diff options
Diffstat (limited to 'lib/crypto/c_src/crypto.c')
| -rw-r--r-- | lib/crypto/c_src/crypto.c | 58 |
1 files changed, 28 insertions, 30 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index 83772d9023..c781ccb302 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -43,7 +43,6 @@ #include <openssl/aes.h> #include <openssl/md5.h> #include <openssl/md4.h> -#include <openssl/md2.h> #include <openssl/sha.h> #include <openssl/bn.h> #include <openssl/objects.h> @@ -268,7 +267,6 @@ 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_md2; static ERL_NIF_TERM atom_ripemd160; static ERL_NIF_TERM atom_error; static ERL_NIF_TERM atom_rsa_pkcs1_padding; @@ -339,7 +337,6 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) atom_false = enif_make_atom(env,"false"); atom_sha = enif_make_atom(env,"sha"); atom_md5 = enif_make_atom(env,"md5"); - atom_md2 = enif_make_atom(env,"md2"); 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"); @@ -1050,28 +1047,16 @@ static ERL_NIF_TERM dss_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv return(i > 0) ? atom_true : atom_false; } -struct hash_def { - int type; - unsigned int m_len; - unsigned char * (*func) (const unsigned char *d, size_t n, unsigned char *md); -}; - -static const struct hash_def md2_hash_def = { NID_md2, MD2_DIGEST_LENGTH, &MD2}; -static const struct hash_def md5_hash_def = { NID_md5, MD5_DIGEST_LENGTH, &MD5}; -static const struct hash_def sha1_hash_def = { NID_sha1, SHA_DIGEST_LENGTH, &SHA1}; - 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; + int i, is_sha; RSA* rsa = RSA_new(); - const struct hash_def *hash_def = NULL; - if (argv[0] == atom_sha) hash_def = &sha1_hash_def; - else if (argv[0] == atom_md5) hash_def = &md5_hash_def; - else if (argv[0] == atom_md2) hash_def = &md2_hash_def; + 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) @@ -1085,9 +1070,16 @@ static ERL_NIF_TERM rsa_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv ret = enif_make_badarg(env); } else { - (void) *hash_def->func(data_bin.data+4, data_bin.size-4, hmacbuf); - i = RSA_verify(hash_def->type, hmacbuf, hash_def->m_len, - sign_bin.data+4, sign_bin.size-4, rsa); + 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); @@ -1229,12 +1221,10 @@ static ERL_NIF_TERM rsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar unsigned char hmacbuf[SHA_DIGEST_LENGTH]; unsigned rsa_s_len; RSA *rsa = RSA_new(); - int i; - const struct hash_def *hash_def = NULL; + int i, is_sha; - if (argv[0] == atom_sha) hash_def = &sha1_hash_def; - else if (argv[0] == atom_md5) hash_def = &md5_hash_def; - else if (argv[0] == atom_md2) hash_def = &md2_hash_def; + 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) @@ -1250,10 +1240,18 @@ static ERL_NIF_TERM rsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar return enif_make_badarg(env); } enif_alloc_binary(RSA_size(rsa), &ret_bin); - (void) *hash_def->func(data_bin.data+4, data_bin.size-4, hmacbuf); - ERL_VALGRIND_ASSERT_MEM_DEFINED(hmacbuf, hash_def->m_len); - i = RSA_sign(hash_def->type, hmacbuf, hash_def->m_len, - ret_bin.data, &rsa_s_len, rsa); + 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); |