chosen-ciphertext attack

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English

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Noun

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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

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  • CCA (initialism)

Coordinate terms

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Translations

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