4. How long does it take for digital signature

   This would be the most frequent asked question.

   With STM32F103 running at 72MHz, version 0.12 takes 1.78 [sec], for gpg --clearsign (total real time, including communication, computation on host PC).

   It will be improved a bit in next version.

   See PolarSSL fix for ARM for improvement.

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5. Make Gnuk USB Token by STM8S Discovery Kit

   This document shows that how you can make your own hardware of Gnuk USB Token by yourself. For software installation and configuration, see README of Gnuk distribution.

   Note that it requires some skill of electronics and handicraft.

   I assume you make two, one for yourself, and another for your friend …

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6. Gnuk Token in a box of hair pins

   Niibe puts STM32 part of STM8S Discovery Kit in a box of hair pins by Kaijirushi.

   

   The product number is 061LD-0703, which is available at Seven-Eleven. It costs 231 JPY.

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7. Version 0.12

   Version 0.12 of Gnuk has been released.

   It includes bug fixes and added a notable feature, and sticker.

   • Admin-less mode is supported

     The OpenPGP card specification assumes existence of a security officer (admin), who has privilege to manage the card. On the other hand, many use cases of Gnuk …

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8. Tool to configure Gnuk Token

   In Gnuk source distribution, there is a script with file name gnuk_put_binary.py which is written in Python.

   Until version 0.11, it directly communicates USB layer with PyUSB. It requires root privilege to stop PC/SC daemon and run the script.

   On 2011-05-11, it is rewritten with pyscard. Pyscard …

   read more

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