known-plaintext attack

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(cryptography) An attack on a cryptosystem that relies on the attacker's knowledge of not just some ciphertexts encrypted with that system and key, but also their corresponding plaintexts (cribs). More powerful than a ciphertext-only attack, but less powerful than a chosen-plaintext attack.

日本語の意味

既知平文攻撃: 暗号システムに対する攻撃の一種で、攻撃者が暗号文だけでなく、対応する平文（クリブ）も既知であるという情報を利用し、システムの鍵や内部構造を解読しようとする手法。暗号文のみの攻撃より効果的だが、選択平文攻撃ほどの柔軟性はない。

英語の意味

(cryptography) An attack on a cryptosystem that relies on the attacker's knowledge of not just some ciphertexts encrypted with that system and key, but also their corresponding plaintexts (cribs). More powerful than a ciphertext-only attack, but less powerful than a chosen-plaintext attack.

このボタンはなに？

The security team detected a known-plaintext attack after finding several ciphertexts paired with their original messages.

セキュリティチームは、複数の暗号文と対応する平文が見つかった後、既知平文攻撃を検出した。

詳細

意味（1）

(cryptography) An attack on a cryptosystem that relies on the attacker's knowledge of not just some ciphertexts encrypted with that system and key, but also their corresponding plaintexts (cribs). More powerful than a ciphertext-only attack, but less powerful than a chosen-plaintext attack.

known-plaintext attacks （ plural ）