_UNABLE_TO_CHECK_GENERATOR) ret = atom_unable_to_check_generator; + else if (i & DH_NOT_SUITABLE_GENERATOR) ret = atom_not_suitable_generator; + else ret = enif_make_tuple2(env, atom_unknown, enif_make_uint(env, i)); + } + else { /* Check Failed */ + ret = enif_make_tuple2(env, atom_error, atom_check_failed); + } + DH_free(dh_params); + return ret; +} + +static ERL_NIF_TERM dh_generate_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (PrivKey, DHParams=[P,G]) */ + DH* dh_params = DH_new(); + int pub_len, prv_len; + unsigned char *pub_ptr, *prv_ptr; + ERL_NIF_TERM ret, ret_pub, ret_prv, head, tail; + + if (!(get_bn_from_mpint(env, argv[0], &dh_params->priv_key) + || argv[0] == atom_undefined) + || !enif_get_list_cell(env, argv[1], &head, &tail) + || !get_bn_from_mpint(env, head, &dh_params->p) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dh_params->g) + || !enif_is_empty_list(env, tail)) { + DH_free(dh_params); + return enif_make_badarg(env); + } + + if (DH_generate_key(dh_params)) { + pub_len = BN_num_bytes(dh_params->pub_key); + prv_len = BN_num_bytes(dh_params->priv_key); + pub_ptr = enif_make_new_binary(env, pub_len+4, &ret_pub); + prv_ptr = enif_make_new_binary(env, prv_len+4, &ret_prv); + put_int32(pub_ptr, pub_len); + put_int32(prv_ptr, prv_len); + BN_bn2bin(dh_params->pub_key, pub_ptr+4); + BN_bn2bin(dh_params->priv_key, prv_ptr+4); + ERL_VALGRIND_MAKE_MEM_DEFINED(pub_ptr+4, pub_len); + ERL_VALGRIND_MAKE_MEM_DEFINED(prv_ptr+4, prv_len); + ret = enif_make_tuple2(env, ret_pub, ret_prv); + } + else { + ret = atom_error; + } + DH_free(dh_params); + return ret; +} + +static ERL_NIF_TERM dh_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (OthersPublicKey, MyPrivateKey, DHParams=[P,G]) */ + DH* dh_params = DH_new(); + BIGNUM* pubkey = NULL; + int i; + ErlNifBinary ret_bin; + ERL_NIF_TERM ret, head, tail; + + if (!get_bn_from_mpint(env, argv[0], &pubkey) + || !get_bn_from_mpint(env, argv[1], &dh_params->priv_key) + || !enif_get_list_cell(env, argv[2], &head, &tail) + || !get_bn_from_mpint(env, head, &dh_params->p) + || !enif_get_list_cell(env, tail, &head, &tail) + || !get_bn_from_mpint(env, head, &dh_params->g) + || !enif_is_empty_list(env, tail)) { + + ret = enif_make_badarg(env); + } + else { + enif_alloc_binary(DH_size(dh_params), &ret_bin); + i = DH_compute_key(ret_bin.data, pubkey, dh_params); + if (i > 0) { + if (i != ret_bin.size) { + enif_realloc_binary(&ret_bin, i); + } + ret = enif_make_binary(env, &ret_bin); + } + else { + ret = atom_error; + } + } + if (pubkey) BN_free(pubkey); + DH_free(dh_params); + return ret; +} + +static ERL_NIF_TERM bf_cfb64_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Ivec, Data, IsEncrypt) */ + ErlNifBinary key_bin, ivec_bin, data_bin; + BF_KEY bf_key; /* blowfish key 8 */ + unsigned char bf_tkey[8]; /* blowfish ivec */ + int bf_n = 0; /* blowfish ivec pos */ + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin) + || !enif_inspect_binary(env, argv[1], &ivec_bin) + || ivec_bin.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[2], &data_bin)) { + return enif_make_badarg(env); + } + + BF_set_key(&bf_key, key_bin.size, key_bin.data); + memcpy(bf_tkey, ivec_bin.data, 8); + BF_cfb64_encrypt(data_bin.data, enif_make_new_binary(env,data_bin.size,&ret), + data_bin.size, &bf_key, bf_tkey, &bf_n, + (argv[3] == atom_true ? BF_ENCRYPT : BF_DECRYPT)); + return ret; +} + +static ERL_NIF_TERM bf_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Ivec, Data, IsEncrypt) */ + ErlNifBinary key_bin, ivec_bin, data_bin; + BF_KEY bf_key; /* blowfish key 8 */ + unsigned char bf_tkey[8]; /* blowfish ivec */ + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin) + || !enif_inspect_binary(env, argv[1], &ivec_bin) + || ivec_bin.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[2], &data_bin) + || data_bin.size % 8 != 0) { + return enif_make_badarg(env); + } + + BF_set_key(&bf_key, key_bin.size, key_bin.data); + memcpy(bf_tkey, ivec_bin.data, 8); + BF_cbc_encrypt(data_bin.data, enif_make_new_binary(env,data_bin.size,&ret), + data_bin.size, &bf_key, bf_tkey, + (argv[3] == atom_true ? BF_ENCRYPT : BF_DECRYPT)); + return ret; +} + +static ERL_NIF_TERM bf_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, Data, IsEncrypt) */ + ErlNifBinary key_bin, data_bin; + BF_KEY bf_key; /* blowfish key 8 */ + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin) + || !enif_inspect_iolist_as_binary(env, argv[1], &data_bin) + || data_bin.size < 8) { + return enif_make_badarg(env); + } + BF_set_key(&bf_key, key_bin.size, key_bin.data); + BF_ecb_encrypt(data_bin.data, enif_make_new_binary(env,data_bin.size,&ret), + &bf_key, (argv[2] == atom_true ? BF_ENCRYPT : BF_DECRYPT)); + return ret; +} + +static ERL_NIF_TERM blowfish_ofb64_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, IVec, Data) */ + ErlNifBinary key_bin, ivec_bin, data_bin; + BF_KEY bf_key; /* blowfish key 8 */ + unsigned char bf_tkey[8]; /* blowfish ivec */ + int bf_n = 0; /* blowfish ivec pos */ + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin) + || !enif_inspect_binary(env, argv[1], &ivec_bin) + || ivec_bin.size != 8 + || !enif_inspect_iolist_as_binary(env, argv[2], &data_bin)) { + return enif_make_badarg(env); + } + + BF_set_key(&bf_key, key_bin.size, key_bin.data); + memcpy(bf_tkey, ivec_bin.data, 8); + BF_ofb64_encrypt(data_bin.data, enif_make_new_binary(env,data_bin.size,&ret), + data_bin.size, &bf_key, bf_tkey, &bf_n); + return ret; +} + + + +#ifdef OPENSSL_THREADS /* vvvvvvvvvvvvvvv OPENSSL_THREADS vvvvvvvvvvvvvvvv */ + +static INLINE void locking(int mode, ErlNifRWLock* lock) +{ + switch (mode) { + case CRYPTO_LOCK|CRYPTO_READ: + enif_rwlock_rlock(lock); + break; + case CRYPTO_LOCK|CRYPTO_WRITE: + enif_rwlock_rwlock(lock); + break; + case CRYPTO_UNLOCK|CRYPTO_READ: + enif_rwlock_runlock(lock); + break; + case CRYPTO_UNLOCK|CRYPTO_WRITE: + enif_rwlock_rwunlock(lock); + break; + default: + ASSERT(!"Invalid lock mode"); + } +} + +/* Callback from openssl for static locking + */ +static void locking_function(int mode, int n, const char *file, int line) +{ + ASSERT(n>=0 && n<CRYPTO_num_locks()); + + locking(mode, lock_vec[n]); +} + +/* Callback from openssl for thread id + */ +static unsigned long id_function(void) +{ + return(unsigned long) enif_thread_self(); +} + +/* Callbacks for dynamic locking, not used by current openssl version (0.9.8) + */ +static struct CRYPTO_dynlock_value* dyn_create_function(const char *file, int line) { + return(struct CRYPTO_dynlock_value*) enif_rwlock_create("crypto_dyn"); +} +static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value* ptr,const char *file, int line) +{ + locking(mode, (ErlNifRWLock*)ptr); +} +static void dyn_destroy_function(struct CRYPTO_dynlock_value *ptr, const char *file, int line) +{ + enif_rwlock_destroy((ErlNifRWLock*)ptr); +} + +#endif /* ^^^^^^^^^^^^^^^^^^^^^^ OPENSSL_THREADS ^^^^^^^^^^^^^^^^^^^^^^ */ + +/* HMAC */ + +static void hmac_md5(unsigned char *key, int klen, unsigned char *dbuf, int dlen, + unsigned char *hmacbuf) +{ + MD5_CTX ctx; + char ipad[HMAC_INT_LEN]; + char opad[HMAC_INT_LEN]; + unsigned char