ImplementationQuestion 43 of 100
Which type of encryption uses the same key to encrypt and decrypt data?
a.Asymmetric
b.Hashing
c.Symmetric
d.Steganographic
Explanation
Symmetric encryption uses a single shared secret key for both encryption and decryption, such as AES. It is fast and suited to bulk data. The main challenge is securely distributing the shared key.
Practice all 100 questions free — no signup required.
Related questions on this topic
- Which cryptographic method uses a public and private key pair?
- Which one-way function produces a fixed-length value that cannot be reversed to the original input?
- Adding a unique random value to each password before hashing to defeat precomputed attacks is called:
- Which entity in a PKI issues and signs digital certificates?
- Which mechanism lets a client quickly check whether a single certificate has been revoked?
- What does a digital signature primarily provide?
Last reviewed: · editorial process
Sen Lin, PrepPass Founder · Verified against CompTIA Security+ (SY0-701) · How we review