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-rw-r--r--src/libstrongswan/plugins/openssl/openssl_gcm.c10
-rw-r--r--src/libstrongswan/plugins/openssl/openssl_gcm.h4
2 files changed, 12 insertions, 2 deletions
diff --git a/src/libstrongswan/plugins/openssl/openssl_gcm.c b/src/libstrongswan/plugins/openssl/openssl_gcm.c
index 842111bd3..147e4afb4 100644
--- a/src/libstrongswan/plugins/openssl/openssl_gcm.c
+++ b/src/libstrongswan/plugins/openssl/openssl_gcm.c
@@ -202,7 +202,8 @@ METHOD(aead_t, destroy, void,
/*
* Described in header
*/
-aead_t *openssl_gcm_create(encryption_algorithm_t algo, size_t key_size)
+aead_t *openssl_gcm_create(encryption_algorithm_t algo,
+ size_t key_size, size_t salt_size)
{
private_aead_t *this;
@@ -236,6 +237,13 @@ aead_t *openssl_gcm_create(encryption_algorithm_t algo, size_t key_size)
return NULL;
}
+ if (salt_size && salt_size != SALT_LEN)
+ {
+ /* currently not supported */
+ free(this);
+ return NULL;
+ }
+
switch (algo)
{
case ENCR_AES_GCM_ICV8:
diff --git a/src/libstrongswan/plugins/openssl/openssl_gcm.h b/src/libstrongswan/plugins/openssl/openssl_gcm.h
index 12d2e8ab6..4ae268bd6 100644
--- a/src/libstrongswan/plugins/openssl/openssl_gcm.h
+++ b/src/libstrongswan/plugins/openssl/openssl_gcm.h
@@ -30,8 +30,10 @@
*
* @param algo algorithm to implement
* @param key_size key size in bytes
+ * @param salt_size size of implicit salt length
* @return aead_t object, NULL if not supported
*/
-aead_t *openssl_gcm_create(encryption_algorithm_t algo, size_t key_size);
+aead_t *openssl_gcm_create(encryption_algorithm_t algo, size_t key_size,
+ size_t salt_size);
#endif /** OPENSSL_GCM_H_ @}*/