The Diffie-Hellman algorithm is used for?

A.
Encryption

B.
Digital signature

C.
Key exchange

D.
Non-repudiation

Explanation:

Diffie Hellman is a Key exchange algorithm, its strength its in the difficulty of computing discrete
logarithms in a finite field generated by a large primary number. Although RSA and Diffie Hellman
are similar in mathematical theory, their implementation is somewhat different. This algorithm has
been released to the public. It’s the primary alternative to the RSA algorithm for key exchange.