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List: cfrg
Subject: Re: [Cfrg] Error in the examples for draft-mcgrew-hash-sigs/
From: mcgrew <mcgrew () cisco ! com>
Date: 2019-03-07 17:48:54
Message-ID: D60C59B8-EC8C-44E6-B649-19E8F332759D () cisco ! com
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Hi Scott,
> On Mar 7, 2019, at 11:27 AM, Scott Fluhrer (sfluhrer) <sfluhrer@cisco.com> wrote:
>
> Yup, you're right; the test vector is wrong.
>
> I believe that's something I can fix in the AUTH48 corrections at the end of the RFC process…
Perfect, thanks!
Jim, thanks for reporting the issue before AUTH48.
David
>
>> -----Original Message-----
>> From: Cfrg <cfrg-bounces@irtf.org> On Behalf Of Jim Schaad
>> Sent: Wednesday, March 06, 2019 5:56 PM
>> To: cfrg@irtf.org
>> Subject: [Cfrg] Error in the examples for draft-mcgrew-hash-sigs/
>>
>> I have been toiling away to get my implementation of this draft working. In
>> the process of doing so, I ended up spending a certain amount of time trying
>> to figure out this problem. If you attempt to generate the public key from
>> the private key seed given in the document, you will never be able to
>> succeed. The problem is that the sample program from Cisco takes this key
>> and performs some transformations on it in order to generate the identifier
>> and the real seed for Appendix A.
>>
>> The correct seed is
>> 55 8B 89 66 C4 8A E9 CB 89 8B 42 3C 83 44 3A AE
>> 01 4A 72 F1 B1 AB 5C C8 5C F1 D8 92 90 3B 54 39
>>
>>
>> Jim
>>
>>
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>
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