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Jan 4, 2017 at 16:53 vote accept SEJPM
Jan 3, 2017 at 15:46 answer added user13741 timeline score: 2
Jan 3, 2017 at 14:18 history edited SEJPM CC BY-SA 3.0
fixed pseudo -> near
Jan 2, 2017 at 19:36 history tweeted twitter.com/StackCrypto/status/816005152025051136
Jan 2, 2017 at 19:25 comment added Maarten Bodewes I guess you might as well ask: how much effort is needed to find two strings $r_1, r_2$ where $r_i \in \{0, 1\}^n$ such that $\Delta(r_1, r_2) \leq k$, as "a small change to a message should change the hash value so extensively that the new hash value appears uncorrelated with the old hash value" (i.e. pseudo random) is a requirement for hash functions. Problem is, I only found a partial answer here. Maybe a big $\sum$ can help though (we could ask on Math...).
Jan 2, 2017 at 17:59 history asked SEJPM CC BY-SA 3.0