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

In reply to Re^3: Opportunity to excel by jethro
in thread Status of Recent User Information Leak by Co-Rion

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