How does timeseal work? [on hold]

Posted by Simon Meyer on Programmers See other posts from Programmers or by Simon Meyer
Published on 2014-05-19T11:54:40Z Indexed on 2014/05/28 4:01 UTC
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I know the the fics (free internet chess server: www.freechess.org/) does use a program called timeseal to measure the time that a user needed to take a move. This timeseal is some time measurement on the client. Measuring on the client is much better and fairer than measuring the time on the server since you don't lose time just by having a bad connection.

But since fics has a lot of interfaces to play on - what prevents rogue interfaces to say that they always only used 0.1 seconds for any move? Does anyone know how this is handled?

Just a sidenote: i don't want to build a rogue interface, but i'm trying to build something similar that is measuing client side time but should not be easy to cheat on.

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