Only in that special case where the input <= the output of the hash function... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

jacquesm on Dec 10, 2011 | parent | context | favorite | on: Hash Functions

Only in that special case where the input <= the output of the hash function, as in your example earlier in the thread.

antirez on Dec 11, 2011 [–]

An hash function is invertible enough if it will leak the first three bytes of the input. Does not need to be invertible as F^-1 in mathematical notation.

Consider applying for YC's Fall 2026 batch! Applications are open till July 27.
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact