Re:SHA-1 'fully and practically broken' by new collision (2020)
by AnimalMuppet on Tuesday October 12, 2021 @04:56PM
(#28844978)
"Paragraph" is highly optimistic. IIRC, each English character has about 1 bit of entropy.
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Re:SHA-1 'fully and practically broken' by new collision (2020)
by __s on Tuesday October 12, 2021 @05:05PM
(#28845078)
Shannon estimated 0.6 to 1.3: https://cs.fit.edu/~mmahoney/dissertation/entropy1.html
For the sake of argument I figured I'd be highly optimistic. The linked prize shows practical evidence of 1GB of Wikipedia being compressed below 1 bit per character (& that's with a limit of 50 hours cpu time, 10GB memory, & 100GB disk)