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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Division
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Multiplication
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Modulo
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Remainder
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Detailed explanation-1: -Asymmetric cryptography is often used to exchange the secret key to prepare for using symmetric cryptography to encrypt data. In the case of a key exchange, one party creates the secret key and encrypts it with the public key of the recipient. The recipient would then decrypt it with their private key.
Detailed explanation-2: -There is no shared key. A message encrypted with a key can not be decrypted with the same key.
Detailed explanation-3: -Some of the most common use cases for asymmetric cryptography include: Digital signatures: Confirming identity for someone to sign a document. Blockchain: Confirming identity to authorize transactions for cryptocurrency.
Detailed explanation-4: -The sender retrieves the recipient’s public key. The sender uses the public key to encrypt plaintext. The sender sends the ciphertext to the recipient. The recipient uses the recipient’s private key to decrypt the ciphertext. The recipient can now view the plaintext.