In symmetric encryption, how many keys are used to encrypt and decrypt data?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. One Key.
In symmetric encryption, the same key is used for both encrypting and decrypting the data. This method is faster and simpler compared to asymmetric encryption, but both the sender and receiver must securely share and store the same key.
Examples of symmetric encryption algorithms include AES (Advanced Encryption Standard) and DES (Data Encryption Standard).