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Diffstat (limited to 'rsa.c')
-rw-r--r--rsa.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/rsa.c b/rsa.c
index 7269aa9..c8a1479 100644
--- a/rsa.c
+++ b/rsa.c
@@ -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 _