Which of the following are used to generate a message digest by the network security protocols?

(P) RSA

(Q) SHA-1

(R) DES

(S) MD5

(A) P and R only

(B) Q and R only

(C) Q and S only

(D) R and S only

**Answer:**

**(C)**

**Explanation:**

- RSA – It is an algorithm used to
**encrypt and decrypt**messages. - SHA 1 – Secure Hash Algorithm 1, or SHA 1 is a
**cryptographic hash function**. It produces a 160 bit (20 byte) hash value (message digest). - DES – Data Encryption Standard, or DES is a
**symmetric key algorithm for encryption**of electronic data. - MD5 – Message Digest 5, or MD5 is a widely used
**cryptographic hash function**that produces a 128 bit hash value (message digest).

## No comments:

## Post a Comment