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Part 1: Please answer the following questions about the fundamental of cryptography. Each question has only one correct answer. 1. Which description about Information Theoretic Security is NOT correct? A. Ciphertext should reveal no "information about Plaintext (except for its length). B. One-Time Pad can achieve Information Theoretic Security. C. If the cipher can achieve Information Theoretic Security, the probability distribution of the plaintext would change after knowing the ciphertext. D. To achieve Information Theoretic Security, the key should be completely random and at least as long as the plaintext/ciphertext.

Part 1: Please answer the following questions about the fundamental of cryptography. Each question has only one correct answer. 1. Which description about Information Theoretic Security is NOT correct? A. Ciphertext should reveal no "information about Plaintext (except for its length). B. One-Time Pad can achieve Information Theoretic Security. C. If the cipher can achieve Information Theoretic Security, the probability distribution of the plaintext would change after knowing the ciphertext. D. To achieve Information Theoretic Security, the key should be completely random and at least as long as the plaintext/ciphertext.

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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Part 1: Please answer the following questions about the fundamental of cryptography. Each question has only one correct answer. 1, Which description about Information Theoretic Security is NOT correct? A. Ciphertext should reveal no "information" about Plaintext (except for its length). B. One-Time Pad can achieve Information Theoretic Security. C. If the cipher can achieve Information Theoretic Security, the probability distribution of the plaintext would change after knowing the ciphertext. D. To achieve Information Theoretic Security, the key should be completely random and at least as long as the plaintext/ciphertext.
Transcribed Image Text:Part 1: Please answer the following questions about the fundamental of cryptography. Each question has only one correct answer. 1, Which description about Information Theoretic Security is NOT correct? A. Ciphertext should reveal no "information" about Plaintext (except for its length). B. One-Time Pad can achieve Information Theoretic Security. C. If the cipher can achieve Information Theoretic Security, the probability distribution of the plaintext would change after knowing the ciphertext. D. To achieve Information Theoretic Security, the key should be completely random and at least as long as the plaintext/ciphertext.
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