chosen-ciphertext attack

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English[edit]

Noun[edit]

chosen-ciphertext attack (plural chosen-ciphertext attacks)

  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.

Synonyms[edit]

  • CCA (initialism)

Coordinate terms[edit]

Translations[edit]