Atalla AKB format

From: Mike Cederberg (mikecederberg_at_suscom.net)
Date: 05/25/03

  • Next message: Space Man: "Re: newsgroup security?" 
    Date: 24 May 2003 15:13:16 -0700

    Can someone help me understand the Atalla AKB format? I understand the
    ECB and CBC DES modes and the header,3Key,MAC format and what the
    header bytes mean.

    What I'm having trouble getting is how to derive an AKB value from a
    standard key.

    For example, here is a snippet of an example:

    The 3key-3DES Master File Key is:
    2ABC 3DEF 4567 0189 9810 7645 FED3 CBA2 0123 4567 89AB CDEF,
    check digits = B196.

    Clear-text Master Key: 1111 1111 1111 1111.
    The Master Key in AKB format:
    1ADNE000,30E6A07C9E4C487EB08F46AF01E64CAED0992A87B336AC61,A66
    804B787FC9CDD

    How do they get the AKB formatted value?

    Mike

  • Next message: Space Man: "Re: newsgroup security?"