check for IV at AEAD API layer

heimdal · Dec 17, 2015 · 87c5a62 · 87c5a62
1 parent b3cd31b
commit 87c5a62
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/krb5/crypto-aead.c b/lib/krb5/crypto-aead.c
@@ -58,6 +58,10 @@ _krb5_evp_cipher_aead(krb5_context context,
     EVP_CIPHER_CTX *c;
     int i, outlen;
 
+    /* AEAD etypes require initialization vectors */
+    if (ivec == NULL)
+	return KRB5_PROG_ETYPE_NOSUPP;
+
     headersz = et->confoundersize;
     trailersz = et->blocksize;