From: Neil Horman <nhorman@tuxdriver.com>
To: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: nhorman@tuxdriver.com, herbert@gondor.apana.org.au, davem@davemloft.net
Subject: [PATCH] crypto: obscure state information on free
Date: Mon, 11 Aug 2008 16:26:07 -0400 [thread overview]
Message-ID: <20080811202607.GA11527@hmsreliant.think-freely.org> (raw)
Patch to obscure state information on free in prng code. Keeps prying eyes from
sifting through your trash :)
Regards
Neil
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
prng.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/crypto/prng.c b/crypto/prng.c
index b203093..fc6fa28 100644
--- a/crypto/prng.c
+++ b/crypto/prng.c
@@ -296,6 +296,7 @@ EXPORT_SYMBOL_GPL(alloc_prng_context);
void free_prng_context(struct prng_context *ctx)
{
crypto_free_cipher(ctx->tfm);
+ memset(ctx, 0, sizeof(struct prng_context));
kfree(ctx);
}
EXPORT_SYMBOL_GPL(free_prng_context);
--
/****************************************************
* Neil Horman <nhorman@tuxdriver.com>
* Software Engineer, Red Hat
****************************************************/
next reply other threads:[~2008-08-11 20:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-11 20:26 Neil Horman [this message]
2008-08-14 11:51 ` Herbert Xu
2008-08-14 12:21 ` Neil Horman
2008-08-17 12:20 ` Herbert Xu
2008-08-17 12:23 ` Herbert Xu
2008-08-14 12:23 ` crypto: skcipher - Use RNG interface instead of get_random_bytes Herbert Xu
2008-08-14 15:28 ` Neil Horman
2008-08-17 12:22 ` Herbert Xu
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