Protecting passwords with Argon2 in PHP 7.2 PHP 7.2 will be released later this year (2017) . This version contains some interesting additions, including two new security features: support of the Argon2 password hash algorithm, and the ext/sodium extension wrapping the libsodium library. With these new features, PHP is the first programming language to adopt modern cryptography in its standard library. In this article, we demonstrate the usage of the Argon2 password hash algorithm. Installation of PHP 7.2 If you are reading this article before the general availability of 7.2, you need to compile PHP to use that version. You can download the source code from the PHP downloads site . Today, 17 August 2017, the most recent available version is 7.2.0 Beta 3 (file php-7.2.0beta3.tar.gz ). Before compiling PHP, you need to install the argon2 library. If you are using a Debian/Ubuntu Linux distribution...