OpenPGP Card "CHV* failed: general error"

Werner Koch wk at gnupg.org
Wed Aug 10 12:38:16 CEST 2011


On Wed, 10 Aug 2011 11:23, gnupg at lists.grepular.com said:

> 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).


Shalom-Salam,

   Werner


-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.




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