aboutsummaryrefslogtreecommitdiffstats
path: root/lib/crypto
diff options
context:
space:
mode:
Diffstat (limited to 'lib/crypto')
-rw-r--r--lib/crypto/c_src/Makefile.in3
-rw-r--r--lib/crypto/c_src/crypto.c210
-rw-r--r--lib/crypto/c_src/srp.c209
-rw-r--r--lib/crypto/c_src/srp.h10
4 files changed, 222 insertions, 210 deletions
diff --git a/lib/crypto/c_src/Makefile.in b/lib/crypto/c_src/Makefile.in
index 4ff080a327..a937f65726 100644
--- a/lib/crypto/c_src/Makefile.in
+++ b/lib/crypto/c_src/Makefile.in
@@ -83,7 +83,8 @@ CRYPTO_OBJS = $(OBJDIR)/crypto$(TYPEMARKER).o \
$(OBJDIR)/hash$(TYPEMARKER).o \
$(OBJDIR)/hmac$(TYPEMARKER).o \
$(OBJDIR)/rc4$(TYPEMARKER).o \
- $(OBJDIR)/rsa$(TYPEMARKER).o
+ $(OBJDIR)/rsa$(TYPEMARKER).o \
+ $(OBJDIR)/srp$(TYPEMARKER).o
CALLBACK_OBJS = $(OBJDIR)/crypto_callback$(TYPEMARKER).o
NIF_MAKEFILE = $(PRIVDIR)/Makefile
CRYPTO_STATIC_OBJS = $(OBJDIR)/crypto_static$(TYPEMARKER).o\
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 3d0c8a63b6..6389294458 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -36,6 +36,7 @@
#include "hmac.h"
#include "rc4.h"
#include "rsa.h"
+#include "srp.h"
/* NIF interface declarations */
static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info);
@@ -61,9 +62,6 @@ static ERL_NIF_TERM pkey_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
static ERL_NIF_TERM pkey_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM privkey_to_pubkey_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM srp_value_B_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM srp_user_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM srp_host_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM ecdh_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -1576,212 +1574,6 @@ static int get_dss_public_key(ErlNifEnv* env, ERL_NIF_TERM key, DSA *dsa)
return 1;
}
-static ERL_NIF_TERM srp_value_B_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Multiplier, Verifier, Generator, Exponent, Prime) */
- BIGNUM *bn_verifier = NULL;
- BIGNUM *bn_exponent = NULL, *bn_generator = NULL, *bn_prime = NULL, *bn_multiplier = NULL, *bn_result;
- BN_CTX *bn_ctx;
- unsigned char* ptr;
- unsigned dlen;
- ERL_NIF_TERM ret;
-
- CHECK_NO_FIPS_MODE();
-
- if (!get_bn_from_bin(env, argv[0], &bn_multiplier)
- || !get_bn_from_bin(env, argv[1], &bn_verifier)
- || !get_bn_from_bin(env, argv[2], &bn_generator)
- || !get_bn_from_bin(env, argv[3], &bn_exponent)
- || !get_bn_from_bin(env, argv[4], &bn_prime)) {
- if (bn_multiplier) BN_free(bn_multiplier);
- if (bn_verifier) BN_free(bn_verifier);
- if (bn_generator) BN_free(bn_generator);
- if (bn_exponent) BN_free(bn_exponent);
- if (bn_prime) BN_free(bn_prime);
- return enif_make_badarg(env);
- }
-
- bn_result = BN_new();
- bn_ctx = BN_CTX_new();
-
- /* B = k*v + g^b % N */
