Last Updated on November 21, 2023 by InfraExam

## Which option was used by Diffie-Hellman to determine the strength of the key that is used in the key agreement process?

- DH prime number (p)
- DH base generator (g)
- DH group
- DH modulus

Explanation & Hint:
The strength of the key used in the Diffie-Hellman key agreement process is predominantly determined by the size and properties of the: **DH prime number (p)**
The prime number $p$ used in Diffie-Hellman is a large prime number, and its size (length in bits) is directly related to the strength of the key. The larger the prime number, the stronger the key, as the difficulty of breaking the encryption increases exponentially with key size. The prime number is used as the modulus for the operations in the key exchange process. |