Computers and Technology, 29.01.2021 17:10 heggestade
One may argue that if the plaintext does not repeat, using the same IV is safe. Let us look at the Output Feedback (OFB) mode. Assume that the attacker gets hold of a plaintext (P1) and a ciphertext (C1) , can he/she decrypt other encrypted messages if the IV is always the same? You are given the following information, please try to figure out the actual content of P2 based on C2, P1, and C1. Plaintext (P1): This is a known message! Ciphertext (C1): a469b1c502c1cab966965e50425438e1bb1 b5f9037a4c15913 Plaintext (P2): (unknown to you) Ciphertext (C2): bf73bcd3509299d566c35b5d450337e1bb1 75f903fafc15913 If we replace OFB in this experiment with CFB (Cipher Feedback), how much of P2 can be revealed? You only need to answer the question; there is no need to demonstrate that.
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Computers and Technology, 23.06.2019 00:30
Quic which one of the following is the most accurate definition of technology? a electronic tools that improve functionality b electronic tools that provide entertainment or practical value c any type of tool that serves a practical function d any type of tool that enhances communication
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Which of the following terms refers to a collection of different types of software that share the goal of infiltrating a computer and making it do something? a- malware b- virus c- spyware d- trojan horse
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Computers and Technology, 24.06.2019 09:10
to change the number of rows and columns displayed by the excel object a. select the object and drag a size handle on the active object. b. deselect the object and drag a size handle of the object. c. deselect the object and drag a row or column divider of the object. d. select the object and drag a row or column divider on the active object.
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One may argue that if the plaintext does not repeat, using the same IV is safe. Let us look at the O...
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