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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Used during a single session
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Asymmetric key
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Reused during multiple sessions
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Symmetric key
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Detailed explanation-1: -A session key is an encryption and decryption key that is randomly generated to ensure the security of a communications session between a user and another computer or between two computers. Session keys are sometimes called symmetric keys because the same key is used for both encryption and decryption.
Detailed explanation-2: -Symmetric encryption is a type of encryption where only one key (a secret key) is used to both encrypt and decrypt electronic data. The entities communicating via symmetric encryption must exchange the key so that it can be used in the decryption process.
Detailed explanation-3: -A session key is any symmetric cryptographic key used to encrypt one communication session only.
Detailed explanation-4: -A session key is a symmetric key that is good for only one communication session. It is generated and used to encrypt all communications within just one conversation or exchange.