In a ____ attack, the attacker has access to plaintext and ciphertext and the ability to choose which messages to encrypt.
A)chosen-ciphertext
B)chosen-plaintext
C)known plaintext
D)ciphertext-only

Question

Quizplus · Accepted Answer

In a chosen-plaintext attack, the attacker has the ability to choose plaintext messages and observe their resulting ciphertexts. This can give the attacker insight into the encryption algorithm being used and potentially allow them to derive the encryption key. In contrast, a chosen-ciphertext attack involves the attacker choosing ciphertexts and observing their corresponding plaintexts, which is typically more difficult to accomplish. Known plaintext attacks rely on the attacker having access to some ciphertext and its corresponding plaintext, while ciphertext-only attacks involve the attacker only having access to encrypted messages.

In a ____ Attack, the Attacker Has Access to Plaintext