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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the formula for encrypting (coding) the plaintext (normal message)
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the encrypted (coded) message
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the original message to be encrypted (coded)
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Changing data so that it can no longer be understood without a decryption(decode) key
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Detailed explanation-1: -To encrypt a plaintext M using an RSA public key we simply represent the plaintext as a number between 0 and N-1 and then compute the ciphertext C as: C = Me mod N.
Detailed explanation-2: -Encryption/Decryption Function Once you generate the keys, you pass the parameters to the functions that calculate your ciphertext and plaintext using the respective key. If the plaintext is m, ciphertext = me mod n. If the ciphertext is c, plaintext = cd mod n.
Detailed explanation-3: -For example, s = SIGNATURE(p) = p ^ d % z. Then, the recipient can verify the digital signature by applying the encryption function and comparing the result with the message. For example, m = VERIFY(s) = S ^ e % z.
Detailed explanation-4: -Plaintext is what encryption algorithms, or ciphers, transform an encrypted message into. It is any readable data-including binary files-in a form that can be seen or utilized without the need for a decryption key or decryption device.