Tsukuba-GAMA provides user and credential management, using the Grid Security Infrastructure (GSI) based on Public Key Infrastructure (PKI), X.509 certificate, proxy certificate, and the concept of Virtual Organization (VO).
Apache 1 and 2 module for authentication using Realms (cookie based) - domain, IP address/ range uid/password and certificate login support Java classes to login user and manage user database using a mySQL table