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CQRE
1999
Springer

Cryptanalysis of Microsoft's PPTP Authentication Extensions (MS-CHAPv2)

10 years 5 months ago
Cryptanalysis of Microsoft's PPTP Authentication Extensions (MS-CHAPv2)
The Point-to-Point Tunneling Protocol (PPTP) is used to secure PPP connections over TCP/IP link. In response to [SM98], Microsoft released extensions to the PPTP authentication mechanism (MS-CHAP), called MS-CHAPv2. We present an overview of the changes in the authentication and encryption-key generation portions of MS-CHAPv2, and assess the improvements and remaining weaknesses in Microsoft’s PPTP implementation.
Bruce Schneier, Mudge, David Wagner
Added 04 Aug 2010
Updated 04 Aug 2010
Type Conference
Year 1999
Where CQRE
Authors Bruce Schneier, Mudge, David Wagner
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