diff options
Diffstat (limited to 'rsa.c')
| -rw-r--r-- | rsa.c | 17 |
1 files changed, 9 insertions, 8 deletions
@@ -197,7 +197,8 @@ static hal_error_t modexp(const hal_core_t *core, { hal_error_t err = HAL_OK; - if ((err = hal_core_check_name(&core, MODEXPS6_NAME)) != HAL_OK) + if (((err = hal_core_check_name(&core, MODEXPS6_NAME)) != HAL_OK) && + ((err = hal_core_check_name(&core, MODEXPA7_NAME)) != HAL_OK)) return err; assert(msg != NULL && exp != NULL && mod != NULL && res != NULL); @@ -697,7 +698,7 @@ hal_error_t hal_rsa_private_key_to_der(const hal_rsa_key_t * const key, { hal_error_t err = HAL_OK; - if (key == NULL || der_len == NULL || key->type != HAL_KEY_TYPE_RSA_PRIVATE) + if (key == NULL || key->type != HAL_KEY_TYPE_RSA_PRIVATE) return HAL_ERROR_BAD_ARGUMENTS; fp_int version[1] = INIT_FP_INT; @@ -706,9 +707,9 @@ hal_error_t hal_rsa_private_key_to_der(const hal_rsa_key_t * const key, * Calculate data length. */ - size_t vlen = 0; + size_t hlen = 0, vlen = 0; -#define _(x) { size_t i; if ((err = hal_asn1_encode_integer(x, NULL, &i, der_max - vlen)) != HAL_OK) return err; vlen += i; } +#define _(x) { size_t n; if ((err = hal_asn1_encode_integer(x, NULL, &n, der_max - vlen)) != HAL_OK) return err; vlen += n; } RSAPrivateKey_fields; #undef _ @@ -716,11 +717,11 @@ hal_error_t hal_rsa_private_key_to_der(const hal_rsa_key_t * const key, * Encode header. */ - if ((err = hal_asn1_encode_header(ASN1_SEQUENCE, vlen, der, der_len, der_max)) != HAL_OK) + if ((err = hal_asn1_encode_header(ASN1_SEQUENCE, vlen, der, &hlen, der_max)) != HAL_OK) return err; - const size_t hlen = *der_len; - *der_len += vlen; + if (der_len != NULL) + *der_len = hlen + vlen; if (der == NULL) return HAL_OK; @@ -731,7 +732,7 @@ hal_error_t hal_rsa_private_key_to_der(const hal_rsa_key_t * const key, der += hlen; -#define _(x) { size_t i; if ((err = hal_asn1_encode_integer(x, der, &i, vlen)) != HAL_OK) return err; der += i; vlen -= i; } +#define _(x) { size_t n; if ((err = hal_asn1_encode_integer(x, der, &n, vlen)) != HAL_OK) return err; der += n; vlen -= n; } RSAPrivateKey_fields; #undef _ |