Meaning of chosen-ciphertext attack | Babel Free

Definitions

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.

Examples

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

CEFR level