nkey[MD5_LEN]; + int i; + + /* Change key if longer than 64 bytes */ + if (klen > HMAC_INT_LEN) { + MD5(key, klen, nkey); + key = nkey; + klen = MD5_LEN; + } + + memset(ipad, '\0', sizeof(ipad)); + memset(opad, '\0', sizeof(opad)); + memcpy(ipad, key, klen); + memcpy(opad, key, klen); + + for (i = 0; i < HMAC_INT_LEN; i++) { + ipad[i] ^= HMAC_IPAD; + opad[i] ^= HMAC_OPAD; + } + + /* inner MD5 */ + MD5_Init(&ctx); + MD5_Update(&ctx, ipad, HMAC_INT_LEN); + MD5_Update(&ctx, dbuf, dlen); + MD5_Final((unsigned char *) hmacbuf, &ctx); + /* outer MD5 */ + MD5_Init(&ctx); + MD5_Update(&ctx, opad, HMAC_INT_LEN); + MD5_Update(&ctx, hmacbuf, MD5_LEN); + MD5_Final((unsigned char *) hmacbuf, &ctx); +} + +static void hmac_sha1(unsigned char *key, int klen, + unsigned char *dbuf, int dlen, + unsigned char *hmacbuf) +{ + SHA_CTX ctx; + char ipad[HMAC_INT_LEN]; + char opad[HMAC_INT_LEN]; + unsigned char nkey[SHA_LEN]; + int i; + + /* Change key if longer than 64 bytes */ + if (klen > HMAC_INT_LEN) { + SHA1(key, klen, nkey); + key = nkey; + klen = SHA_LEN; + } + + memset(ipad, '\0', sizeof(ipad)); + memset(opad, '\0', sizeof(opad)); + memcpy(ipad, key, klen); + memcpy(opad, key, klen); + + for (i = 0; i < HMAC_INT_LEN; i++) { + ipad[i] ^= HMAC_IPAD; + opad[i] ^= HMAC_OPAD; + } + + /* inner SHA */ + SHA1_Init(&ctx); + SHA1_Update(&ctx, ipad, HMAC_INT_LEN); + SHA1_Update(&ctx, dbuf, dlen); + SHA1_Final((unsigned char *) hmacbuf, &ctx); + /* outer SHA */ + SHA1_Init(&ctx); + SHA1_Update(&ctx, opad, HMAC_INT_LEN); + SHA1_Update(&ctx, hmacbuf, SHA_LEN); + SHA1_Final((unsigned char *) hmacbuf, &ctx); +} + diff --git a/lib/crypto/c_src/crypto_drv.c b/lib/crypto/c_src/crypto_drv.c deleted file mode 100644 index 5b6d750dde..0000000000 --- a/lib/crypto/c_src/crypto_drv.c +++ /dev/null @@ -1,1799 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 1999-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * - * %CopyrightEnd% - */ - -/* - * Purpose: Dynamically loadable driver for cryptography libraries. - * Based on OpenSSL. - */ - -#ifdef __WIN32__ -#include <windows.h> -#endif - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include "erl_driver.h" - -#define OPENSSL_THREAD_DEFINES -#include <openssl/opensslconf.h> -#ifndef OPENSSL_THREADS -# ifdef __GNUC__ -# warning No thread support by openssl. Driver will use coarse grain locking. -# endif -#endif - -#include <openssl/crypto.h> -#include <openssl/des.h> -/* #include <openssl/idea.h> This is not supported on the openssl OTP requires */ -#include <openssl/dsa.h> -#include <openssl/rsa.h> -#include <openssl/aes.h> -#include <openssl/md5.h> -#include <openssl/md4.h> -#include <openssl/sha.h> -#include <openssl/bn.h> -#include <openssl/objects.h> -#include <openssl/rc4.h> -#include <openssl/rc2.h> -#include <openssl/blowfish.h> -#include <openssl/rand.h> - -#ifdef VALGRIND -# include <valgrind/memcheck.h> - -/* libcrypto mixes supplied buffer contents into its entropy pool, - which makes valgrind complain about the use of uninitialized data. - We use this valgrind "request" to make sure that no such seemingly - undefined data escapes the driver. -*/ -# define ERL_VALGRIND_MAKE_MEM_DEFINED(ptr,size) \ - VALGRIND_MAKE_MEM_DEFINED(ptr,size) - -# define ERL_VALGRIND_ASSERT_MEM_DEFINED(ptr,size) \ - ((void) ((VALGRIND_CHECK_MEM_IS_DEFINED(ptr,size) == 0) ? 1 : \ - (fprintf(stderr,"\r\n####### VALGRIND_ASSSERT(%p,%d) failed at %s:%d\r\n",\ - (ptr),(size), __FILE__, __LINE__), abort(), 0))) -#else -# define ERL_VALGRIND_MAKE_MEM_DEFINED(ptr,size) -# define ERL_VALGRIND_ASSERT_MEM_DEFINED(ptr,size) -#endif - -#ifdef DEBUG -# define ASSERT(e) \ - ((void) ((e) ? 1 : (fprintf(stderr,"Assert '%s' failed at %s:%d\n",\ - #e, __FILE__, __LINE__), abort(), 0))) -#else -# define ASSERT(e) ((void) 1) -#endif - -#ifdef __GNUC__ -# define INLINE __inline__ -#elif defined(__WIN32__) -# define INLINE __forceinline -#else -# define INLINE -#endif - - -#define get_int32(s) ((((unsigned char*) (s))[0] << 24) | \ - (((unsigned char*) (s))[1] << 16) | \ - (((unsigned char*) (s))[2] << 8) | \ - (((unsigned char*) (s))[3])) - -#define put_int32(s,i) \ -{ (s)[0] = (char)(((i) >> 24) & 0xff);\ - (s)[1] = (char)(((i) >> 16) & 0xff);\ - (s)[2] = (char)(((i) >> 8) & 0xff);\ - (s)[3] = (char)((i) & 0xff);\ -} - -/* Driver interface declarations */ -static int init(void); -static void finish(void); -static ErlDrvData start(ErlDrvPort port, char *command); -static void stop(ErlDrvData drv_data); -static int crypto_control(ErlDrvData drv_data, unsigned int command, char *buf, - int len, char **rbuf, int rlen); - -/* openssl callbacks */ -#ifdef OPENSSL_THREADS -static void locking_function(int mode, int n, const char *file, int line); -static unsigned long id_function(void); -static struct CRYPTO_dynlock_value* dyn_create_function(const char *file, - int line); -static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value* ptr, - const char *file, int line); -static void dyn_destroy_function(struct CRYPTO_dynlock_value *ptr, - const char *file, int line); -#endif /* OPENSSL_THREADS */ - -/* helpers */ -static void hmac_md5(char *key, int klen, char *dbuf, int dlen, - char *hmacbuf); -static void hmac_sha1(char *key, int klen, char *dbuf, int dlen, - char *hmacbuf); - -static ErlDrvEntry crypto_driver_entry = { - init, - start, - stop, - NULL, /* output */ - NULL, /* ready_input */ - NULL, /* ready_output */ - "crypto_drv", - finish, - NULL, /* handle */ - crypto_control, - NULL, /* timeout */ - NULL, /* outputv */ - - NULL, /* ready_async */ - NULL, /* flush */ - NULL, /* call */ - NULL, /* event */ - ERL_DRV_EXTENDED_MARKER, - ERL_DRV_EXTENDED_MAJOR_VERSION, - ERL_DRV_EXTENDED_MINOR_VERSION, -#ifdef OPENSSL_THREADS - ERL_DRV_FLAG_USE_PORT_LOCKING, -#else - 0, -#endif - NULL, /* handle2 */ - NULL /* process_exit */ -}; - - -/* Keep the following definitions in alignment with the FUNC_LIST - * in crypto.erl. - */ - -#define DRV_INFO 0 -#define DRV_MD5 1 -#define DRV_MD5_INIT 2 -#define DRV_MD5_UPDATE 3 -#define DRV_MD5_FINAL 4 -#define DRV_SHA 5 -#define DRV_SHA_INIT 6 -#define DRV_SHA_UPDATE 7 -#define DRV_SHA_FINAL 8 -#define DRV_MD5_MAC 9 -#define DRV_MD5_MAC_96 10 -#define DRV_SHA_MAC 11 -#define DRV_SHA_MAC_96 12 -#define DRV_CBC_DES_ENCRYPT 13 -#define DRV_CBC_DES_DECRYPT 14 -#define DRV_EDE3_CBC_DES_ENCRYPT 15 -#define DRV_EDE3_CBC_DES_DECRYPT 16 -#define DRV_AES_CFB_128_ENCRYPT 17 -#define DRV_AES_CFB_128_DECRYPT 18 -#define DRV_RAND_BYTES 19 -#define DRV_RAND_UNIFORM 20 -#define DRV_MOD_EXP 21 -#define DRV_DSS_VERIFY 22 -#define DRV_RSA_VERIFY_SHA 23 -/* #define DRV_RSA_VERIFY_MD5 35 */ -#define DRV_CBC_AES128_ENCRYPT 24 -#define DRV_CBC_AES128_DECRYPT 25 -#define DRV_XOR 26 -#define DRV_RC4_ENCRYPT 27 /* no decrypt needed; symmetric */ -#define DRV_RC4_SETKEY 28 -#define DRV_RC4_ENCRYPT_WITH_STATE 29 -#define DRV_CBC_RC2_40_ENCRYPT 30 -#define DRV_CBC_RC2_40_DECRYPT 31 -#define DRV_CBC_AES256_ENCRYPT 32 -#define DRV_CBC_AES256_DECRYPT 33 -#define DRV_INFO_LIB 34 -/* #define DRV_RSA_VERIFY_SHA 23 */ -#define DRV_RSA_VERIFY_MD5 35 -#define DRV_RSA_SIGN_SHA 36 -#define DRV_RSA_SIGN_MD5 37 -#define DRV_DSS_SIGN 38 -#define DRV_RSA_PUBLIC_ENCRYPT 39 -#define DRV_RSA_PRIVATE_DECRYPT 40 -#define DRV_RSA_PRIVATE_ENCRYPT 41 -#define DRV_RSA_PUBLIC_DECRYPT 42 -#define DRV_DH_GENERATE_PARAMS 43 -#define DRV_DH_CHECK 44 -#define DRV_DH_GENERATE_KEY 45 -#define DRV_DH_COMPUTE_KEY 46 -#define DRV_MD4 47 -#define DRV_MD4_INIT 48 -#define DRV_MD4_UPDATE 49 -#define DRV_MD4_FINAL 50 - -#define SSL_VERSION_0_9_8 0 -#if SSL_VERSION_0_9_8 -#define DRV_SHA256 51 -#define DRV_SHA256_INIT 52 -#define DRV_SHA256_UPDATE 53 -#define DRV_SHA256_FINAL 54 -#define DRV_SHA512 55 -#define DRV_SHA512_INIT 56 -#define DRV_SHA512_UPDATE 57 -#define DRV_SHA512_FINAL 58 -#endif - -#define DRV_BF_CFB64_ENCRYPT 59 -#define DRV_BF_CFB64_DECRYPT 60 -#define DRV_BF_ECB_ENCRYPT 61 -#define DRV_BF_ECB_DECRYPT 62 -#define DRV_BF_OFB64_ENCRYPT 63 -#define DRV_BF_CBC_ENCRYPT 64 -#define DRV_BF_CBC_DECRYPT 65 - -/* #define DRV_CBC_IDEA_ENCRYPT 34 */ -/* #define DRV_CBC_IDEA_DECRYPT 35 */ - -/* Not DRV_DH_GENERATE_PARAMS DRV_DH_CHECK - * Calc RSA_VERIFY_* and RSA_SIGN once */ -#define NUM_CRYPTO_FUNCS 46 - -#define MD5_CTX_LEN (sizeof(MD5_CTX)) -#define MD5_LEN 16 -#define MD5_LEN_96 12 -#define MD4_CTX_LEN (sizeof(MD4_CTX)) -#define MD4_LEN 16 -#define SHA_CTX_LEN (sizeof(SHA_CTX)) -#define SHA_LEN 20 -#define SHA_LEN_96 12 -#define HMAC_INT_LEN 64 - -#define HMAC_IPAD 0x36 -#define HMAC_OPAD 0x5c - -#if SSL_VERSION_0_9_8 -#define SHA256_CTX_LEN (sizeof(SHA256_CTX)) -#define SHA256_LEN 32 - -#define SHA512_CTX_LEN (sizeof(SHA512_CTX)) -#define SHA512_LEN 64 -#endif - -/* INITIALIZATION AFTER LOADING */ - -/* - * This is the init function called after this driver has been loaded. - * It must *not* be declared static. Must return the address to - * the driver entry. - */ - -#if !defined(__WIN32__) -DRIVER_INIT(crypto_drv); -#endif - -DRIVER_INIT(crypto_drv) -{ - return &crypto_driver_entry; -} - -static ErlDrvRWLock** lock_vec = NULL; /* Static locks used by openssl */ - -/* DRIVER INTERFACE */ - -static int init(void) -{ - ErlDrvSysInfo sys_info; - int i; - - CRYPTO_set_mem_functions(driver_alloc, driver_realloc, driver_free); - -#ifdef OPENSSL_THREADS - driver_system_info(&sys_info, sizeof(sys_info)); - - if(sys_info.scheduler_threads > 1) { - lock_vec = driver_alloc(CRYPTO_num_locks()*sizeof(*lock_vec)); - if (lock_vec==NULL) return -1; - memset(lock_vec,0,CRYPTO_num_locks()*sizeof(*lock_vec)); - - for(i=CRYPTO_num_locks()-1; i>=0; --i) { - lock_vec[i] = erl_drv_rwlock_create("crypto_drv_stat"); - if (lock_vec[i]==NULL) return -1; - } - CRYPTO_set_locking_callback(locking_function); - CRYPTO_set_id_callback(id_function); - CRYPTO_set_dynlock_create_callback(dyn_create_function); - CRYPTO_set_dynlock_lock_callback(dyn_lock_function); - CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function); - } - /* else no need for locks */ -#endif /* OPENSSL_THREADS */ - - return 0; -} - -static void finish(void) -{ - /* Moved here from crypto_control() as it's not thread safe */ - CRYPTO_cleanup_all_ex_data(); - - if(lock_vec != NULL) { - int i; - for(i=CRYPTO_num_locks()-1; i>=0; --i) { - if (lock_vec[i] != NULL) { - erl_drv_rwlock_destroy(lock_vec[i]); - } - } - driver_free(lock_vec); - } -} - -static ErlDrvData start(ErlDrvPort port, char *command) -{ - set_port_control_flags(port, PORT_CONTROL_FLAG_BINARY); - return 0; /* not used */ -} - -static void stop(ErlDrvData drv_data) -{ - return; -} - -/* Helper functions for 'crypto_control' -*/ -static INLINE unsigned char* return_binary(char **rbuf, int rlen, int len) -{ - if (len <= rlen) { - return (unsigned char *) *rbuf; - } - else { - ErlDrvBinary* bin; - *rbuf = (char*) (bin = driver_alloc_binary(len)); - return (bin==NULL) ? NULL : (unsigned char *) bin->orig_bytes; - } -} - -static INLINE unsigned char* return_binary_shrink(char **rbuf, int rlen, unsigned char* data, int len) -{ - if ((char *) data == *rbuf) { /* default buffer */ - ASSERT(len <= rlen); - return (unsigned char *) data; - } - else { - ErlDrvBinary* bin = (ErlDrvBinary*) *rbuf; - *rbuf = (char*) (bin=driver_realloc_binary(bin, len)); - return (bin==NULL) ? NULL : (unsigned char *) bin->orig_bytes; - } -} - -/* Nowadays (R13) it does matter what value control returns - * as it may return data in default buffer. - */ -static int crypto_control(ErlDrvData drv_data, unsigned int command, char *buf, - int len, char **rbuf, int rlen) -{ - int klen, dlen, macsize, from_len, to_len, i; - int base_len, exponent_len, modulo_len; - int data_len, dsa_p_len, dsa_q_len; - int dsa_s_len, dsa_g_len, dsa_y_len; - int rsa_e_len, rsa_n_len, rsa_d_len, padding; - int or_mask; - int prime_len, generator; - int privkey_len, pubkey_len, dh_p_len, dh_g_len; - unsigned int rsa_s_len, j; - char *key, *key2, *dbuf; - unsigned char *p; - const_DES_cblock *des_key, *des_key2, *des_key3; - const unsigned char *des_dbuf; - BIGNUM *bn_from, *bn_to, *bn_rand, *bn_result; - BIGNUM *bn_base, *bn_exponent, *bn_modulo; - BIGNUM *dsa_p, *dsa_q, *dsa_g, *dsa_y; - BIGNUM *rsa_n, *rsa_e, *rsa_d; - BIGNUM *dh_p, *dh_g, *privkey, *pubkey; - DES_cblock *des_ivec; - unsigned char* bin; - DES_key_schedule schedule, schedule2, schedule3; - DH *dh_params; -/* IDEA_KEY_SCHEDULE idea, idea2; */ - char hmacbuf[SHA_DIGEST_LENGTH]; - unsigned char *rsa_s, *dsa_s; - /* char hmacbuf[SHA_LEN]; */ -#if SSL_VERSION_0_9_8 - SHA256_CTX sha256_ctx; - SHA512_CTX sha512_ctx; -#endif - MD5_CTX md5_ctx; - MD4_CTX md4_ctx; - SHA_CTX sha_ctx; - int new_ivlen = 0; - BN_CTX *bn_ctx; - DSA *dsa; - RSA *rsa; - AES_KEY aes_key; - RC4_KEY rc4_key; - RC2_KEY rc2_key; - - switch(command) { - - case DRV_INFO: - bin = return_binary(rbuf,rlen,NUM_CRYPTO_FUNCS); - if (bin==NULL) return -1; - - for (i = 0; i < NUM_CRYPTO_FUNCS; i++) { - bin[i] = i + 1; - } - return NUM_CRYPTO_FUNCS; - - case DRV_MD5: - bin = return_binary(rbuf,rlen,MD5_LEN); - if (bin==NULL) return -1; - MD5((unsigned char *) buf, len, bin); - return MD5_LEN; - - case DRV_MD5_INIT: - bin = return_binary(rbuf,rlen,MD5_CTX_LEN); - if (bin==NULL) return -1; - MD5_Init((MD5_CTX *)bin); - return MD5_CTX_LEN; - - case DRV_MD5_UPDATE: - if (len < MD5_CTX_LEN) - return -1; - bin = return_binary(rbuf,rlen,MD5_CTX_LEN); - if (bin==NULL) return -1; - memcpy(bin, buf, MD5_CTX_LEN); - MD5_Update((MD5_CTX *)bin, buf + MD5_CTX_LEN, - len - MD5_CTX_LEN); - return MD5_CTX_LEN; - - case DRV_MD5_FINAL: - if (len != MD5_CTX_LEN) - return -1; - memcpy(&md5_ctx, buf, MD5_CTX_LEN); /* XXX Use buf only? */ - bin = return_binary(rbuf,rlen,MD5_LEN); - if (bin==NULL) return -1; - MD5_Final(bin, &md5_ctx); - return MD5_LEN; - - case DRV_SHA: - bin = return_binary(rbuf,rlen,SHA_LEN); - if (bin==NULL) return -1; - SHA1((unsigned char *) buf, len, bin); - return SHA_LEN; - - case DRV_SHA_INIT: - bin = return_binary(rbuf,rlen,SHA_CTX_LEN); - if (bin==NULL) return -1; - SHA1_Init((SHA_CTX*)bin); - return SHA_CTX_LEN; - - case DRV_SHA_UPDATE: - if (len < SHA_CTX_LEN) - return -1; - bin = return_binary(rbuf,rlen,SHA_CTX_LEN); - if (bin==NULL) return -1; - memcpy(bin, buf, SHA_CTX_LEN); - SHA1_Update((SHA_CTX*)bin, buf + SHA_CTX_LEN, len - SHA_CTX_LEN); - return