So sánh Hash

How do I verify a file hash?

Download the file, compute its hash (using this hash generator or your OS tools), then compare it to the official hash published by the software vendor. A match confirms the file wasn't modified.

What is a hash collision?

A collision is when two different inputs produce the same hash. MD5 and SHA-1 are vulnerable to engineered collisions. For security-critical verification, use SHA-256 or SHA-512.

Why does case matter in hash comparison?

Hash algorithms produce consistent output in a fixed case (usually lowercase hex). This tool normalizes both inputs to lowercase before comparing, so MD5 output from different tools always matches.