diff options
Diffstat (limited to 'ks.c')
| -rw-r--r-- | ks.c | 19 |
1 files changed, 14 insertions, 5 deletions
@@ -620,6 +620,7 @@ hal_error_t hal_ks_fetch(hal_ks_t *ks, hal_error_t err = HAL_OK; hal_ks_block_t *block; + size_t k_der_len = 0; unsigned b; hal_ks_lock(); @@ -627,17 +628,18 @@ hal_error_t hal_ks_fetch(hal_ks_t *ks, if ((err = hal_ks_index_find(ks, &slot->name, &b, &slot->hint)) != HAL_OK || (err = hal_ks_block_test_owner(ks, b, slot->client, slot->session)) != HAL_OK || (err = hal_ks_block_read_cached(ks, b, &block)) != HAL_OK) - goto done; + goto unlock; if (hal_ks_block_get_type(block) != HAL_KS_BLOCK_TYPE_KEY) { err = HAL_ERROR_KEYSTORE_WRONG_BLOCK_TYPE; /* HAL_ERROR_KEY_NOT_FOUND */ - goto done; + goto unlock; } hal_ks_cache_mark_used(ks, block, b); hal_ks_key_block_t *k = &block->key; + k_der_len = k->der_len; slot->type = k->type; slot->curve = k->curve; slot->flags = k->flags; @@ -645,6 +647,15 @@ hal_error_t hal_ks_fetch(hal_ks_t *ks, if (der == NULL && der_len != NULL) *der_len = k->der_len; + if (der != NULL && k_der_len <= der_max) + memcpy(der, k->der, k_der_len); + + unlock: + hal_ks_unlock(); + + if (err != HAL_OK) + return err; + if (der != NULL) { uint8_t kek[KEK_LENGTH]; @@ -657,13 +668,11 @@ hal_error_t hal_ks_fetch(hal_ks_t *ks, *der_len = der_max; if ((err = hal_mkm_get_kek(kek, &kek_len, sizeof(kek))) == HAL_OK) - err = hal_aes_keyunwrap(NULL, kek, kek_len, k->der, k->der_len, der, der_len); + err = hal_aes_keyunwrap(NULL, kek, kek_len, der, k_der_len, der, der_len); memset(kek, 0, sizeof(kek)); } - done: - hal_ks_unlock(); return err; } |