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One time Let (E, D) be a (one-time) secure cipher where the message and ciphertext space is {0, 1}". Which of the following statement is true? Select one: a. H(0||E(||m)) is a secure hash function, where || denotes concatenation b. H(E(k || m)) is a secure hash function, where || denotes concatenation C. E(k, m) is secure as long as it is used once d. (E(k, m)||E(k, m)) is a secure cipher, where || denotes concatenation e. (0||E(k, m)) is a secure cipher, where || denotes concatenation

One time Let (E, D) be a (one-time) secure cipher where the message and ciphertext space is {0, 1}". Which of the following statement is true? Select one: a. H(0||E(||m)) is a secure hash function, where || denotes concatenation b. H(E(k || m)) is a secure hash function, where || denotes concatenation C. E(k, m) is secure as long as it is used once d. (E(k, m)||E(k, m)) is a secure cipher, where || denotes concatenation e. (0||E(k, m)) is a secure cipher, where || denotes concatenation

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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One time Let (E, D) be a (one-time) secure cipher where the message and ciphertext space is {0, 1}". Which of the following statement is true? Select one: a. H(0||E(||m)) is a secure hash function, where || denotes concatenation b. H(E(k || m)) is a secure hash function, where || denotes concatenation C. E(k, m) is secure as long as it is used once d. (E(k, m)||E(k, m)) is a secure cipher, where || denotes concatenation e. (0||E(k, m)) is a secure cipher, where || denotes concatenation
Transcribed Image Text:One time Let (E, D) be a (one-time) secure cipher where the message and ciphertext space is {0, 1}". Which of the following statement is true? Select one: a. H(0||E(||m)) is a secure hash function, where || denotes concatenation b. H(E(k || m)) is a secure hash function, where || denotes concatenation C. E(k, m) is secure as long as it is used once d. (E(k, m)||E(k, m)) is a secure cipher, where || denotes concatenation e. (0||E(k, m)) is a secure cipher, where || denotes concatenation
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