Question

The NIST developed federal government standards beginning in 1991 called digital signature standards. Of the DSS standards RSA and DSA are most commonly used. When two different messages are computed using the same algorithm and the same message digest value results, this is called what?

A). CMAC
B). Knapsack algorithm
C). Collision
D). One-way hatch

Answer 1

When two different messages produce the same message digest value using the same hash algorithm, this is called a collision. Collision is a security concern in cryptographic hash functions used in standards like DSS, involving RSA and DSA algorithms.

Step-by-step explanation:

When two different messages are computed using the same algorithm and the same message digest value results, this phenomenon is known as a collision. This situation is particularly relevant in the context of hash functions in cryptography, where a hash function is considered vulnerable if it is feasible to find two distinct inputs that produce the same output, or hash value. The Digital Signature Standard (DSS) employs hash functions like RSA and DSA to ensure the integrity and authenticity of digital messages. While highly unlikely in well-designed hash functions like SHA-256, collisions are a serious security concern when they occur.