Preimage attack
id:
preimage-attack-248-9386637
title:
Preimage attack
text:
In cryptography, a preimage attack on cryptographic hash functions tries to find a message that has a specific hash value. A cryptographic hash function should resist attacks on its preimage. In the context of attack, there are two types of preimage resistance: preimage resistance: for essentially all pre-specified outputs, it is computationally infeasible to find any input that hashes to that output; i.e., given y, it is difficult to find an x such that h(x) = y.
second-preimage resistance: for
brand slug:
wiki
category slug:
encyclopedia
description:
Attack model against cryptographic hash functions
original url:
https://en.wikipedia.org/wiki/Preimage_attack
date created:
date modified:
2024-04-13T15:44:19Z
main entity:
{"identifier":"Q1187426","url":"https://www.wikidata.org/entity/Q1187426"}
image:
fields total:
13
integrity:
14