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From: Joel Fernandes <joelf@ti.com>
To: <jussi.kivilinna@mbnet.fi>
Cc: Linux Crypto Mailing List <linux-crypto@vger.kernel.org>
Subject: [RFC] Unaligned CTR mode tests in crypto/testmgr.h
Date: Tue, 29 Oct 2013 19:11:23 -0500	[thread overview]
Message-ID: <52704EAB.5000308@ti.com> (raw)

Hi,

Some tests such as test 5 in AES CTR mode in crypto/testmgr.h have a unaligned
input buffer size such as 499 which is not aligned to any > 0 power of 2.

Due to this, omap-aes driver, and I think atmel-aes too error out when
encryption is requested for these buffers.

pr_err("request size is not exact amount of AES blocks\n") or a similar message.

Is this failure considered a bug? How do we fix it?

How were the result output vectors generated, did you use 0 padding? Do we 0 pad
the inputs to align in these cases to get correct results?

thanks,

-Joel

             reply	other threads:[~2013-10-30  0:11 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-30  0:11 Joel Fernandes [this message]
2013-10-30  1:54 ` [RFC] Unaligned CTR mode tests in crypto/testmgr.h Herbert Xu
2013-10-30 18:34   ` Fernandes, Joel
2013-10-30 11:09 ` Jussi Kivilinna
2013-10-30 21:06   ` Joel Fernandes
2013-10-31  8:40     ` Jussi Kivilinna

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