const BIGNUM *priv_key;
BIGNUM *r = NULL, *s = NULL, *X = NULL, *tmp = NULL, *tmp2 = NULL,
*k = NULL, *e = NULL;
+
+ BIGNUM *new_r = NULL, *new_s = NULL;
+
EC_POINT *C = NULL;
BN_CTX *ctx;
}
while (BN_is_zero(s));
- newsig->s = BN_dup(s);
- newsig->r = BN_dup(r);
- if (!newsig->s || !newsig->r) {
+ DSA_SIG_get0(&new_r, &new_s, newsig);
+ new_s = BN_dup(s);
+ new_r = BN_dup(r);
+ if (!new_s || !new_r) {
GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
BIGNUM *order;
BIGNUM *md = NULL, *e = NULL, *R = NULL, *v = NULL,
*z1 = NULL, *z2 = NULL;
+ BIGNUM *sig_s = NULL, *sig_r = NULL;
BIGNUM *X = NULL, *tmp = NULL;
EC_POINT *C = NULL;
const EC_POINT *pub_key = NULL;
goto err;
}
- if (BN_is_zero(sig->s) || BN_is_zero(sig->r) ||
- (BN_cmp(sig->s, order) >= 1) || (BN_cmp(sig->r, order) >= 1)) {
+ DSA_SIG_get0(&sig_r, &sig_s, sig);
+
+ if (BN_is_zero(sig_s) || BN_is_zero(sig_r) ||
+ (BN_cmp(sig_s, order) >= 1) || (BN_cmp(sig_r, order) >= 1)) {
GOSTerr(GOST_F_GOST_EC_VERIFY, GOST_R_SIGNATURE_PARTS_GREATER_THAN_Q);
goto err;
goto err;
}
v = BN_mod_inverse(v, e, order, ctx);
- if (!v || !BN_mod_mul(z1, sig->s, v, order, ctx)
- || !BN_sub(tmp, order, sig->r)
+ if (!v || !BN_mod_mul(z1, sig_s, v, order, ctx)
+ || !BN_sub(tmp, order, sig_r)
|| !BN_mod_mul(z2, tmp, v, order, ctx)) {
GOSTerr(GOST_F_GOST_EC_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
BN_print_fp(stderr, R);
fprintf(stderr, "\n");
#endif
- if (BN_cmp(R, sig->r) != 0) {
+ if (BN_cmp(R, sig_r) != 0) {
GOSTerr(GOST_F_GOST_EC_VERIFY, GOST_R_SIGNATURE_MISMATCH);
} else {
ok = 1;