C++ (Cpp) BN_cbs2unsigned示例

示例#1

文件： ecdsa_asn1.c 项目： tempbottle/ring

ECDSA_SIG *ECDSA_SIG_parse(CBS *cbs) {
  ECDSA_SIG *ret = ECDSA_SIG_new();
  if (ret == NULL) {
    return NULL;
  }
  CBS child;
  if (!CBS_get_asn1(cbs, &child, CBS_ASN1_SEQUENCE) ||
      !BN_cbs2unsigned(&child, ret->r) ||
      !BN_cbs2unsigned(&child, ret->s) ||
      CBS_len(&child) != 0) {
    OPENSSL_PUT_ERROR(ECDSA, ECDSA_R_BAD_SIGNATURE);
    ECDSA_SIG_free(ret);
    return NULL;
  }
  return ret;
}

示例#2

文件： rsa_asn1.c 项目： dconnolly/ring

static int parse_integer(CBS *cbs, BIGNUM **out) {
  assert(*out == NULL);
  *out = BN_new();
  if (*out == NULL) {
    return 0;
  }
  return BN_cbs2unsigned(cbs, *out);
}