Liberty 核心框架SAML
SAML 规范 http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=security
SAML 1.1 下载：
http://www.oasis-open.org/committees/download.php/6837/sstc-saml-tech-overview-1.1-cd.pdf
http://www.oasis-open.org/committees/download.php/3400/oasis-sstc-saml-1.1-pdf-xsd.zip
有空把它翻译成中文放上来。
