This is a C# implementation of the unix crypt() algorithm from https://akkadia.org/drepper/SHA-crypt.txt, which is used for secure password hashing.
It is mostly a translation of the Java version from Apache commmons codec (sha2crypt.java), which is itself a translation of the original C version
Only the SHA-256 and SHA-512 encryption algorithms are implemented in this port.
This allows a custom password database to be interoperable between C# and unix/linux.
Nothing to it, really.
var encryptedPassword = Sha256Crypt("MyPassword");
var isValid = Validate("MyPassword", encryptedPassword)
See the project Wibblr.Cryptography.Examples for more.