Last Updated：2025/12/06

Dictionary quizzes to help you remember the meaning

Dictionary quizzes to help you remember the meaning

second preimage attack

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Source Word

second preimage attack

(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.

Japanese Meaning

暗号学において、ハッシュ関数に対する攻撃手法の一種です。与えられたハッシュ値およびその対応する入力が存在する状況で、（総当たり攻撃よりも高速に）同じハッシュ値を生成する別の入力値（セカンドプリイメージ）を見つけ出す攻撃を指します。

What is this buttons?

Researchers demonstrated a second preimage attack against the legacy hash function, forcing a migration to more secure algorithms.

Google Translation / DeepL Translation

研究者たちは既存のハッシュ関数に対する第二事前像攻撃（与えられた入力と同じハッシュ値を生成する別の入力を見つける攻撃）を実証し、より安全なアルゴリズムへの移行を余儀なくさせた。

Sense（1）

(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.

second preimage attacks

（ plural ）

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