English Dictionary

chosen-ciphertext attack

名詞

(cryptography) An attack on a cryptosystem that relies on the attacker's ability to choose any ciphertext of their liking and decrypt it into the corresponding plaintext with that system and key. More powerful than a chosen-plaintext attack.

日本語の意味

攻撃者が任意の暗号文を選択し、その暗号文を特定のシステムと鍵を用いて平文に復号させる能力に依存する暗号システムに対する攻撃。選択平文攻撃よりも強力な手法。

To evaluate the protocol's robustness, researchers simulated a chosen-ciphertext attack that allowed the adversary to submit arbitrary ciphertexts for decryption and observe the resulting plaintexts.

プロトコルの堅牢性を評価するため、研究者たちは攻撃者が任意の暗号文を選んで復号させ、その結果の平文を観察できるという攻撃をシミュレートした。

意味（1）

(cryptography) An attack on a cryptosystem that relies on the attacker's ability to choose any ciphertext of their liking and decrypt it into the corresponding plaintext with that system and key. More powerful than a chosen-plaintext attack.

The ElGamal encryption system is resistant against chosen-plaintext attacks, but not against chosen-ciphertext attacks.

chosen-ciphertext attacks （ plural ）