What is "zxid"

ZXID.org Identity Management toolkit implements standalone SAML 2.0, Liberty ID-WSF 2.0, and XACML 2.0 stacks and aims at implementing all popular federation, SSO, and ID Web Services protocols. It is a C implementation with minimal external dependencies - OpenSSL, CURL, and zlib - ensuring easy deployment (no DLL hell). Due to its small footprint and efficient and accurate schema driven implementation, it is suitable for embedded and high volume applications. Language bindings to all popular highlevel languages such as PHP, Perl, and Java, are provided via SWIG. ZXID implements, as of Nov 2011, SP, IdP, WSC, WSP, Discovery, PEP, and PDP roles. ZXID is the reference implementation of the core security architecture of the TAS3.eu project.