摘要： 点到点隧道协议(PPTP)是用来保护在TCP/IP上的PPP连接安全的、分析Microsoft’s Windows NT是如何实现PPTP的。给出如何破译MS CHAP和RC4加密协议(MPPE),如何攻击由MS实现的PPTP的控制隧道,而不需要破译PPTP。
关键词:
PPTP,
MS-CHAP,
MPPE,
密码分析
Abstract: The point-to-point tunneling protocol (PPTP) is used to secure PPP connections over TCP/IP links. In this paper we analyze Microsoft's Windows NT implementation of PPTP. We show how to break both the challenge/response authentication protocol (Microsoft CHAP) and the RC4 encryption protocol (MPPE), as well as how to attack the control channel in Microsoft's implementation. These attacks needn't break PPTP, but only Microsoft's implementation of the protocol.
中图分类号:
王 坤,李 建,谢培泰. MS PPTP密码分析[J]. , 2002, 28(04): 147-.
WANG Kun, LI Jian, XIE Peitai. Cryptanalysis of Microsoft's Point-to-Point Tunneling Protocol[J]. , 2002, 28(04): 147-.