I want to use an OC 9.1 installation as an authentication provider for Dokuwiki, by using authPDO (https://www.dokuwiki.org/plugin:authpdo#configuration) with PHP Data Objects. I need some in-depth info about the used database structure and the hashes used for the user passwords.
Aside from reading the code, can anyone give me some hints for good links and provide some detailed info about the hashes?
Operating system: Ubuntu LTS 16.04
Web server: Apache 2.4
PHP version: 7.x
ownCloud version: 9.1.2
Updated from an older ownCloud or fresh install: updated