Multiple choice technology security

VPN uses which encryption algorithms ?

  1. symmetric

  2. asymmetric

  3. both symmetric and asymmetric

  4. hashing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

VPNs use both symmetric and asymmetric encryption. Asymmetric encryption (RSA, Diffie-Hellman) is used during the key exchange/handshake phase to securely negotiate symmetric keys. Symmetric encryption (AES, 3DES) is then used for bulk data transfer because it's much faster. Hashing provides integrity, not encryption.

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