Re: Can Eve repeat?

2003-09-29 Thread Ivan Krstic
On Fri, 26 Sep 2003 09:10:05 -0400, Greg Troxel [EMAIL PROTECTED] wrote: [snip] The current canoncial paper on how to calculate the number of bits that must be hashed away due to detected eavesdropping and the inferred amount of undetected eavesdropping is Defense frontier analysis of quantum

Re: New authentication protocol, was Re: Tinc's response to Linux's answer to MS-PPTP

2003-09-29 Thread Anne Lynn Wheeler
On Mon, 2003-09-29 at 06:07, Guus Sliepen wrote: TLS makes a distinction between a client and a server. If possible I wish to avoid making that distinction. If possible, I would also like to continue to be able to use an RSA public/private keypair. This made me *sketch* the following

Re: New authentication protocol, was Re: Tinc's response to Linux's answer to MS-PPTP

2003-09-29 Thread Eric Rescorla
Guus Sliepen [EMAIL PROTECTED] writes: On Sat, Sep 27, 2003 at 07:58:14PM +0100, M Taylor wrote: TLS makes a distinction between a client and a server. If possible I wish to avoid making that distinction. If possible, I would also like to continue to be able to use an RSA public/private

Re: New authentication protocol, was Re: Tinc's response to Linux's answer to MS-PPTP

2003-09-29 Thread Guus Sliepen
On Mon, Sep 29, 2003 at 07:53:29AM -0700, Eric Rescorla wrote: I'm trying to figure out why you want to invent a new authentication protocol rather than just going back to the literature and ripping off one of the many skeletons that already exist ( Several reasons. Because it's fun, because

Re: New authentication protocol, was Re: Tinc's response to Linux's answer to MS-PPTP

2003-09-29 Thread Guus Sliepen
On Mon, Sep 29, 2003 at 05:57:46PM +0200, Guus Sliepen wrote: Now, the attacker chooses 0 as his DH public. This makes ZZ always equal to zero, no matter what the peer's DH key is. I think you mean it is equal to 1 (X^0 is always 1). Whoops, stupid me. Please ignore that. -- Met

Re: New authentication protocol, was Re: Tinc's response to Linux's answer to MS-PPTP

2003-09-29 Thread Matt Blaze
EKR writes: I'm trying to figure out why you want to invent a new authentication protocol rather than just going back to the literature and ripping off one of the many skeletons that already exist (STS, JFK, IKE, SKEME, SIGMA, etc.). That would save people from the trouble of having to

Re: New authentication protocol, was Re: Tinc's response to Linux's answer to MS-PPTP

2003-09-29 Thread Eric Rescorla
Guus Sliepen [EMAIL PROTECTED] writes: On Mon, Sep 29, 2003 at 07:53:29AM -0700, Eric Rescorla wrote: I'm trying to figure out why you want to invent a new authentication protocol rather than just going back to the literature and ripping off one of the many skeletons that already exist (