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authorTheo de Raadt <deraadt@cvs.openbsd.org>2011-01-11 15:44:24 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2011-01-11 15:44:24 +0000
commit435025d175e2b2d41a07f2531200d4a785ef0b18 (patch)
tree326f7f69c239be4c415c975b9ab48117f7f4cbd6 /sys
parentb8adaa72672fc21a17c44baf5ab66efb66e8c6f1 (diff)
in AES_GMAC_Final(), explicitly clear the local buffer
ok mikeb
Diffstat (limited to 'sys')
-rw-r--r--sys/crypto/gmac.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/crypto/gmac.c b/sys/crypto/gmac.c
index dc85294850a..d90f2ceaf4a 100644
--- a/sys/crypto/gmac.c
+++ b/sys/crypto/gmac.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: gmac.c,v 1.2 2010/11/08 10:27:50 mikeb Exp $ */
+/* $OpenBSD: gmac.c,v 1.3 2011/01/11 15:44:23 deraadt Exp $ */
/*
* Copyright (c) 2010 Mike Belopuhov <mike@vantronix.net>
@@ -153,4 +153,5 @@ AES_GMAC_Final(uint8_t digest[GMAC_DIGEST_LEN], AES_GMAC_CTX *ctx)
rijndaelEncrypt(ctx->K, ctx->rounds, ctx->J, keystream);
for (i = 0; i < GMAC_DIGEST_LEN; i++)
digest[i] = ctx->ghash.S[i] ^ keystream[i];
+ explicit_bzero(keystream, sizeof(keystream));
}