[Bitcoin-development] Time

Gregory Maxwell gmaxwell at gmail.com
Fri Jul 25 02:39:41 UTC 2014


On Thu, Jul 24, 2014 at 7:35 PM, Aaron Voisine <voisine at gmail.com> wrote:
> The upcoming release of breadwallet uses the height of the blockchain to
> enforce timed pin code lockouts for preventing an attacker from quickly
> making multiple pin guesses. This prevents them changing the devices system
> time to get around the lockout period.

Is breadwallet tamper resistant & zero on tamper hardware? otherwise
this sounds like security theater.... I attach a debugger to the
process (or modify the program) and ignore the block sourced time.




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