Notes on computing hash functions

1 · John Cook · July 1, 2019, 3:16 p.m.
A secure hash function maps a file to a string of bits in a way that is hard to reverse. Ideally such a function has three properties: pre-image resistance collision resistance second pre-image resistance Pre-image resistance means that starting from the hash value, it is very difficult to infer what led to that output; it […]...