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tarsnap-keygen(1)

NAME

     tarsnap-keygen -- generate a key file for use with tarsnap(1)

SYNOPSIS

     tarsnap-keygen --keyfile key-file --user user-name --machine machine-name
                    [--passphrased] [--passphrase-mem maxmem]
                    [--passphrase-time maxtime]
     tarsnap-keygen --version

DESCRIPTION

     tarsnap-keygen generates cryptographic keys, registers with the tarsnap
     server, and writes a key file for use with tarsnap(1).

     The --keyfile, --user, and --machine parameters are all required.

     If the --passphrased option is specified, the user will be prompted to
     enter a passphrase (twice) to be used to encrypt the key file.

     If the --passphrase-mem maxmem option is specified, a maximum of maxmem
     bytes of RAM will be used in the scrypt key derivation function to
     encrypt the key file; it may be necessary to set this option if a key
     file is being generated on a system with far more RAM than the system on
     which the key file will be used.

     If the --passphrase-time maxtime option is specified, a maximum of
     approximately maxtime seconds will be used in the scrypt key derivation
     function to encrypt the key file.