second preimage attack

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|cryptography}} An [[attack]] on a cryptographic [[hash function]] that is able to find a second [[preimage]] for a hash and its preimage; that is, given a hash and an input that has that specific hash, it is able to find (faster than by [[brute force]]) another input with the same hash.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.