-
- /* k * v */
- BN_mod_mul(bn_multiplier, bn_multiplier, bn_verifier, bn_prime, bn_ctx);
-
- /* g^b % N */
- BN_mod_exp(bn_result, bn_generator, bn_exponent, bn_prime, bn_ctx);
-
- /* k*v + g^b % N */
- BN_mod_add(bn_result, bn_result, bn_multiplier, bn_prime, bn_ctx);
-
- /* check that B % N != 0, reuse bn_multiplier */
- BN_nnmod(bn_multiplier, bn_result, bn_prime, bn_ctx);
- if (BN_is_zero(bn_multiplier)) {
- ret = atom_error;
- } else {
- dlen = BN_num_bytes(bn_result);
- ptr = enif_make_new_binary(env, dlen, &ret);
- BN_bn2bin(bn_result, ptr);
- }
- BN_free(bn_result);
- BN_CTX_free(bn_ctx);
- BN_free(bn_prime);
- BN_free(bn_generator);
- BN_free(bn_multiplier);
- BN_free(bn_exponent);
- BN_free(bn_verifier);
- return ret;
-}
-
-static ERL_NIF_TERM srp_user_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (a, u, B, Multiplier, Prime, Exponent, Generator) */
-/*
- <premaster secret> = (B - (k * g^x)) ^ (a + (u * x)) % N
-*/
- BIGNUM *bn_exponent = NULL, *bn_a = NULL;
- BIGNUM *bn_u = NULL, *bn_multiplier = NULL, *bn_exp2,
- *bn_base, *bn_prime = NULL, *bn_generator = NULL,
- *bn_B = NULL, *bn_result;
- BN_CTX *bn_ctx;
- unsigned char* ptr;
- unsigned dlen;
- ERL_NIF_TERM ret;
-
- CHECK_NO_FIPS_MODE();
-
- if (!get_bn_from_bin(env, argv[0], &bn_a)
- || !get_bn_from_bin(env, argv[1], &bn_u)
- || !get_bn_from_bin(env, argv[2], &bn_B)
- || !get_bn_from_bin(env, argv[3], &bn_multiplier)
- || !get_bn_from_bin(env, argv[4], &bn_generator)
- || !get_bn_from_bin(env, argv[5], &bn_exponent)
- || !get_bn_from_bin(env, argv[6], &bn_prime))
- {
- if (bn_exponent) BN_free(bn_exponent);
- if (bn_a) BN_free(bn_a);
- if (bn_u) BN_free(bn_u);
- if (bn_B) BN_free(bn_B);
- if (bn_multiplier) BN_free(bn_multiplier);
- if (bn_generator) BN_free(bn_generator);
- if (bn_prime) BN_free(bn_prime);
- return enif_make_badarg(env);
- }
-
- bn_ctx = BN_CTX_new();
- bn_result = BN_new();
-
- /* check that B % N != 0 */
- BN_nnmod(bn_result, bn_B, bn_prime, bn_ctx);
- if (BN_is_zero(bn_result)) {
- BN_free(bn_exponent);
- BN_free(bn_a);
- BN_free(bn_generator);
- BN_free(bn_prime);
- BN_free(bn_u);
- BN_free(bn_B);
- BN_CTX_free(bn_ctx);
-
- return atom_error;
- }
-
- /* (B - (k * g^x)) */
- bn_base = BN_new();
- BN_mod_exp(bn_result, bn_generator, bn_exponent, bn_prime, bn_ctx);
- BN_mod_mul(bn_result, bn_multiplier, bn_result, bn_prime, bn_ctx);
- BN_mod_sub(bn_base, bn_B, bn_result, bn_prime, bn_ctx);
-
- /* a + (u * x) */
- bn_exp2 = BN_new();
- BN_mul(bn_result, bn_u, bn_exponent, bn_ctx);
- BN_add(bn_exp2, bn_a, bn_result);
-
- /* (B - (k * g^x)) ^ (a + (u * x)) % N */
- BN_mod_exp(bn_result, bn_base, bn_exp2, bn_prime, bn_ctx);
-
- dlen = BN_num_bytes(bn_result);
- ptr = enif_make_new_binary(env, dlen, &ret);
- BN_bn2bin(bn_result, ptr);
