COMPUTER SCIENCE AND ENGINEERING
SYSTEM SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Jumble up a message
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Saves your file to secondary storage
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Translates a file into binary
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Reduces the size of a file
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Detailed explanation-1: -Encryption is the process of using a procedure to jumble up a message so that its meaning is hidden from anyone who intercepts it. Only the intended recipient should know the procedure for un-jumbling it to make it readable again.
Detailed explanation-2: -Another form of enciphering technique is known as a transposition cipher. This involves rearranging the letters of a plaintext message.
Detailed explanation-3: -This process of unscrambling is also known as “decryption”. There are specific terms which are used for the encrypted message as well as the decrypted message. For example, the decrypted message, when it is returned to its plain or original state of context, it is known as the “cleartext” or the “plaintext”.
Detailed explanation-4: -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.