From: Todor Colov <todorcolov@gmail.com>
To: linux-crypto@vger.kernel.org
Subject: Re: IV is not send by kernel (ESP packet)
Date: Tue, 3 Jun 2014 06:23:09 +0000 (UTC) [thread overview]
Message-ID: <loom.20140603T081949-176@post.gmane.org> (raw)
In-Reply-To: 51ADDD52.8010404@wasko.pl
Hi Grzegorz,
IV generator "eseqiv" adds one block more with "seq of SA" to the "src"
packet which is being encrypted with "IV salt" and send as IV.
Change your default IV generation method to "chainiv" and you'll solve the
issue.Proposed patch is something like:
--- linux-3.14.4/crypto/cbc.c 2014-05-13 14:33:14.000000000 +0300
+++ linux-3.14.4-mod/crypto/cbc.c 2014-06-01 09:26:18.311525275 +0300
@@ -255,6 +255,7 @@
inst->alg.cra_blkcipher.setkey = crypto_cbc_setkey;
inst->alg.cra_blkcipher.encrypt = crypto_cbc_encrypt;
inst->alg.cra_blkcipher.decrypt = crypto_cbc_decrypt;
+ inst->alg.cra_blkcipher.geniv = "chainiv";
out_put_alg:
crypto_mod_put(alg);
Regads,
Todor
prev parent reply other threads:[~2014-06-03 6:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-04 12:28 IV is not send by kernel (ESP packet) Grzegorz Głowacki
2014-06-03 6:23 ` Todor Colov [this message]
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