On 10/08/11 11:38, Werner Koch wrote: >> 2011-08-10 10:16:02 scdaemon[5153] DBG: response: sw=6581 datalen=0 > > Ooops, > > SW_EEPROM_FAILURE = 0x6581, > > it may be that you had no luck and got a faulty chip. Contact the > supplier for a replacement. > > Or did you run a series of automated tests and the eeprom wore out? > EEPROMs usually allow only for something in the range of 10000 write > cycles. How many verify operations did you run on the card? A verify > needs to write to the eeprom to decrement the bad pin counter before the > verification and increment it later (so that you can't mount power > glitch attacks).
Damn. I didn't run any automated tests... What other operations can only be performed a limited number of times with one of these cards? If I were to PGP sign or decrypt 10,000 emails would that eventually kill the card too? -- Mike Cardwell https://grepular.com/ https://twitter.com/mickeyc Professional http://cardwellit.com/ http://linkedin.com/in/mikecardwell PGP.mit.edu 0018461F/35BC AF1D 3AA2 1F84 3DC3 B0CF 70A5 F512 0018 461F _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
