"be consistent" | |
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Re^3: Opportunity to excelby jethro (Monsignor) |
on Aug 02, 2009 at 15:12 UTC ( [id://785244]=note: print w/replies, xml ) | Need Help?? |
Hash the userid and password together. That would just be like a seed but with a guessable instead of a random value. Would make it possible to generate rainbow tables for common userid ranges (or if you meant usernames, for common usernames). Storing the seed in front of the hash value is neither expensive nor difficult and there is no reason to optimize randomness away for a clever trick to save a few kbyte
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