Re: test vectors for HMAC-SHA-1 - Test Data and Bad News -Reply

[John Kennedy <[e-mail]>]

I also ran the "Hi There" message through a SHA-1 utility I developed
independently and got the same answer that BSAFE gives.  As far as
the "endian-ness" convention goes, the BSAFE answer is compliant with
the test vectors given in the FIPS standard.  Thus, I would contend that
the BSAFE answer is the "correct" one.

I also suspect this representation issue has something to do with the
Diffie-Hellman compatibility problem. 

-John Kennedy
 NOVELL, Inc.

>>> "C. Harald Koch" <[e-mail]> 02/06/97 11:53am >>>
In message <01BC1429.F844BBC0@localhost>, Edward Russell writes:
> 
> BSAFE SHA:
> 4B 3A ED 5F 9F E4 01 59 B4 99 53 6F B8 A1 0C DF 3B C6 2B 4C 
> 
> CYLINK SHA:
> 4C 2B C6 3B DF 0C A1 B8 6F 53 99 B4 59 01 E4 9F 5F ED 3A 4B 

I've seen this before. There are two different representations of hash
codes
floating around; "big endian" and "little endian". Note that the above
hashes are identical with the *bytes* listed in the opposite order.

I couldn't tell you which one is 'correct' though :-)

-- 
C. Harald Koch          | Senior System Developer, Secure Computing
Canada Ltd.
[e-mail]          | 100 University Ave., 7th Floor, Toronto ON M5J
1V6
[phone] (voice) | "Madness takes its toll. Please have exact
change."
[phone] (fax)   |		-Karen Murphy
<[e-mail]>


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Date: Thu, 06 Feb 1997 11:53:02 -0700
From: "C. Harald Koch"  <[e-mail]>
To: [e-mail]
Cc: [e-mail]
Subject: Re: test vectors for HMAC-SHA-1 - Test Data and Bad News

In message <01BC1429.F844BBC0@localhost>, Edward Russell writes:
> 
> BSAFE SHA:
> 4B 3A ED 5F 9F E4 01 59 B4 99 53 6F B8 A1 0C DF 3B C6 2B 4C 
> 
> CYLINK SHA:
> 4C 2B C6 3B DF 0C A1 B8 6F 53 99 B4 59 01 E4 9F 5F ED 3A 4B 

I've seen this before. There are two different representations of hash codes
floating around; "big endian" and "little endian". Note that the above
hashes are identical with the *bytes* listed in the opposite order.

I couldn't tell you which one is 'correct' though :-)

-- 
C. Harald Koch          | Senior System Developer, Secure Computing Canada Ltd.
[e-mail]          | 100 University Ave., 7th Floor, Toronto ON M5J 1V6
[phone] (voice) | "Madness takes its toll. Please have exact change."
[phone] (fax)   |		-Karen Murphy <[e-mail]>