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Date: Thu, 8 Dec 2016 19:29:54 +0800 From: "Longpeng (Mike)" <longpeng2@...wei.com> To: Jussi Kivilinna <jussi.kivilinna@....fi> CC: <jussi.kivilinna@...tian.com>, <herbert@...dor.apana.org.au>, Gonglei <arei.gonglei@...wei.com>, "Zhoujian (jay, Euler)" <jianjay.zhou@...wei.com>, "Wubin (H)" <wu.wubin@...wei.com>, <linux-kernel@...r.kernel.org> Subject: Re: Question about ctr mode 3des-ede IV len Hi Jussi, On 2016/12/7 21:15, Jussi Kivilinna wrote: > Hello, > > 07.12.2016, 14:43, Longpeng (Mike) kirjoitti: >> Hi Jussi and Herbert, >> >> I saw serveral des3-ede testcases(in crypto/testmgr.h) has 16-bytes IV, and the >> libgcrypt/nettle/RFC1851 said the IV-len is 8-bytes. >> >> Would you please tell me why these testcases has 16-bytes IV ? > > Because I used same tool to create test-vectors which I had previously used to create AES/Camellia/Serpent/Twofish test-vectors. So, I must have forgotten to change 16-byte IV generation to 8 bytes and thus those testcases in crypto/testmgr.h have wrong length. The extra trailing 8 bytes are not used and can be removed. > Thank you very much. :) > -Jussi > >> >> Thank you. :) >> > > . > -- Regards, Longpeng(Mike)
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