Common
Known-plaintext attack
Attack model for cryptanalysis with access to both plaintext and ciphertext
Known-plaintext attack
The known-plaintext attack (KPA) is an attack model for cryptanalysis where the attacker has access to both the plaintext (called a crib) and its encrypted version (ciphertext). These can be used to reveal secret keys and codebooks. The term "crib" originated at Bletchley Park, the British World War II decryption operation, which defined it:A plain language (or code) passage of any length, usually obtained by solving one or more cipher or code messages, and occurring or believed likely to occur in a different cipher or code message, which it may provide a means of solving.
Open boosters, collect cards and trade them. Free to play.
Play for free