Which statement correctly contrasts symmetric and asymmetric encryption?
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Get StartedWhich statement correctly contrasts symmetric and asymmetric encryption?
Options:
- Symmetric encryption uses a single shared secret key for both encryption and decryption, while asymmetric uses a public/private key pair
- Asymmetric encryption uses the same secret key for both encrypting and decrypting, while symmetric uses separate public and private keys
- Symmetric encryption always requires more CPU than asymmetric encryption for identical key lengths
- Asymmetric encryption is only used for hashing, while symmetric is only used for signature generation
Correct answer: Symmetric encryption uses a single shared secret key for both encryption and decryption, while asymmetric uses a public/private key pair
Explanation: Symmetric encryption uses one shared secret key for both encrypting and decrypting, whereas asymmetric uses a public/private key pair for separate operations. RSA, a classic asymmetric algorithm, was introduced in 1977.
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