Files: wp-includes/sodium_compat/src/Compat.php

Should we use the libsodium core function instead? This is always a good idea, if it’s available. (Unless we’re in the middle of running our unit test suite.)

Libsodium as implemented in PHP 7.2 and/or ext/sodium (via PECL)

This emulates libsodium’s version_string() function, except ours is prefixed with ‘polyfill-‘.

Runtime testing method for 32-bit platforms.

Generate an integer between 0 and $range (non-inclusive).

Generate a random 16-bit integer.

Generate a string of bytes from the kernel’s CSPRNG.

Will sodium_compat run fast on the current hardware and PHP configuration?

It’s actually not possible to zero memory buffers in PHP. You need the native library for that.

Compare two strings.

The equivalent to the libsodium minor version we aim to be compatible with (sans pwhash and memzero).

The equivalent to the libsodium minor version we aim to be compatible with (sans pwhash and memzero).

Increase a string (little endian)