Re: Validating MD5 message digest

From: Doug McIntyre (merlyn@visi.com)
Date: 03/28/03

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    From: Doug McIntyre <merlyn@visi.com>
Date: 28 Mar 2003 21:22:37 GMT

    "zds" <zsy@ix.netcom.com> writes:
    >I was wondering if anyone could suggest a way for me to validate an MD5
    >implementation. I basically have an implementation that generates MD5
    >fingerprints for a set of files. However, I want to write a unit test that
    >proves that the message digest being generated by my implementation is in
    >fact correct.

    Well, you could make sure that your function matches the output
    specified in RFC 1321...

    A.5 Test suite

       The MD5 test suite (driver option "-x") should print the following
       results:

    MD5 test suite:
    MD5 ("") = d41d8cd98f00b204e9800998ecf8427e
    MD5 ("a") = 0cc175b9c0f1b6a831c399e269772661
    MD5 ("abc") = 900150983cd24fb0d6963f7d28e17f72
    MD5 ("message digest") = f96b697d7cb7938d525a2f31aaf161d0
    MD5 ("abcdefghijklmnopqrstuvwxyz") = c3fcd3d76192e4007dfb496cca67e13b
    MD5 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =
    d174ab98d277d9f5a5611c2c9f419d9f
    MD5 ("123456789012345678901234567890123456789012345678901234567890123456
    78901234567890") = 57edf4a22be3c955ac49da2e2107b67a

    And/or compile up the code given in RFC1321 and make sure your output
    matches any given input. 

    -- 
Doug McIntyre						merlyn@visi.com
                   Network Engineer/Jack of All Trades
                      Vector Internet Services, Inc.
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    Relevant Pages

    • System.Security.Cryptography.MD5CryptoServiceProvider
      ... against the RFC 1321 Test suite? ... here is the list of string to hash for md5: ...
      (microsoft.public.dotnet.framework.aspnet.security)
    • Validating MD5 message digest
      ... I was wondering if anyone could suggest a way for me to validate an MD5 ... fingerprints for a set of files. ... proves that the message digest being generated by my implementation is in ...
      (comp.security.misc)