COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK SECURITY AND CYBERSECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Symmetric encryption
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Encryption doesn’t exist!
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Asymmetric encryption
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Same-key encryption
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Detailed explanation-1: -Symmetric encryption uses the same key to perform both encryption and decryption functions. Symmetric encryption uses a shared private key while asymmetric encryption uses a public/private key pair. Another difference between asymmetric and symmetric encryption is the length of the keys.
Detailed explanation-2: -Symmetric encryption uses a single key to encrypt and decrypt. If you encrypt a zip file, then decrypt with the same key, you are using symmetric encryption. Symmetric encryption is also called “secret key” encryption because the key must be kept secret from third parties.
Detailed explanation-3: -The given statement is true. Symmetric encryption system uses only one key to encrypt and decrypt the data.
Detailed explanation-4: -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.