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sm2 test vector

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This commit is contained in:
Zhi Guan
2016-05-02 17:56:14 +02:00
parent d8072491bc
commit addcac4896
34 changed files with 1245 additions and 3023 deletions
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30
crypto/sm2/sm2_sign.c
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@@ -58,7 +58,6 @@
#include <openssl/rand.h>
#include <openssl/sm2.h>
//FIXME: ECDSAerr()
/* k in [1, n-1], (x, y) = kG */
static int sm2_sign_setup(EC_KEY *ec_key, BN_CTX *ctx_in, BIGNUM **kp, BIGNUM **xp)
@@ -69,7 +68,7 @@ static int sm2_sign_setup(EC_KEY *ec_key, BN_CTX *ctx_in, BIGNUM **kp, BIGNUM **
BIGNUM *k = NULL;
BIGNUM *x = NULL;
BIGNUM *order = NULL;
EC_POINT *point=NULL;
EC_POINT *point = NULL;
if (ec_key == NULL || (ec_group = EC_KEY_get0_group(ec_key)) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);
@@ -89,7 +88,6 @@ static int sm2_sign_setup(EC_KEY *ec_key, BN_CTX *ctx_in, BIGNUM **kp, BIGNUM **
k = BN_new();
x = BN_new();
order = BN_new();
if (!k || !x || !order) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
goto err;
@@ -133,7 +131,8 @@ static int sm2_sign_setup(EC_KEY *ec_key, BN_CTX *ctx_in, BIGNUM **kp, BIGNUM **
goto err;
}
}
//FIXME: do we need this?
if (!BN_nnmod(x, x, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
goto err;
@@ -206,17 +205,22 @@ static ECDSA_SIG *sm2_do_sign(const unsigned char *dgst, int dgst_len,
/* convert dgst to e */
i = BN_num_bits(order);
#if 0
if (8 * dgst_len > i) {
dgst_len = (i + 7)/8;
}
#endif
if (!BN_bin2bn(dgst, dgst_len, e)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
#if 0
if ((8 * dgst_len > i) && !BN_rshift(e, e, 8 - (i & 0x7))) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
#endif
do {
/* use or compute k and (kG).x */
@@ -234,11 +238,14 @@ static ECDSA_SIG *sm2_do_sign(const unsigned char *dgst, int dgst_len,
}
}
/* r = e + x (mod n) */
if (!BN_mod_add(ret->r, ret->r, e, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
if (!BN_mod_add(bn, ret->r, ck, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
@@ -266,6 +273,7 @@ static ECDSA_SIG *sm2_do_sign(const unsigned char *dgst, int dgst_len,
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
if (!BN_mod_mul(bn, ret->r, priv_key, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
@@ -309,7 +317,7 @@ err:
int sm2_do_verify(const unsigned char *dgst, int dgstlen,
const ECDSA_SIG *sig, EC_KEY *ec_key)
{
int ret = -1;
int ret = SM2_VERIFY_INNER_ERROR;
const EC_GROUP *ec_group;
const EC_POINT *pub_key;
EC_POINT *point = NULL;
@@ -366,17 +374,21 @@ int sm2_do_verify(const unsigned char *dgst, int dgstlen,
/* convert digest to e */
i = BN_num_bits(order);
#if 0
if (8 * dgstlen > i) {
dgstlen = (i + 7)/8;
}
#endif
if (!BN_bin2bn(dgst, dgstlen, e)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
#if 0
if ((8 * dgstlen > i) && !BN_rshift(e, e, 8 - (i & 0x7))) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
#endif
/* compute (x, y) = sG + tP, P is pub_key */
if (!(point = EC_POINT_new(ec_group))) {
@@ -408,8 +420,12 @@ int sm2_do_verify(const unsigned char *dgst, int dgstlen,
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
ret = (BN_ucmp(t, sig->r) == 0);
if (BN_ucmp(t, sig->r) == 0) {
ret = SM2_VERIFY_SUCCESS;
} else {
ret = SM2_VERIFY_FAILED;
}
err:
if (point) EC_POINT_free(point);
if (order) BN_free(order);