Collision

If you hash the same data or password with MD5 or with SHA-1, then it will always create the same hash. Hashes are used to store passwords or digitally sign documents. A collision attack is where the attacker tries to match the hash; if the hash is matched, it is known as a collision, and this could compromise systems.

Get CompTIA Security+ Certification Guide now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.