COMPUTER ETHICS AND SECURITY
CRYPTOGRAPHY AND ENCRYPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ensure message remains secret during transmission between parties
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Ensure message is not altered while in transit between communicating partners
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Verifies sender is who she says she is
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Proves that nobody but on sender could have sent a particular message
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Detailed explanation-1: -Cryptanalysis is the process of studying cryptographic systems to look for weaknesses or leaks of information.
Detailed explanation-2: -Ciphers can be distinguished into two types by the type of input data: block ciphers, which encrypt block of data of fixed size, and. stream ciphers, which encrypt continuous streams of data.
Detailed explanation-3: -What is a cipher? In cryptology, the discipline concerned with the study of cryptographic algorithms, a cipher is an algorithm for encrypting and decrypting data. Symmetric key encryption, also called secret key encryption, depends on the use of ciphers, which operate symmetrically.
Detailed explanation-4: -Secret Key Cryptography. Public Key Cryptography. Hash Functions.