Resources discussing secure time (nonce) in a distributed environment.

2002-03-23 Thread p2p-hackers mailing list
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Does anyone have any references they would recommend which talk about the problems of time in a secure and distributed environment? Specifically, how do you keep others from cheating and saying that an event happened in the past when it actually hap

Re: Resources discussing secure time (nonce) in a distributed environment.

2002-03-23 Thread Zooko
Kevin A. Burton wrote: > > Does anyone have any references they would recommend which talk about the > problems of time in a secure and distributed environment? Ross Anderson's [1] "Security Engineering" [2] gives this reference: L Lamport, "Time, Clocks and the Ordering of Events in a Distrib

merkle authentication trees (Re: Resources discussing secure time (nonce) in a distributed environment.)

2002-03-23 Thread Adam Back
I think Merkle authentication trees allow you to do this, if you don't care about specific time, but just about the ordering of events. Most of the time-stamping services are based on this, where they publish a daily master hash somewhere. I can't seem to find an online copy of the Merkle paper

RE: Resources discussing secure time (nonce) in a distributed environment.

2002-03-22 Thread Phillip H. Zakas
>Kevin A. Burton writes: >Does anyone have any references they would recommend which talk about the >problems of time in a secure and distributed environment? Try datum.com...they offered a sponsor pitch at intl financial cryptography in Bermuda two weeks ago. Unlike most of the academic (and ir