- BN_free(bn_result);
- BN_CTX_free(bn_ctx);
-
- BN_free(bn_multiplier);
- BN_free(bn_exp2);
- BN_free(bn_u);
- BN_free(bn_exponent);
- BN_free(bn_a);
- BN_free(bn_B);
- BN_free(bn_base);
- BN_free(bn_generator);
- BN_free(bn_prime);
- return ret;
-}
-
-static ERL_NIF_TERM srp_host_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Verifier, b, u, A, Prime) */
-/*
- <premaster secret> = (A * v^u) ^ b % N
-*/
- BIGNUM *bn_b = NULL, *bn_verifier = NULL;
- BIGNUM *bn_prime = NULL, *bn_A = NULL, *bn_u = NULL, *bn_base, *bn_result;
- BN_CTX *bn_ctx;
- unsigned char* ptr;
- unsigned dlen;
- ERL_NIF_TERM ret;
-
- CHECK_NO_FIPS_MODE();
-
- if (!get_bn_from_bin(env, argv[0], &bn_verifier)
- || !get_bn_from_bin(env, argv[1], &bn_b)
- || !get_bn_from_bin(env, argv[2], &bn_u)
- || !get_bn_from_bin(env, argv[3], &bn_A)
- || !get_bn_from_bin(env, argv[4], &bn_prime))
- {
- if (bn_verifier) BN_free(bn_verifier);
- if (bn_b) BN_free(bn_b);
- if (bn_u) BN_free(bn_u);
- if (bn_A) BN_free(bn_A);
- if (bn_prime) BN_free(bn_prime);
- return enif_make_badarg(env);
- }
-
- bn_ctx = BN_CTX_new();
- bn_result = BN_new();
-
- /* check that A % N != 0 */
- BN_nnmod(bn_result, bn_A, bn_prime, bn_ctx);
- if (BN_is_zero(bn_result)) {
- BN_free(bn_b);
- BN_free(bn_verifier);
- BN_free(bn_prime);
- BN_free(bn_A);
- BN_CTX_free(bn_ctx);
-
- return atom_error;
- }
-
- /* (A * v^u) */
- bn_base = BN_new();
- BN_mod_exp(bn_base, bn_verifier, bn_u, bn_prime, bn_ctx);
- BN_mod_mul(bn_base, bn_A, bn_base, bn_prime, bn_ctx);
-
- /* (A * v^u) ^ b % N */
- BN_mod_exp(bn_result, bn_base, bn_b, bn_prime, bn_ctx);
-
- dlen = BN_num_bytes(bn_result);
- ptr = enif_make_new_binary(env, dlen, &ret);
- BN_bn2bin(bn_result, ptr);
- BN_free(bn_result);
- BN_CTX_free(bn_ctx);
-
- BN_free(bn_u);
- BN_free(bn_base);
- BN_free(bn_verifier);
- BN_free(bn_prime);
- BN_free(bn_A);
- BN_free(bn_b);
- return ret;
-}
-
#if defined(HAVE_EC)
static EC_KEY* ec_key_new(ErlNifEnv* env, ERL_NIF_TERM curve_arg)
{
diff --git a/lib/crypto/c_src/srp.c b/lib/crypto/c_src/srp.c
new file mode 100644
index 0000000000..fe2695be96
--- /dev/null
+++ b/lib/crypto/c_src/srp.c
@@ -0,0 +1,209 @@
+#include "srp.h"
+#include "bn.h"
+
+ERL_NIF_TERM srp_value_B_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Multiplier, Verifier, Generator, Exponent, Prime) */
+ BIGNUM *bn_verifier = NULL;
+ BIGNUM *bn_exponent = NULL, *bn_generator = NULL, *bn_prime = NULL, *bn_multiplier = NULL, *bn_result;
+ BN_CTX *bn_ctx;
+ unsigned char* ptr;
+ unsigned dlen;
+ ERL_NIF_TERM ret;
+
+ CHECK_NO_FIPS_MODE();
+
+ if (!get_bn_from_bin(env, argv[0], &bn_multiplier)
+ || !get_bn_from_bin(env, argv[1], &bn_verifier)
+ || !get_bn_from_bin(env, argv[2], &bn_generator)
+ || !get_bn_from_bin(env, argv[3], &bn_exponent)
