In cryptography, CDMF (Commercial Data Masking Facility) is an algorithm developed at IBM in 1992 to reduce the security strength of the 56-bit DES cipher to that of 40-bit encryption, at the time a requirement of U.S. restrictions on export of cryptography. Rather than a separate cipher from DES, CDMF constitutes a key generation algorithm, calle...
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http://en.wikipedia.org/wiki/CDMF
Commercial Data Masking Facility [IBM]
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http://www.encyclo.co.uk/visitor-contributions.php
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