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I was reading hashcat's About page, and the stats are listed in terms of c/s....is that "Cracks per seconds"....the 'c' part seems wrong, I'm just guessing. What is 'c'?

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"c/s is "crypts" (password hash or cipher computations) per second"

Quoted from the John the Ripper FAQ: http://www.openwall.com/john/doc/FAQ.shtml

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    So technically it means the same basic thing as your guess if you think about it... – Jeff Clayton Aug 28 '14 at 20:02
  • I think we all agree on what's measured, but do you have a source for "crypts"? Seems equally likely that they intend c as an abbreviation for (hash) calculations per second. Crypts seems like the wrong terminology for hashing (unless its something like bcrypt where the hash is built from a cipher). – dr jimbob Aug 28 '14 at 21:14
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    Added in edit the source above. – Jeff Clayton Aug 28 '14 at 22:47
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    @drjimbob: The Unix password hashing function is named crypt(), because in early implementations it actually used the DES cipher. For compatibility, they didn't change the name when they changed the algorithm. – Nate Eldredge Aug 29 '14 at 7:14

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