+ || !get_bn_from_bin(env, argv[4], &bn_prime)) {
+ if (bn_multiplier) BN_free(bn_multiplier);
+ if (bn_verifier) BN_free(bn_verifier);
+ if (bn_generator) BN_free(bn_generator);
+ if (bn_exponent) BN_free(bn_exponent);
+ if (bn_prime) BN_free(bn_prime);
+ return enif_make_badarg(env);
+ }
+
+ bn_result = BN_new();
+ bn_ctx = BN_CTX_new();
+
+ /* B = k*v + g^b % N */
+
+ /* k * v */
+ BN_mod_mul(bn_multiplier, bn_multiplier, bn_verifier, bn_prime, bn_ctx);
+
+ /* g^b % N */
+ BN_mod_exp(bn_result, bn_generator, bn_exponent, bn_prime, bn_ctx);
+
+ /* k*v + g^b % N */
+ BN_mod_add(bn_result, bn_result, bn_multiplier, bn_prime, bn_ctx);
+
+ /* check that B % N != 0, reuse bn_multiplier */
+ BN_nnmod(bn_multiplier, bn_result, bn_prime, bn_ctx);
+ if (BN_is_zero(bn_multiplier)) {
+ ret = atom_error;
+ } else {
+ dlen = BN_num_bytes(bn_result);
+ ptr = enif_make_new_binary(env, dlen, &ret);
+ BN_bn2bin(bn_result, ptr);
+ }
+ BN_free(bn_result);
+ BN_CTX_free(bn_ctx);
+ BN_free(bn_prime);
+ BN_free(bn_generator);
+ BN_free(bn_multiplier);
+ BN_free(bn_exponent);
+ BN_free(bn_verifier);
+ return ret;
+}
+
+ERL_NIF_TERM srp_user_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (a, u, B, Multiplier, Prime, Exponent, Generator) */
+/*
+ <premaster secret> = (B - (k * g^x)) ^ (a + (u * x)) % N
+*/
+ BIGNUM *bn_exponent = NULL, *bn_a = NULL;
+ BIGNUM *bn_u = NULL, *bn_multiplier = NULL, *bn_exp2,
+ *bn_base, *bn_prime = NULL, *bn_generator = NULL,
+ *bn_B = NULL, *bn_result;
+ BN_CTX *bn_ctx;
+ unsigned char* ptr;
+ unsigned dlen;
+ ERL_NIF_TERM ret;
+
+ CHECK_NO_FIPS_MODE();
+
+ if (!get_bn_from_bin(env, argv[0], &bn_a)
+ || !get_bn_from_bin(env, argv[1], &bn_u)
+ || !get_bn_from_bin(env, argv[2], &bn_B)
+ || !get_bn_from_bin(env, argv[3], &bn_multiplier)
+ || !get_bn_from_bin(env, argv[4], &bn_generator)
+ || !get_bn_from_bin(env, argv[5], &bn_exponent)
+ || !get_bn_from_bin(env, argv[6], &bn_prime))
+ {
+ if (bn_exponent) BN_free(bn_exponent);
+ if (bn_a) BN_free(bn_a);
+ if (bn_u) BN_free(bn_u);
+ if (bn_B) BN_free(bn_B);
+ if (bn_multiplier) BN_free(bn_multiplier);
+ if (bn_generator) BN_free(bn_generator);
+ if (bn_prime) BN_free(bn_prime);
+ return enif_make_badarg(env);
+ }
+
+ bn_ctx = BN_CTX_new();
+ bn_result = BN_new();
+
+ /* check that B % N != 0 */
+ BN_nnmod(bn_result, bn_B, bn_prime, bn_ctx);
+ if (BN_is_zero(bn_result)) {
+ BN_free(bn_exponent);
+ BN_free(bn_a);
+ BN_free(bn_generator);
+ BN_free(bn_prime);
+ BN_free(bn_u);
+ BN_free(bn_B);
+ BN_CTX_free(bn_ctx);
+
+ return atom_error;
+ }
+
+ /* (B - (k * g^x)) */
+ bn_base = BN_new();
+ BN_mod_exp(bn_result, bn_generator, bn_exponent, bn_prime, bn_ctx);
+ BN_mod_mul(bn_result, bn_multiplier, bn_result, bn_prime, bn_ctx);
+ BN_mod_sub(bn_base, bn_B, bn_result, bn_prime, bn_ctx);
+
