Added GMAC wrapper functions around AES-GCM

2013-09-10 16:47:39 -07:00
parent 0ae966b350
commit d3db1a42de
3 changed files with 72 additions and 0 deletions
--- a/ctaocrypt/src/aes.c
+++ b/ctaocrypt/src/aes.c
@@ -2636,6 +2636,21 @@ int  AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
    return 0;
 }

+
+CYASSL_API void GmacSetKey(Gmac* gmac, const byte* key, word32 len)
+{
+    AesGcmSetKey(&gmac->aes, key, len);
+}
+
+
+CYASSL_API void GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz,
+                              const byte* authIn, word32 authInSz,
+                              byte* authTag, word32 authTagSz)
+{
+    AesGcmEncrypt(&gmac->aes, NULL, NULL, 0, iv, ivSz,
+                                         authTag, authTagSz, authIn, authInSz);
+}
+
 #endif /* HAVE_AESGCM */

 #ifdef HAVE_AESCCM