CyberCertPrepSecurity FundamentalsCryptography FundamentalsEASYFree question
What is symmetric encryption?
- A.Encryption that uses the same key for both encryption and decryption
- B.Encryption that only works on text files; symmetric encryption solves key distribution because every user shares one global key
- C.Encryption that uses two different keys, because AES is an asymmetric cipher built on a public and private key pair
- D.Encryption that does not require a key
Why A is correct
Symmetric encryption uses a single shared key for both encrypting and decrypting data. Both the sender and receiver must possess the same secret key. It is fast and efficient, making it ideal for encrypting large amounts of data, but the challenge is securely sharing the key.
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