+ /* a + (u * x) */
+ bn_exp2 = BN_new();
+ BN_mul(bn_result, bn_u, bn_exponent, bn_ctx);
+ BN_add(bn_exp2, bn_a, bn_result);
+
+ /* (B - (k * g^x)) ^ (a + (u * x)) % N */
+ BN_mod_exp(bn_result, bn_base, bn_exp2, bn_prime, bn_ctx);
+
+ dlen = BN_num_bytes(bn_result);
+ ptr = enif_make_new_binary(env, dlen, &ret);
+ BN_bn2bin(bn_result, ptr);
+ BN_free(bn_result);
+ BN_CTX_free(bn_ctx);
+
+ BN_free(bn_multiplier);
+ BN_free(bn_exp2);
+ BN_free(bn_u);
+ BN_free(bn_exponent);
+ BN_free(bn_a);
+ BN_free(bn_B);
+ BN_free(bn_base);
+ BN_free(bn_generator);
+ BN_free(bn_prime);
+ return ret;
+}
+
+ERL_NIF_TERM srp_host_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Verifier, b, u, A, Prime) */
+/*
+ <premaster secret> = (A * v^u) ^ b % N
+*/
+ BIGNUM *bn_b = NULL, *bn_verifier = NULL;
+ BIGNUM *bn_prime = NULL, *bn_A = NULL, *bn_u = NULL, *bn_base, *bn_result;
+ BN_CTX *bn_ctx;
+ unsigned char* ptr;
+ unsigned dlen;
+ ERL_NIF_TERM ret;
+
+ CHECK_NO_FIPS_MODE();
+
+ if (!get_bn_from_bin(env, argv[0], &bn_verifier)
+ || !get_bn_from_bin(env, argv[1], &bn_b)
+ || !get_bn_from_bin(env, argv[2], &bn_u)
+ || !get_bn_from_bin(env, argv[3], &bn_A)
+ || !get_bn_from_bin(env, argv[4], &bn_prime))
+ {
+ if (bn_verifier) BN_free(bn_verifier);
+ if (bn_b) BN_free(bn_b);
+ if (bn_u) BN_free(bn_u);
+ if (bn_A) BN_free(bn_A);
+ if (bn_prime) BN_free(bn_prime);
+ return enif_make_badarg(env);
+ }
+
+ bn_ctx = BN_CTX_new();
+ bn_result = BN_new();
+
+ /* check that A % N != 0 */
+ BN_nnmod(bn_result, bn_A, bn_prime, bn_ctx);
+ if (BN_is_zero(bn_result)) {
+ BN_free(bn_b);
+ BN_free(bn_verifier);
+ BN_free(bn_prime);
+ BN_free(bn_A);
+ BN_CTX_free(bn_ctx);
+
+ return atom_error;
+ }
+
+ /* (A * v^u) */
+ bn_base = BN_new();
+ BN_mod_exp(bn_base, bn_verifier, bn_u, bn_prime, bn_ctx);
+ BN_mod_mul(bn_base, bn_A, bn_base, bn_prime, bn_ctx);
+
+ /* (A * v^u) ^ b % N */
+ BN_mod_exp(bn_result, bn_base, bn_b, bn_prime, bn_ctx);
+
+ dlen = BN_num_bytes(bn_result);
+ ptr = enif_make_new_binary(env, dlen, &ret);
+ BN_bn2bin(bn_result, ptr);
+ BN_free(bn_result);
+ BN_CTX_free(bn_ctx);
+
+ BN_free(bn_u);
+ BN_free(bn_base);
+ BN_free(bn_verifier);
+ BN_free(bn_prime);
+ BN_free(bn_A);
+ BN_free(bn_b);
+ return ret;
+}
+
diff --git a/lib/crypto/c_src/srp.h b/lib/crypto/c_src/srp.h
new file mode 100644
index 0000000000..0ba8549c27
--- /dev/null
+++ b/lib/crypto/c_src/srp.h
@@ -0,0 +1,10 @@
+#ifndef E_SRP_H__
+#define E_SRP_H__ 1
+
+#include "common.h"
+
+ERL_NIF_TERM srp_value_B_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+ERL_NIF_TERM srp_user_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+ERL_NIF_TERM srp_host_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+
+#endif /* E_SRP_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 18:06:38 +0000