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Something that was always fishy...Something that was always fishy...Posted Aug 19, 2004 6:12 UTC (Thu) by ncm (subscriber, #165)In reply to: Something that was always fishy... by iabervon Parent article: Crypto researchers abuzz over flaws (News.com)
Are you smoking crack? The spooks specifically demanded that DES be weakened by reducing its key size to only 56 bits.
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Something that was always fishy... Posted Aug 19, 2004 7:30 UTC (Thu) by barryn (subscriber, #5996) [Link] No, (s)he isn't smoking crack. While the NSA shortened the key length, they also changed DES to be resistant to differential cryptanalysis, well over a decade before differential cryptanalysis was discovered by anybody in the general public. (BTW, differential cryptanalysis is the basis of the attacks now being conducted against all these hash functions.)
Look at this Wikipedia article, particularly the "NSA's involvement in the design" section:
Something that was always fishy... Posted Aug 19, 2004 15:10 UTC (Thu) by mmarsh (subscriber, #17029) [Link] NSA wanted the shorter key length so that error-correction bits could be added. They didn't expect DES to be made public, from my understanding, and were somewhat upset when NBS released the DES specification.
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