Date: Wed, 18 Jul 2007 12:39:47 -0600 From: Richard Hodges <rh@matriplex.com> To: Stefan Farfeleder <stefan@fafoe.narf.at> Cc: freebsd-hackers@freebsd.org Subject: Re: Rijndael sanity check? Message-ID: <200707181239.52037.rh@matriplex.com> In-Reply-To: <20070718182657.GG975@lizard.fafoe.narf.at> References: <200707181206.52765.rh@matriplex.com> <20070718182657.GG975@lizard.fafoe.narf.at>
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On Wednesday 18 July 2007 12:26 pm, Stefan Farfeleder wrote: > On Wed, Jul 18, 2007 at 12:06:35PM -0600, Richard Hodges wrote: > > > ./aes_test > > > > Using key: 2b 7e 15 16 28 ae d2 a6 ab f7 15 88 09 cf 4f 3c > > > > 920F0CE0A9A96BB9D8416962BDBBAA7C > > decr: 92 0f 0c e0 a9 a9 6b b9 d8 41 69 62 bd bb aa 7c > > encr: c9 3d 42 18 70 34 ce a8 67 1b 88 43 10 00 d1 8c > > ^^ > > > c74601001001000000000054006b51FF > > decr: c7 46 01 00 10 01 00 00 00 00 00 54 00 6b 51 ff > > encr: c9 3d 42 18 70 34 ce a8 67 1b 88 43 10 a2 d1 8c > > ^^ > It seems to be different. Good eye, and thanks! It did not occur to me that the difference would be so subtle as three bits, as I normally expect encryption to propagate even small bit differences across the entire block. Oops! Bad assumption! Now it looks like I have a bug to find in my own code, but that is so much better than suspecting a problem somewhere else! :) Thanks again, -Richard
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