the minimum key length for a one-time pad 1. The process of transforming ciphertext to plaintext is known as: a. Decryption b. Encryption c. Key recovery d. Hashing 2. Which of the following statements is true about the Vernam cipher? a. It is a polyalphabetic cipher b. It is a running-key cipher c. The encryption key is used for only one message d. Another name for it is a one-time hash 3. What is the minimum key length for a one-time pad? a. 128 bits b. 64 bits c. 56 bits d. The length of the plaintext message 4. All of the following statements about the polyalphabetic cipher are true EXCEPT: a. It is a form of one-time pad b. It is resistant to frequency analysis attacks c. It uses multiple substitution alphabets d. It is a type of substitution cipher 5. A running-key cipher can be used when: a. The plaintext is longer than the encryption key b. The plaintext is shorter than the encryption key c. The plaintext is streaming media d. The plaintext is changing rapidly Computer Science Assignment Help, Computer Science Homework help, Computer Science Study Help, Computer Science Course Help
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