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yhsm-keystore-unlock(1)


NAME

   yhsm-keystore-unlock  Unlock the keystore in a YubiHSM

SYNOPSIS

   yhsm-keystore-unlock [options]

DESCRIPTION

   In  versions  of the YubiHSM before 1.0, the YubiHSM could be protected
   using a 'HSM password'. The YubiHSM  would  unlock  it's  cryptographic
   functions  if  the  correct  password  was  given,  but it was a simple
   comparison test.

   In YubiHSM 1.0, the password was changed into an actual  key  that  was
   used  to  decrypt the contents of the YubiHSM internal key store, which
   was then AES-256 encrypted using the new 'Master key'  when  stored  in
   the device.

   In YubiHSM 1.0, the option to also require an YubiKey OTP to unlock the
   keystore was also added. One or more 'Admin YubiKeys' can be configured
   in  the  YubiHSM,  and  an  OTP from one of these must also be provided
   before the YubiHSM will enable it's cryptographic functions.

   The OTP is simply validated against the non-encrypted internal database
   (not key store) in the YubiHSM though, but together with a 'Master key'
   not stored on  the  server  with  the  YubiHSM,  it  provides  enhanced
   security by being a second factor that an attacker can't just intercept
   even if the server is compromised.

OPTIONS

   -D, --device
          device file name (default: /dev/ttyACM0).

   -v, --verbose
          enable verbose operation.

   --debug
          enable debug printout, including all data sent to/from YubiHSM.

   --no-otp
          skip the prompt for an OTP. For use by scripts where no  OTP  is
          required  and  the  Master  Key is stored on the server with the
          YubiHSM.

   --stdin
          read password and/or OTP from stdin rather  than  prompting  for
          them.   Python  prompts  does  not  accept  piped input, so this
          option have to be used to unlock the YubiHSM from a  script  for
          example.

EXIT STATUS

   0   YubiHSM keystore successfully unlocked.

   1   Failed to unlock keystore.

BUGS

   Report python-pyhsm/yhsm-keystore-unlock bugs in the issue tracker
   https://github.com/Yubico/python-pyhsm/issues/

SEE ALSO

   The home page https://developers.yubico.com/python-pyhsm/

   YubiHSMs can be obtained from Yubico http://www.yubico.com/.



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