SHA_CTX_LEN; - - case DRV_SHA_FINAL: - if (len != SHA_CTX_LEN) - return -1; - memcpy(&sha_ctx, buf, SHA_CTX_LEN); /* XXX Use buf only? */ - bin = return_binary(rbuf,rlen,SHA_LEN); - if (bin==NULL) return -1; - SHA1_Final(bin, &sha_ctx); - return SHA_LEN; - - case DRV_MD5_MAC: - case DRV_MD5_MAC_96: - /* buf = klen[4] key data */ - klen = get_int32(buf); - key = buf + 4; - dlen = len - klen - 4; - dbuf = key + klen; - hmac_md5(key, klen, dbuf, dlen, hmacbuf); - macsize = (command == DRV_MD5_MAC) ? MD5_LEN : MD5_LEN_96; - bin = return_binary(rbuf,rlen,macsize); - if (bin==NULL) return -1; - memcpy(bin, hmacbuf, macsize); - return macsize; - - case DRV_SHA_MAC: - case DRV_SHA_MAC_96: - /* buf = klen[4] key data */ - klen = get_int32(buf); - key = buf + 4; - dlen = len - klen - 4; - dbuf = key + klen; - hmac_sha1(key, klen, dbuf, dlen, hmacbuf); - macsize = (command == DRV_SHA_MAC) ? SHA_LEN : SHA_LEN_96; - bin = return_binary(rbuf,rlen,macsize); - if (bin==NULL) return -1; - memcpy(bin, (unsigned char *) hmacbuf, macsize); - return macsize; - - case DRV_CBC_DES_ENCRYPT: - case DRV_CBC_DES_DECRYPT: - /* buf = key[8] ivec[8] data */ - dlen = len - 16; - if (dlen < 0) - return -1; - if (dlen % 8 != 0) - return -1; - des_key = (const_DES_cblock*) buf; - des_ivec = (DES_cblock*)(buf + 8); - des_dbuf = (unsigned char *) (buf + 16); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - DES_set_key(des_key, &schedule); - DES_ncbc_encrypt(des_dbuf, bin, dlen, &schedule, des_ivec, - (command == DRV_CBC_DES_ENCRYPT)); - return dlen; - - case DRV_BF_ECB_ENCRYPT: - case DRV_BF_ECB_DECRYPT: - { - /* buf = klen[4] key data */ - int bf_direction; - const unsigned char *ukey; - const unsigned char *bf_dbuf; /* blowfish input data */ - BF_KEY bf_key; /* blowfish key 8 */ - - klen = get_int32(buf); - ukey = (unsigned char *) buf + 4; - bf_dbuf = ukey + klen; - dlen = len - 4 - klen; - if (dlen < 0) return -1; - BF_set_key(&bf_key, klen, ukey); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bf_direction = command == DRV_BF_ECB_ENCRYPT ? BF_ENCRYPT : BF_DECRYPT; - BF_ecb_encrypt(bf_dbuf, bin, &bf_key, bf_direction); - return dlen; - } - - case DRV_BF_CBC_ENCRYPT: - case DRV_BF_CBC_DECRYPT: - { - /* buf = klen[4] key ivec[8] data */ - unsigned char *ukey; - unsigned char* ivec; - unsigned char bf_tkey[8]; /* blowfish ivec */ - int bf_direction; - const unsigned char *bf_dbuf; /* blowfish input data */ - BF_KEY bf_key; /* blowfish key 8 */ - - klen = get_int32(buf); - ukey = (unsigned char *)buf + 4; - ivec = ukey + klen; - bf_dbuf = ivec + 8; - dlen = len - 4 - klen - 8; - if (dlen < 0) return -1; - BF_set_key(&bf_key, klen, ukey); - memcpy(bf_tkey, ivec, 8); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bf_direction = command == DRV_BF_CBC_ENCRYPT ? BF_ENCRYPT : BF_DECRYPT; - BF_cbc_encrypt(bf_dbuf, bin, dlen, &bf_key, bf_tkey, bf_direction); - return dlen; - } - - case DRV_BF_OFB64_ENCRYPT: - { - /* buf = klen[4] key ivec[8] data */ - unsigned char *ukey; - unsigned char* ivec; - unsigned char bf_tkey[8]; /* blowfish ivec */ - int bf_n; /* blowfish ivec pos */ - const unsigned char *bf_dbuf; /* blowfish input data */ - BF_KEY bf_key; /* blowfish key 8 */ - - klen = get_int32(buf); - ukey = (unsigned char *)buf + 4; - ivec = ukey + klen; - bf_dbuf = ivec + 8; - dlen = len - 4 - klen - 8; - if (dlen < 0) return -1; - BF_set_key(&bf_key, klen, ukey); - memcpy(bf_tkey, ivec, 8); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bf_n = 0; - BF_ofb64_encrypt(bf_dbuf, bin, dlen, &bf_key, bf_tkey, &bf_n); - return dlen; - } - - case DRV_BF_CFB64_ENCRYPT: - case DRV_BF_CFB64_DECRYPT: - { - /* buf = klen[4] key ivec[8] data */ - unsigned char* ivec; - unsigned char bf_tkey[8]; /* blowfish ivec */ - int bf_n; /* blowfish ivec pos */ - int bf_direction; - const unsigned char *bf_dbuf; /* blowfish input data */ - BF_KEY bf_key; /* blowfish key 8 */ - - klen = get_int32(buf); - key = buf + 4; - ivec = (unsigned char *) (key + klen); - bf_dbuf = ivec + 8; - dlen = len - 4 - klen - 8; - if (dlen < 0) return -1; - BF_set_key(&bf_key, klen, (unsigned char *) key); - memcpy(bf_tkey, ivec, 8); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bf_direction = command == DRV_BF_CFB64_ENCRYPT ? BF_ENCRYPT : BF_DECRYPT; - bf_n = 0; - BF_cfb64_encrypt(bf_dbuf, bin, dlen, &bf_key, bf_tkey, &bf_n, bf_direction); - return dlen; - } - -/* case DRV_CBC_IDEA_ENCRYPT: */ -/* case DRV_CBC_IDEA_DECRYPT: */ - /* buf = key[16] ivec[8] data */ -/* dlen = len - 24; */ -/* if (dlen < 0) */ -/* return -1; */ -/* if (dlen % 8 != 0) */ -/* return -1; */ -/* bin = return_binary(rbuf,rlen,dlen); */ -/* idea_set_encrypt_key(buf, &idea); */ -/* if (command == DRV_CBC_IDEA_DECRYPT) { */ -/* idea_set_decrypt_key(&idea, &idea2); */ -/* memcpy(&idea, &idea2, sizeof(idea)); */ -/* } */ -/* idea_cbc_encrypt(buf + 24, bin, dlen, &idea, buf + 8, */ -/* (command == DRV_CBC_IDEA_ENCRYPT)); */ -/* return dlen; */ - - case DRV_CBC_RC2_40_ENCRYPT: - case DRV_CBC_RC2_40_DECRYPT: - /* buf = key[5] ivec[8] data */ - dlen = len - 13; - if (dlen < 0) - return -1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - RC2_set_key(&rc2_key, 5, (unsigned char *) buf, 40); - RC2_cbc_encrypt((unsigned char *) (buf + 13), bin, dlen, &rc2_key, - (unsigned char *) (buf + 5), - (command == DRV_CBC_RC2_40_ENCRYPT)); - return dlen; - - case DRV_EDE3_CBC_DES_ENCRYPT: - case DRV_EDE3_CBC_DES_DECRYPT: - dlen = len - 32; - if (dlen < 0) - return -1; - des_key = (const_DES_cblock*) buf; - des_key2 = (const_DES_cblock*) (buf + 8); - des_key3 = (const_DES_cblock*) (buf + 16); - des_ivec = (DES_cblock*) (buf + 24); - des_dbuf = (unsigned char *) (buf + 32); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - DES_set_key(des_key, &schedule); - DES_set_key(des_key2, &schedule2); - DES_set_key(des_key3, &schedule3); - DES_ede3_cbc_encrypt(des_dbuf, bin, dlen, &schedule, - &schedule2, &schedule3, des_ivec, - (command == DRV_EDE3_CBC_DES_ENCRYPT)); - return dlen; - - case DRV_AES_CFB_128_ENCRYPT: - case DRV_AES_CFB_128_DECRYPT: - /* buf = key[16] ivec[16] data */ - dlen = len - 32; - if (dlen < 0) - return -1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - AES_set_encrypt_key((unsigned char *) buf, 128, &aes_key); - AES_cfb128_encrypt((unsigned char *) (buf+32), bin, dlen, &aes_key, - (unsigned char *) (buf+16), &new_ivlen, - (command == DRV_AES_CFB_128_ENCRYPT)); - return dlen; - - case DRV_RC4_ENCRYPT: - /* buf = klen[4] key data */ - klen = get_int32(buf); - key = buf + 4; - dlen = len - klen - 4; - dbuf = key + klen; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - RC4_set_key(&rc4_key, klen, (unsigned char *) key); - RC4(&rc4_key, dlen, (unsigned char *) dbuf, bin); - return dlen; - - case DRV_RC4_SETKEY: - /* buf = key */ - dlen = sizeof(rc4_key); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - RC4_set_key(&rc4_key, len, (unsigned char *) buf); - memcpy(bin, &rc4_key, dlen); - return dlen; - - case DRV_RC4_ENCRYPT_WITH_STATE: - /* buf = statelength[4] state data, return statelength[4] state data */ - klen = get_int32(buf); - key = buf + 4; - dlen = len - klen - 4; - dbuf = key + klen; - bin = return_binary(rbuf,rlen,len); - if (bin==NULL) return -1; - memcpy(&rc4_key, key, klen); - RC4(&rc4_key, dlen, (unsigned char *) dbuf, bin + klen + 4); - memcpy(bin, buf, 4); - memcpy(bin + 4, &rc4_key, klen); - return len; - - case DRV_RAND_BYTES: - /* buf = <<rlen:32/integer,topmask:8/integer,bottommask:8/integer>> */ - - if (len != 6) - return -1; - dlen = get_int32(buf); - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - RAND_pseudo_bytes(bin,dlen); - ERL_VALGRIND_MAKE_MEM_DEFINED(bin, dlen); - or_mask = ((unsigned char*)buf)[4]; - bin[dlen-1] |= or_mask; /* topmask */ - or_mask = ((unsigned char*)buf)[5]; - bin[0] |= or_mask; /* bottommask */ - return dlen; - - case DRV_RAND_UNIFORM: - /* buf = <<from_len:32/integer,bn_from:from_len/binary, * - * to_len:32/integer,bn_to:to_len/binary>> */ - if (len < 8) - return -1; - from_len = get_int32(buf); - if (len < (8 + from_len)) - return -1; - to_len = get_int32(buf + 4 + from_len); - if (len != (8 + from_len + to_len)) - return -1; - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf, 4 + from_len + 4 + to_len); - bn_from = BN_new(); - BN_bin2bn((unsigned char *)(buf + 4), from_len, bn_from); - bn_rand = BN_new(); - BN_bin2bn((unsigned char *)(buf + 8 + from_len), to_len, bn_rand); - bn_to = BN_new(); - BN_sub(bn_to, bn_rand, bn_from); - BN_pseudo_rand_range(bn_rand, bn_to); - BN_add(bn_rand, bn_rand, bn_from); - dlen = BN_num_bytes(bn_rand); - bin = return_binary(rbuf,rlen,dlen + 4); - if (bin==NULL) return -1; - put_int32(bin, dlen); - BN_bn2bin(bn_rand,(unsigned char*)(bin + 4)); - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+4, dlen); - BN_free(bn_rand); - BN_free(bn_from); - BN_free(bn_to); - return dlen + 4; - - case DRV_MOD_EXP: - /* buf = <<base_len:32/integer,base/binary, * - * exponent_len:32/integer,exponent/binary, * - * modulo_len:32/integer, modulo/binary>> */ - if (len < 12) - return -1; - base_len = get_int32(buf); - if (len < (12 + base_len)) - return -1; - exponent_len = get_int32(buf + 4 + base_len); - if (len < (12 + base_len + exponent_len)) - return -1; - modulo_len = get_int32(buf + 8 + base_len + exponent_len); - if (len != (12 + base_len + exponent_len + modulo_len)) - return -1; - bn_base = BN_new(); - BN_bin2bn((unsigned char *)(buf + 4), - base_len, bn_base); - bn_exponent = BN_new(); - BN_bin2bn((unsigned char *)(buf + 8 + base_len), - exponent_len, bn_exponent); - bn_modulo = BN_new(); - BN_bin2bn((unsigned char *)(buf + 12 + base_len + exponent_len), - modulo_len, bn_modulo); - bn_result = BN_new(); - bn_ctx = BN_CTX_new(); - BN_mod_exp(bn_result, bn_base, bn_exponent, - bn_modulo, bn_ctx); - dlen = BN_num_bytes(bn_result); - bin = return_binary(rbuf,rlen,dlen + 4); - if (bin==NULL) return -1; - put_int32(bin, dlen); - BN_bn2bin(bn_result,(unsigned char*)(bin + 4)); - BN_free(bn_result); - BN_free(bn_modulo); - BN_free(bn_exponent); - BN_free(bn_base); - BN_CTX_free(bn_ctx); - return dlen + 4; - - case DRV_DSS_VERIFY: - /* buf = <<data_len:32/integer, data:data_len/binary, - * dsa_s_len:32/integer, dsa_s:dsa_s_len/binary, - * dsa_p_len:32/integer, dsa_p:dsa_p_len/binary, - * dsa_q_len:32/integer, dsa_q:dsa_q_len/binary, - * dsa_g_len:32/integer, dsa_g:dsa_g_len/binary, - * dsa_y_len:32/integer, dsa_y:dsa_y_len/binary>> */ - i = 0; - j = 0; - if (len < 24) - return -1; - data_len = get_int32(buf + i + j); - j += data_len; i += 4; - if (len < (24 + j)) - return -1; - dsa_s_len = get_int32(buf + i + j); - j += dsa_s_len; i += 4; - if (len < (24 + j)) - return -1; - dsa_p_len = get_int32(buf + i + j); - j += dsa_p_len; i += 4; - if (len < (24 + j)) - return -1; - dsa_q_len = get_int32(buf + i + j); - j += dsa_q_len; i += 4; - if (len < (24 + j)) - return -1; - dsa_g_len = get_int32(buf + i + j); - j += dsa_g_len; i += 4; - if (len < (24 + j)) - return -1; - dsa_y_len = get_int32(buf + i + j); - j += dsa_y_len; - if (len != (24 + j)) - return -1; - i = 4; - SHA1((unsigned char *) (buf + i), data_len, (unsigned char *) hmacbuf); - i += data_len + 4; - dsa_s = (unsigned char *)(buf + i); - i += (dsa_s_len + 4); - dsa_p = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_p_len, dsa_p); - i += (dsa_p_len + 4); - dsa_q = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_q_len, dsa_q); - i += (dsa_q_len + 4); - dsa_g = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_g_len, dsa_g); - i += (dsa_g_len + 4); - dsa_y = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_y_len, dsa_y); - dsa = DSA_new(); - dsa->p = dsa_p; - dsa->q = dsa_q; - dsa->g = dsa_g; - dsa->priv_key = NULL; - dsa->pub_key = dsa_y; - i = DSA_verify(0, (unsigned char *) hmacbuf, SHA_DIGEST_LENGTH, - dsa_s, dsa_s_len, dsa); - bin = return_binary(rbuf,rlen,1); - if (bin==NULL) return -1; - - DSA_free(dsa); - bin[0] = (i > 0) ? 1 : 0; - return 1; - - case DRV_DSS_SIGN: - /* buf = <<data_len:32/integer, data:data_len/binary, - * dsa_p_len:32/integer, dsa_p:dsa_p_len/binary, - * dsa_q_len:32/integer, dsa_q:dsa_q_len/binary, - * dsa_g_len:32/integer, dsa_g:dsa_g_len/binary, - * dsa_y_len:32/integer, dsa_y:dsa_y_len/binary, - * dsa_x_len:32/integer, dsa_s:dsa_x_len/binary>> */ - i = 0; - j = 0; - if (len < 20) - return -1; - data_len = get_int32(buf + i + j); - j += data_len; i += 4; - if (len < (20 + j)) - return -1; - dsa_p_len = get_int32(buf + i + j); - j += dsa_p_len; i += 4; - if (len < (20 + j)) - return -1; - dsa_q_len = get_int32(buf + i + j); - j += dsa_q_len; i += 4; - if (len < (20 + j)) - return -1; - dsa_g_len = get_int32(buf + i + j); - j += dsa_g_len; i += 4; - if (len < (20 + j)) - return -1; - dsa_y_len = get_int32(buf + i + j); - j += dsa_y_len; - if (len < (20 + j)) - return -1; - if (len != (20 + j)) - return -1; - - i = 4; - SHA1((unsigned char *) (buf + i), data_len, (unsigned char *) hmacbuf); - i += data_len + 4; - dsa_p = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_p_len, dsa_p); - i += (dsa_p_len + 4); - dsa_q = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_q_len, dsa_q); - i += (dsa_q_len + 4); - dsa_g = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_g_len, dsa_g); - i += (dsa_g_len + 4); - dsa_y = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dsa_y_len, dsa_y); - /* i += (dsa_y_len + 4); */ - - dsa = DSA_new(); - dsa->p = dsa_p; - dsa->q = dsa_q; - dsa->g = dsa_g; - dsa->priv_key = dsa_y; - dsa->pub_key = NULL; - dlen = DSA_size(dsa); - bin = return_binary(rbuf,rlen, dlen+1); - if (bin==NULL) return -1; - i = DSA_sign(NID_sha1, - (unsigned char *) hmacbuf,SHA_DIGEST_LENGTH, - (unsigned char *) &bin[1], - (unsigned int *) &dsa_s_len, dsa); - DSA_free(dsa); - if (i) { - if (dsa_s_len != dlen) { - bin = return_binary_shrink(rbuf,rlen,bin,dsa_s_len+1); - } - bin[0] = 1; - return dsa_s_len + 1; - } - else { - bin[0] = 0; - return 1; - } - - case DRV_RSA_VERIFY_MD5: - case DRV_RSA_VERIFY_SHA: - /* buf = <<data_len:32/integer, data:data_len/binary, - * rsa_s_len:32/integer, rsa_s:rsa_s_len/binary, - * rsa_e_len:32/integer, rsa_e:rsa_e_len/binary, - * rsa_n_len:32/integer, rsa_n:rsa_n_len/binary>> */ - i = 0; - j = 0; - if (len < 16) - return -1; - data_len = get_int32(buf + i + j); - j += data_len; i += 4; - if (len < (16 + j)) - return -1; - rsa_s_len = get_int32(buf + i + j); - j += rsa_s_len; i += 4; - if (len < (16 + j)) - return -1; - rsa_e_len = get_int32(buf + i + j); - j += rsa_e_len; i += 4; - if (len < (16 + j)) - return -1; - rsa_n_len = get_int32(buf + i + j); - j += rsa_n_len; i += 4; - if (len != (16 + j)) - return -1; - i = 4; - i += (data_len + 4); - rsa_s = (unsigned char *)(buf + i); - i += (rsa_s_len + 4); - rsa_e = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), rsa_e_len, rsa_e); - i += (rsa_e_len + 4); - rsa_n = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), rsa_n_len, rsa_n); - rsa = RSA_new(); - rsa->n = rsa_n; - rsa->e = rsa_e; - i = 4; - if(command == DRV_RSA_VERIFY_SHA) { - SHA1((unsigned char *) (buf + i), data_len, - (unsigned char *) hmacbuf); - i = RSA_verify(NID_sha1, (unsigned char *) hmacbuf, SHA_DIGEST_LENGTH, - rsa_s, rsa_s_len, rsa); - } else { - MD5((unsigned char *) (buf + i), data_len, (unsigned char *) hmacbuf); - i = RSA_verify(NID_md5, (unsigned char *) hmacbuf, MD5_DIGEST_LENGTH, - rsa_s, rsa_s_len, rsa); - } - - bin = return_binary(rbuf,rlen,1); - if (bin==NULL) return -1; - bin[0] = (char)(i & 0xff); - RSA_free(rsa); - return 1; - - case DRV_RSA_SIGN_MD5: - case DRV_RSA_SIGN_SHA: - /* buf = <<data_len:32/integer, data:data_len/binary, - * rsa_e_len:32/integer, rsa_e:rsa_e_len/binary, - * rsa_n_len:32/integer, rsa_n:rsa_n_len/binary, - * rsa_d_len:32/integer, rsa_d:rsa_d_len/binary>> */ - - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf,len); - - i = 0; - j = 0; - - if (len < 16) - return -1; - data_len = get_int32(buf + i + j); - j += data_len; i += 4; - if (len < (16 + j)) - return -1; - rsa_e_len = get_int32(buf + i + j); - j += rsa_e_len; i += 4; - if (len < (16 + j)) - return -1; - rsa_n_len = get_int32(buf + i + j); - j += rsa_n_len; i += 4; - if (len < (16 + j)) - return -1; - rsa_d_len = get_int32(buf + i + j); - j += rsa_d_len; i += 4; - if (len != (16 + j)) - return -1; - - i = 4; - i += (data_len + 4); - rsa_e = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), rsa_e_len, rsa_e); - i += (rsa_e_len + 4); - rsa_n = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), rsa_n_len, rsa_n); - i += (rsa_n_len + 4); - rsa_d = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), rsa_d_len, rsa_d); - i += (rsa_d_len + 4); - - rsa = RSA_new(); - rsa->e = rsa_e; - rsa->n = rsa_n; - rsa->d = rsa_d; - - dlen = RSA_size(rsa); - bin = return_binary(rbuf,rlen,dlen+1); - if (bin==NULL) return -1; - i = 4; - if (command == DRV_RSA_SIGN_MD5) { - MD5((unsigned char *) (buf + i), data_len, (unsigned char *) hmacbuf); - ERL_VALGRIND_ASSERT_MEM_DEFINED(hmacbuf, MD5_DIGEST_LENGTH); - i = RSA_sign(NID_md5, - (unsigned char *) hmacbuf,MD5_DIGEST_LENGTH, - (unsigned char *) &bin[1], - &rsa_s_len, rsa); - } else { - SHA1((unsigned char *) (buf + i), data_len, - (unsigned char *) hmacbuf); - ERL_VALGRIND_ASSERT_MEM_DEFINED(hmacbuf, SHA_DIGEST_LENGTH); - i = RSA_sign(NID_sha1, - (unsigned char *) hmacbuf,SHA_DIGEST_LENGTH, - (unsigned char *) &bin[1], - &rsa_s_len, rsa); - } - RSA_free(rsa); - if (i) { - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+1, rsa_s_len); - if (rsa_s_len != dlen) { - bin = return_binary_shrink(rbuf,rlen,bin,rsa_s_len+1); - ERL_VALGRIND_ASSERT_MEM_DEFINED(bin+1, rsa_s_len); - } - bin[0] = 1; - return rsa_s_len + 1; - } - else { - bin[0] = 0; - return 1; - } - - case DRV_RSA_PRIVATE_DECRYPT: - case DRV_RSA_PRIVATE_ENCRYPT: - /* buf = <<data_len:32/integer, data:data_len/binary, - * rsa_e_len:32/integer, rsa_e:rsa_e_len/binary, - * rsa_n_len:32/integer, rsa_n:rsa_n_len/binary, - * rsa_d_len:32/integer, rsa_d:rsa_d_len/binary, - * pad:8/integer >> */ - - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf,len); - i = 0; - j = 0; - - if (len < 17) - return -1; - data_len = get_int32(buf + i + j); - j += data_len; i += 4; - if (len < (17 + j)) - return -1; - rsa_e_len = get_int32(buf + i + j); - j += rsa_e_len; i += 4; - if (len < (17 + j)) - return -1; - rsa_n_len = get_int32(buf + i + j); - j += rsa_n_len; i += 4; - if (len < (17 + j)) - return -1; - rsa_d_len = get_int32(buf + i + j); - j += rsa_d_len; i += 4; - padding = *(unsigned char *) (buf+i+j); - if (len != (17 + j)) - return -1; - - i = 4; - i += (data_len + 4); - rsa_e = BN_new(); - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,rsa_e_len); - BN_bin2bn((unsigned char *)(buf + i), rsa_e_len, rsa_e); - i += (rsa_e_len + 4); - rsa_n = BN_new(); - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,rsa_n_len); - BN_bin2bn((unsigned char *)(buf + i), rsa_n_len, rsa_n); - i += (rsa_n_len + 4); - rsa_d = BN_new(); - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,rsa_d_len); - BN_bin2bn((unsigned char *)(buf + i), rsa_d_len, rsa_d); - i += (rsa_d_len + 4); - - switch(padding) { - case 0: - padding = RSA_NO_PADDING; - break; - case 1: - padding = RSA_PKCS1_PADDING; - break; - case 2: - padding = RSA_PKCS1_OAEP_PADDING; - break; - case 3: - padding = RSA_SSLV23_PADDING; - break; - default: - return -1; - } - - rsa = RSA_new(); - rsa->e = rsa_e; - rsa->n = rsa_n; - rsa->d = rsa_d; - - dlen = RSA_size(rsa) + 1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - i = 4; - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,data_len); - if(command == DRV_RSA_PRIVATE_DECRYPT) { - i = RSA_private_decrypt(data_len, (unsigned char *) (buf+i), - (unsigned char *) &bin[1], - rsa, padding); - if(i > 0) { - ERL_VALGRIND_MAKE_MEM_DEFINED(&bin[1],i); - bin = return_binary_shrink(rbuf,rlen, bin, i+1); - if (bin==NULL) return -1; - } - } else { - i = RSA_private_encrypt(data_len, (unsigned char *) (buf+i), - (unsigned char *) &bin[1], - rsa, padding); - if(i > 0) { - ERL_VALGRIND_MAKE_MEM_DEFINED(&bin[1],i); - } - } - RSA_free(rsa); - if(i > 0) { - bin[0] = 1; - return i + 1; - } else { - bin[0] = 0; - return 1; - } - break; - - case DRV_RSA_PUBLIC_ENCRYPT: - case DRV_RSA_PUBLIC_DECRYPT: - /* buf = <<data_len:32/integer, data:data_len/binary, - * rsa_e_len:32/integer, rsa_e:rsa_e_len/binary, - * rsa_n_len:32/integer, rsa_n:rsa_n_len/binary, - * pad:8/integer >> */ - - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf,len); - i = 0; - j = 0; - - if (len < 13) - return -1; - data_len = get_int32(buf + i + j); - j += data_len; i += 4; - if (len < (13 + j)) - return -1; - rsa_e_len = get_int32(buf + i + j); - j += rsa_e_len; i += 4; - if (len < (13 + j)) - return -1; - rsa_n_len = get_int32(buf + i + j); - j += rsa_n_len; i += 4; - if (len < (13 + j)) - return -1; - padding = *(unsigned char *) (buf + i + j); - if (len != (13 + j)) - return -1; - - i = 4; - i += (data_len + 4); - rsa_e = BN_new(); - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,rsa_e_len); - BN_bin2bn((unsigned char *)(buf + i), rsa_e_len, rsa_e); - i += (rsa_e_len + 4); - rsa_n = BN_new(); - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,rsa_n_len); - BN_bin2bn((unsigned char *)(buf + i), rsa_n_len, rsa_n); - i += (rsa_n_len + 4); - - switch(padding) { - case 0: - padding = RSA_NO_PADDING; - break; - case 1: - padding = RSA_PKCS1_PADDING; - break; - case 2: - padding = RSA_PKCS1_OAEP_PADDING; - break; - case 3: - padding = RSA_SSLV23_PADDING; - break; - default: - return -1; - } - - rsa = RSA_new(); - rsa->e = rsa_e; - rsa->n = rsa_n; - - dlen = RSA_size(rsa) + 1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - i = 4; - if(command == DRV_RSA_PUBLIC_ENCRYPT) { - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf+i,data_len); - i = RSA_public_encrypt(data_len, (unsigned char *) (buf+i), - (unsigned char *) &bin[1], - rsa, padding); - if (i > 0) { - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+1, i); - } - } else { - i = RSA_public_decrypt(data_len, (unsigned char *) (buf+i), - (unsigned char *) &bin[1], - rsa, padding); - if(i > 0) { - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+1, i); - bin = return_binary_shrink(rbuf,rlen,bin, i+1); - if (bin==NULL) return -1; - } - } - - RSA_free(rsa); - if(i > 0) { - bin[0] = 1; - return i + 1; - } else { -/* ERR_load_crypto_strings(); */ -/* fprintf(stderr, "%d: %s \r\n", __LINE__, ERR_reason_error_string(ERR_get_error())); */ - bin[0] = 0; - return 1; - } - break; - - case DRV_CBC_AES128_ENCRYPT: - case DRV_CBC_AES256_ENCRYPT: - case DRV_CBC_AES128_DECRYPT: - case DRV_CBC_AES256_DECRYPT: - /* buf = key[klen] ivec[klen] data */ - if (command == DRV_CBC_AES256_ENCRYPT || command == DRV_CBC_AES256_DECRYPT) - klen = 32; - else - klen = 16; - dlen = len - klen - 16; - if (dlen < 0) - return -1; - if (dlen % 16 != 0) - return -1; - if (command == DRV_CBC_AES128_ENCRYPT || command == DRV_CBC_AES256_ENCRYPT) { - i = AES_ENCRYPT; - AES_set_encrypt_key((unsigned char *) buf, klen*8, &aes_key); - } else { - i = AES_DECRYPT; - AES_set_decrypt_key((unsigned char *) buf, klen*8, &aes_key); - } - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - AES_cbc_encrypt((unsigned char *) (buf + klen+16), - (unsigned char *) bin, - dlen, - &aes_key, - (unsigned char *) (buf + klen), - i); - return dlen; - -/* case DRV_CBC_AES128_DECRYPT: */ -/* case DRV_CBC_AES256_DECRYPT: */ -/* /\* buf = key[klen] ivec[16] data *\/ */ -/* if (command == DRV_CBC_AES256_DECRYPT) */ -/* klen = 32; */ -/* else */ -/* klen = 16; */ -/* dlen = len - klen - 16; */ -/* if (dlen < 0) */ -/* return -1; */ -/* *rbuf = (char *)(bin = driver_alloc_binary(dlen)); */ -/* AES_set_decrypt_key((unsigned char *) buf, klen*8, &aes_key); */ -/* AES_cbc_encrypt((unsigned char *) (buf + klen+16), */ -/* (unsigned char *) bin->orig_bytes, */ -/* dlen, */ -/* &aes_key, */ -/* (unsigned char *) (buf + klen), */ -/* AES_DECRYPT); */ -/* return dlen; */ -/* break; */ - - case DRV_XOR: - /* buf = data1, data2 with same size */ - dlen = len / 2; - if (len != dlen * 2) - return -1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - p = bin, - dbuf = buf + dlen; - for (key = buf, key2 = dbuf; key != dbuf; ++key, ++key2, ++p) - *p = *key ^ *key2; - return dlen; - - case DRV_DH_GENERATE_PARAMS: - /* buf = <<PrimeLen:32 Generator:32>> */ - if (len != 8) - return -1; - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf,len); - prime_len = get_int32(buf); - generator = get_int32(buf+4); - dh_params = DH_generate_parameters(prime_len, generator, NULL, NULL); - - if(dh_params) { - dh_p_len = BN_num_bytes(dh_params->p); - dh_g_len = BN_num_bytes(dh_params->g); - dlen = 1 + 4 + 4 + dh_g_len + dh_p_len; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bin[0] = 1; - put_int32(bin+1, dh_p_len); - BN_bn2bin(dh_params->p, bin+5); - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+5,dh_p_len); - put_int32(bin+5+dh_p_len, dh_g_len); - BN_bn2bin(dh_params->g, bin+5+dh_p_len+4); - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+5+dh_p_len+4,dh_g_len); - } else { - dlen = 1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bin[0] = 0; - } - DH_free(dh_params); - return dlen; - - case DRV_DH_CHECK: - /* buf = <<dh_p_len:32/integer, dh_p:dh_p_len/binary, - * dh_g_len:32/integer, dh_g:dh_g_len/binary>> */ - i = 0; - j = 0; - if(len < 8) return -1; - dh_p_len = get_int32(buf + i + j); - j += dh_p_len; i += 4; - if (len < (8 + j)) return -1; - dh_g_len = get_int32(buf + i + j); - j += dh_g_len; i += 4; - if(len != (8+j)) return -1; - i=4; - dh_p = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dh_p_len, dh_p); - i += (dh_p_len + 4); - dh_g = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dh_g_len, dh_g); - /* i += (dsa_g_len + 4); */ - - dh_params = DH_new(); - dh_params->p = dh_p; - dh_params->g = dh_g; - - i=0; - bin = return_binary(rbuf,rlen,4); - if (bin==NULL) return -1; - if(DH_check(dh_params, &i)) { - put_int32(bin, i); - } else { - /* Check Failed */ - put_int32(bin, -1); - } - DH_free(dh_params); - return 4; - - case DRV_DH_GENERATE_KEY: - /* buf = <<key_len:32, key:key_len/binary, * - * dh_p_len:32/integer, dh_p:dh_p_len/binary, * - * dh_g_len:32/integer, dh_g:dh_g_len/binary>> */ - ERL_VALGRIND_ASSERT_MEM_DEFINED(buf,len); - i = 0; - j = 0; - if(len < 12) return -1; - base_len = get_int32(buf + i + j); - j += base_len; i += 4; - if (len < (12 + j)) return -1; - dh_p_len = get_int32(buf + i + j); - j += dh_p_len; i += 4; - if (len < (12 + j)) return -1; - dh_g_len = get_int32(buf + i + j); - j += dh_g_len; i += 4; - if(len != (12 + j)) return -1; - i=4; - i += (base_len + 4); - dh_p = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dh_p_len, dh_p); - i += (dh_p_len + 4); - dh_g = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dh_g_len, dh_g); - /* i += (dsa_g_len + 4); */ - - dh_params = DH_new(); - dh_params->p = dh_p; - dh_params->g = dh_g; - if(base_len > 0) { - dh_params->priv_key = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), base_len, - dh_params->priv_key); - } - i=0; - if(DH_generate_key(dh_params)) { - privkey_len = BN_num_bytes(dh_params->priv_key); - pubkey_len = BN_num_bytes(dh_params->pub_key); - dlen = 1 + 4 + 4 + pubkey_len + privkey_len; - bin = return_binary(rbuf,rlen, dlen); - if (bin==NULL) return -1; - bin[0] = 1; - put_int32(bin+1, pubkey_len); - BN_bn2bin(dh_params->pub_key, bin+5); - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+5, pubkey_len); - put_int32(bin+5+pubkey_len, privkey_len); - BN_bn2bin(dh_params->priv_key, bin+5+pubkey_len+4); - ERL_VALGRIND_MAKE_MEM_DEFINED(bin+5+pubkey_len+4, privkey_len); - } else { - dlen = 1; - bin = return_binary(rbuf,rlen,dlen); - if (bin==NULL) return -1; - bin[0] = 0; - } - DH_free(dh_params); - return dlen; - - case DRV_DH_COMPUTE_KEY: - /* buf = <<pubkey_len:32, pubkey:pubkey_len/binary, * - * privkey_len:32, privkey:privkey_len/binary, * - * dh_p_len:32/integer, dh_p:dh_p_len/binary, * - * dh_g_len:32/integer, dh_g:dh_g_len/binary>> */ - i = 0; - j = 0; - if(len < 16) return -1; - pubkey_len = get_int32(buf + i + j); - j += pubkey_len; i += 4; - if (len < (16 + j)) return -1; - privkey_len = get_int32(buf + i + j); - j += privkey_len; i += 4; - if (len < (16 + j)) return -1; - dh_p_len = get_int32(buf + i + j); - j += dh_p_len; i += 4; - if (len < (16 + j)) return -1; - dh_g_len = get_int32(buf + i + j); - j += dh_g_len; i += 4; - if(len != (16 + j)) return -1; - i=4; - pubkey = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), pubkey_len, pubkey); - i += (pubkey_len + 4); - privkey = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), privkey_len, privkey); - i += (privkey_len + 4); - dh_p = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dh_p_len, dh_p); - i += (dh_p_len + 4); - dh_g = BN_new(); - BN_bin2bn((unsigned char *)(buf + i), dh_g_len, dh_g); - /* i += (dsa_g_len + 4); */ - - dh_params = DH_new(); - dh_params->p = dh_p; - dh_params->g = dh_g; - dh_params->priv_key = privkey; - - klen = DH_size(dh_params); - bin = return_binary(rbuf,rlen,1+klen); - if (bin==NULL) return -1; - i = DH_compute_key(&bin[1], pubkey, dh_params); - DH_free(dh_params); - if (i > 0) { - if (i != klen) { - bin = return_binary_shrink(rbuf,rlen,bin,1+i); - } - bin[0] = 1; - return i + 1; - } - else { - bin[0] = 0; - return 1; - } - - case DRV_MD4: - bin = return_binary(rbuf,rlen,MD4_LEN); - MD4((unsigned char *)buf, len, (unsigned char *)bin); - return MD4_LEN; - - case DRV_MD4_INIT: - bin = return_binary(rbuf,rlen,MD4_CTX_LEN); - MD4_Init((MD4_CTX *) bin); - return MD4_CTX_LEN; - - case DRV_MD4_UPDATE: - if (len < MD4_CTX_LEN) - return -1; - bin = return_binary(rbuf,rlen,MD4_CTX_LEN); - memcpy(bin, buf, MD4_CTX_LEN); - MD4_Update((MD4_CTX *) bin, buf + MD4_CTX_LEN, len - MD4_CTX_LEN); - return MD4_CTX_LEN; - - case DRV_MD4_FINAL: - if (len != MD4_CTX_LEN) - return -1; - memcpy(&md4_ctx, buf, MD4_CTX_LEN); /* XXX Use buf only? */ - bin = return_binary(rbuf,rlen,MD4_LEN); - MD4_Final((unsigned char *)bin, &md4_ctx); - return MD4_LEN; - -#if SSL_VERSION_0_9_8 - case DRV_SHA256: - bin = return_binary(rbuf,rlen,SHA256_LEN); - SHA256(buf, len, bin); - return SHA256_LEN; - - case DRV_SHA256_INIT: - bin = return_binary(rbuf,rlen,SHA256_CTX_LEN); - SHA256_Init((SHA256_CTX *)bin); - return SHA256_CTX_LEN; - - case DRV_SHA256_UPDATE: - if (len < SHA256_CTX_LEN) - return -1; - bin = return_binary(rbuf,rlen,SHA256_CTX_LEN); - memcpy(bin, buf, SHA256_CTX_LEN); - SHA256_Update((SHA256_CTX *)bin, buf + SHA256_CTX_LEN, - len - SHA256_CTX_LEN); - return SHA256_CTX_LEN; - - case DRV_SHA256_FINAL: - if (len != SHA256_CTX_LEN) - return -1; - memcpy(&sha256_ctx, buf, SHA256_CTX_LEN); /* XXX Use buf only? */ - bin = return_binary(rbuf,rlen,SHA256_LEN); - SHA256_Final(bin, &sha256_ctx); - return SHA256_LEN; - - case DRV_SHA512: - bin = return_binary(rbuf,rlen,SHA512_LEN); - SHA512(buf, len, bin); - return SHA512_LEN; - - case DRV_SHA512_INIT: - bin = return_binary(rbuf,rlen,SHA512_CTX_LEN); - SHA512_Init((SHA512_CTX *)bin); - return SHA512_CTX_LEN; - - case DRV_SHA512_UPDATE: - if (len < SHA512_CTX_LEN) - return -1; - bin = return_binary(rbuf,rlen,SHA512_CTX_LEN); - memcpy(bin, buf, SHA512_CTX_LEN); - SHA512_Update((SHA512_CTX *)bin, buf + SHA512_CTX_LEN, - len - SHA512_CTX_LEN); - return SHA512_CTX_LEN; - - case DRV_SHA512_FINAL: - if (len != SHA512_CTX_LEN) - return -1; - memcpy(&sha512_ctx, buf, SHA512_CTX_LEN); /* XXX Use buf only? */ - bin = return_binary(rbuf,rlen,SHA512_LEN)); - SHA512_Final(bin, &sha512_ctx); - return SHA512_LEN; -#endif - - case DRV_INFO_LIB: - {/* <<DrvVer:8, NameSize:8, Name:NameSize/binary, VerNum:32, VerStr/binary>> */ - static const char libname[] = "OpenSSL"; - unsigned name_sz = strlen(libname); - const char* ver = SSLeay_version(SSLEAY_VERSION); - unsigned ver_sz = strlen(ver); - dlen = 1+1+name_sz+4+ver_sz; - bin = return_binary(rbuf, rlen, dlen); - if (bin==NULL) return -1; - p = bin; - *p++ = 0; /* "driver version" for future use */ - *p++ = name_sz; - memcpy(p, libname, name_sz); - p += name_sz; - put_int32(p,SSLeay()); /* OPENSSL_VERSION_NUMBER */ - p += 4; - memcpy(p, ver, ver_sz); - } - return dlen; - - default: - break; - } - return -1; -} - - -#ifdef OPENSSL_THREADS /* vvvvvvvvvvvvvvv OPENSSL_THREADS vvvvvvvvvvvvvvvv */ - -static INLINE void locking(int mode, ErlDrvRWLock* lock) -{ - switch(mode) { - case CRYPTO_LOCK|CRYPTO_READ: - erl_drv_rwlock_rlock(lock); - break; - case CRYPTO_LOCK|CRYPTO_WRITE: - erl_drv_rwlock_rwlock(lock); - break; - case CRYPTO_UNLOCK|CRYPTO_READ: - erl_drv_rwlock_runlock(lock); - break; - case CRYPTO_UNLOCK|CRYPTO_WRITE: - erl_drv_rwlock_rwunlock(lock); - break; - default: - ASSERT(!"Invalid lock mode"); - } -} - -/* Callback from openssl for static locking - */ -static void locking_function(int mode, int n, const char *file, int line) -{ - ASSERT(n>=0 && n<CRYPTO_num_locks()); - - locking(mode, lock_vec[n]); -} - -/* Callback from openssl for thread id - */ -static unsigned long id_function(void) -{ - return (unsigned long) erl_drv_thread_self(); -} - -/* Callbacks for dynamic locking, not used by current openssl version (0.9.8) - */ -static struct CRYPTO_dynlock_value* dyn_create_function(const char *file, int line) -{ - return (struct CRYPTO_dynlock_value*) erl_drv_rwlock_create("crypto_drv_dyn"); -} -static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value* ptr,const char *file, int line) -{ - locking(mode, (ErlDrvRWLock*)ptr); -} -static void dyn_destroy_function(struct CRYPTO_dynlock_value *ptr, const char *file, int line) -{ - erl_drv_rwlock_destroy((ErlDrvRWLock*)ptr); -} - -#endif /* ^^^^^^^^^^^^^^^^^^^^^^ OPENSSL_THREADS ^^^^^^^^^^^^^^^^^^^^^^ */ - -/* HMAC */ - -static void hmac_md5(char *key, int klen, char *dbuf, int dlen, char *hmacbuf) -{ - MD5_CTX ctx; - char ipad[HMAC_INT_LEN]; - char opad[HMAC_INT_LEN]; - unsigned char nkey[MD5_LEN]; - int i; - - /* Change key if longer than 64 bytes */ - if (klen > HMAC_INT_LEN) { - MD5_CTX kctx; - - MD5_Init(&kctx); - MD5_Update(&kctx, key, klen); - MD5_Final(nkey, &kctx); - key = (char *) nkey; - klen = MD5_LEN; - } - - memset(ipad, '\0', sizeof(ipad)); - memset(opad, '\0', sizeof(opad)); - memcpy(ipad, key, klen); - memcpy(opad, key, klen); - - for (i = 0; i < HMAC_INT_LEN; i++) { - ipad[i] ^= HMAC_IPAD; - opad[i] ^= HMAC_OPAD; - } - - /* inner MD5 */ - MD5_Init(&ctx); - MD5_Update(&ctx, ipad, HMAC_INT_LEN); - MD5_Update(&ctx, dbuf, dlen); - MD5_Final((unsigned char *) hmacbuf, &ctx); - /* outer MD5 */ - MD5_Init(&ctx); - MD5_Update(&ctx, opad, HMAC_INT_LEN); - MD5_Update(&ctx, hmacbuf, MD5_LEN); - MD5_Final((unsigned char *) hmacbuf, &ctx); -} - -static void hmac_sha1(char *key, int klen, char *dbuf, int dlen, - char *hmacbuf) -{ - SHA_CTX ctx; - char ipad[HMAC_INT_LEN]; - char opad[HMAC_INT_LEN]; - unsigned char nkey[SHA_LEN]; - int i; - - /* Change key if longer than 64 bytes */ - if (klen > HMAC_INT_LEN) { - SHA_CTX kctx; - - SHA1_Init(&kctx); - SHA1_Update(&kctx, key, klen); - SHA1_Final(nkey, &kctx); - key = (char *) nkey; - klen = SHA_LEN; - } - - memset(ipad, '\0', sizeof(ipad)); - memset(opad, '\0', sizeof(opad)); - memcpy(ipad, key, klen); - memcpy(opad, key, klen); - - for (i = 0; i < HMAC_INT_LEN; i++) { - ipad[i] ^= HMAC_IPAD; - opad[i] ^= HMAC_OPAD; - } - - /* inner SHA */ - SHA1_Init(&ctx); - SHA1_Update(&ctx, ipad, HMAC_INT_LEN); - SHA1_Update(&ctx, dbuf, dlen); - SHA1_Final((unsigned char *) hmacbuf, &ctx); - /* outer SHA */ - SHA1_Init(&ctx); - SHA1_Update(&ctx, opad, HMAC_INT_LEN); - SHA1_Update(&ctx, hmacbuf, SHA_LEN); - SHA1_Final((unsigned char *) hmacbuf, &ctx); -} |