12. Normative References (规范性引用)

• [RFC2104] "HMAC: Keyed-Hashing for Message Authentication", RFC 2104, February 1997.
• [RFC2119] "Key words for use in RFCs to Indicate Requirement Levels", RFC 2119, March 1997.
• [RFC2560] "X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP", RFC 2560, June 1999.
• [RFC2585] "Internet X.509 Public Key Infrastructure Operational Protocols: FTP and HTTP", RFC 2585, May 1999.
• [RFC2616] "Hypertext Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.
• [RFC3986] "Uniform Resource Identifier (URI): Generic Syntax", RFC 3986, January 2005.
• [RFC5246] "The Transport Layer Security (TLS) Protocol Version 1.2", RFC 5246, August 2008.
• [RFC5280] "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile", RFC 5280, May 2008.
• [RFC5890] "Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework", RFC 5890, August 2010.