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8-24-2009 @ 9:55AM
One thing worth noting about the Authenticators:The reason why it works is because it and the remote authenticator server are Synchronized, usually via the same kind of quartz crystal used in a digital watch. They change codes in the exact same way at the exact same time and last for the exact same duration.If you were to remove the battery, you'd throw off the timing and render it useless.
8-24-2009 @ 10:07AM
Not entirely true. I've had similar fobs before that were battery replacable. Do the mobile ones stop working if your phone battery dies? No. As long as they have the same seed, then even if one end loses power and comes back, it will still be synced.
8-24-2009 @ 10:15AM
True but the mobile authenticators still work off of your cell phone's internal clock which is synchronized with your provider, but I'm not too up to date on the understanding on how those work anyway.I've worked with RSA keys before, and unless there's a residual charge or a secondary battery that can power the clock for short periods of time by itself (Which could be possible) You can screw up the timing. Even if there are those things I wouldn't really suggest tampering with it unless it's broken anyway.
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