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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A ____ is a variable in a cipher used to encrypt or decrypt a message.
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Key
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Cipher
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Algorithm
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Key Space
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Explanation:
Detailed explanation-1: -In cryptography, an encryption key is a variable value that is applied using an algorithm to a string or block of unencrypted text to produce encrypted text or to decrypt encrypted text.
Detailed explanation-2: -The two keys are called the “public key” and the “private key” of the user. The network also has a public key and a private key. The sender uses a public key to encrypt the message. The recipient uses its private key to decrypt the message.
Detailed explanation-3: -To encrypt a message, enter the message in the Plaintext textbox, specify the shift, and click Encrypt. To decrypt a message, enter the message in the Ciphertext textbox, specify the shift, and click Decrypt.
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