8. 规范性引用 (Normative References)
[1] Zahn, L., Dineen, T., and P. Leach, "网络计算体系结构 (Network Computing Architecture)", ISBN 0-13-611674-4, January 1990.
[2] "DCE: 远程过程调用 (Remote Procedure Call)", Open Group CAE Specification C309, ISBN 1-85912-041-5, August 1994.
[3] ISO/IEC 9834-8:2004 Information Technology, "OSI 注册机构的操作程序: 通用唯一标识符 (UUIDs) 的生成和注册, 以及它们作为 ASN.1 对象标识符组件的使用" ITU-T Rec. X.667, 2004.
[4] Rivest, R., "MD5 消息摘要算法", RFC 1321, April 1992.
[5] Eastlake, D., 3rd, Schiller, J., and S. Crocker, "安全性的随机性要求", BCP 106, RFC 4086, June 2005.
[6] Moats, R., "URN 语法", RFC 2141, May 1997.
[7] Crocker, D. and P. Overell, "语法规范的增强 BNF: ABNF", RFC 2234, November 1997.
[8] National Institute of Standards and Technology, "安全散列标准", FIPS PUB 180-1, April 1995, ````http://www.itl.nist.gov/fipspubs/fip180-1.htm\````.