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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transpositional ciphers
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substitution ciphers
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both transpositional ciphers and substitution ciphers
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quadratic ciphers
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Detailed explanation-1: -1 Answer. Explanation: In transposition ciphers, the order of letters in a plaintext message is shuffled using a pre-defined method. Some of such ciphers are Rail fence cipher and Columnar transposition.
Detailed explanation-2: -Transposition Cipher is a cryptographic algorithm where the order of alphabets in the plaintext is rearranged to form a cipher text. In this process, the actual plain text alphabets are not included.
Detailed explanation-3: -Substitution Ciphers. Substitution ciphers encrypt the plaintext by swapping each letter or symbol in the plaintext by a different symbol as directed by the key.
Detailed explanation-4: -transposition cipher, simple data encryption scheme in which plaintext characters are shifted in some regular pattern to form ciphertext.