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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Cryptosystem
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Cryptography
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Encryption
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None of the above
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Detailed explanation-1: -The science of encrypting and decrypting information is called cryptography. In computing, unencrypted data is also known as plaintext, and encrypted data is called ciphertext. The formulas used to encode and decode messages are called encryption algorithms, or ciphers.
Detailed explanation-2: -Many use the term cryptography in place of cryptology, but it is important to remember that cryptology encompasses both cryptography and cryptanalysis. A cipher is a cryptographic algorithm. A plaintext is an unencrypted message. Encryption converts the plaintext to a ciphertext.
Detailed explanation-3: -AES 256-bit encryption is the strongest and most robust encryption standard that is commercially available today. While it is theoretically true that AES 256-bit encryption is harder to crack than AES 128-bit encryption, AES 128-bit encryption has never been cracked.
Detailed explanation-4: -Symmetric cryptography refers to the practice of the same key being used for both encryption and decryption.