Collision
Course: AP® Cybersecurity Shows up in: Unit 4: Securing Devices
When two different inputs produce the same hash; if collisions can be forced efficiently, the hash function is deprecated.
Appears in the course and exam description (CED): 4.2.A.24.2.A.4
Why it matters in Unit 4
MD5 and SHA-1 are deprecated for this reason.
Example
Two different files with the same MD5 hash.
Learn it properly, with a checkpoint 4.2 Authentication