What is a Hash?
A hash is a specialized one-way mathematical algorithm (one way ticket), which transforms the original raw data into a structured hex string with a fixed length. The property of Hash is **anti-reversing back to raw**, ensuring secrecy for Database Password strings.
SHA-256 and SHA-512
Belonging to the SHA-2 Hashing technique family introduced by NSA (USA) to compensate for vulnerabilities when MD5 technology was too outdated. The application of SHA-512 today is the top priority for banks or large application providers because its collision rate is absolutely impossible.