Question
Which of the following is a symmetric key encryption algorithm?
Solution
AES is a symmetric algorithm — the same key encrypts and decrypts data. It supports key sizes of 128, 192, and 256 bits. AES-256 is considered unbreakable with current computing. RSA, ECC, DSA, and Diffie-Hellman are asymmetric algorithms. Banks use AES for encrypting stored data and TLS sessions.
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