Description

OpenSSL now provides argon2 algorythms
See: https://www.openssl.org/docs/manmaster/man7/EVP_KDF-ARGON2.html

It will be nice to be able to use argon2 password hash methods from OpenSSL extension when PHP is build without libargon2 and without libsodium

Doable thanks to php_password_algo_register as already done in sodium

Open for discussion
Ping @bukka