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redicting the last bit] Suppose that a PRG G: K → {0,1}3 is such that Vk : XOR( G(k) ) = 0, that r all keys, an exclusive-or of all bits of the output is zero. ppose that you see the following 7 bits of the output: 0101001. Predict the last (8th) bit. emark: The fact that one can predict the last bit suggests that G is a weak (i.e., insecure) PRG.

redicting the last bit] Suppose that a PRG G: K → {0,1}3 is such that Vk : XOR( G(k) ) = 0, that r all keys, an exclusive-or of all bits of the output is zero. ppose that you see the following 7 bits of the output: 0101001. Predict the last (8th) bit. emark: The fact that one can predict the last bit suggests that G is a weak (i.e., insecure) PRG.

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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[Predicting the last bit] Suppose that a PRG G : K → {0,1}³ is such that Vk : XOR( G(k) ) = 0, that is for all keys, an exclusive-or of all bits of the output is zero. Suppose that you see the following 7 bits of the output: 0101001. Predict the last (8th) bit. Remark: The fact that one can predict the last bit suggests that G is a weak (i.e., insecure) PRG.
Transcribed Image Text:[Predicting the last bit] Suppose that a PRG G : K → {0,1}³ is such that Vk : XOR( G(k) ) = 0, that is for all keys, an exclusive-or of all bits of the output is zero. Suppose that you see the following 7 bits of the output: 0101001. Predict the last (8th) bit. Remark: The fact that one can predict the last bit suggests that G is a weak (i.e., insecure) PRG.
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