Question

An ________________________ adds a key to a hash to improve integrity. A) HMAC (Hash-based Message Authentication Code)

B) SSL (Secure Sockets Layer)

C) AES (Advanced Encryption Standard)

D) RSA (Rivest–Shamir–Adleman)

Answer 1

An HMAC adds a key to a hash to improve integrity by providing authentication and ensuring the message has not been tampered with.

Step-by-step explanation:

An HMAC (Hash-based Message Authentication Code) adds a key to a hash to improve integrity. By combining a secret key with the message data and a cryptographic hash function, HMAC provides both integrity and authentication. SSL (Secure Sockets Layer) is a security protocol that establishes encrypted links between web servers and browsers, AES (Advanced Encryption Standard) is a symmetric encryption algorithm used to secure data, and RSA (Rivest–Shamir–Adleman) is an asymmetric encryption algorithm used for secure data transmission.