tarsnap-keyregen man page on DragonFly

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TARSNAP-KEYREGEN(1)	  BSD General Commands Manual	   TARSNAP-KEYREGEN(1)

NAME
     tarsnap-keyregen — generate a key file for use with tarsnap-recrypt(1)

SYNOPSIS
     tarsnap-keyregen --keyfile key-file --oldkey old-key-file --user
		      user-name --machine machine-name [--passphrased]
		      [--passphrase-mem maxmem]

DESCRIPTION
     tarsnap-keyregen generates a set of cryptographic keys which are compati‐
     ble with an existing set of cryptographic keys, registers with the
     tarsnap server, and writes a key file for use with tarsnap-recrypt(1) and
     tarsnap(1).  The term "compatible" here means that it is possible to re-
     encrypt archives stored with the first set of keys to be stored with the
     second set of keys.

     The --keyfile, --user, --machine, and --oldkey 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.

BSD			       January 23, 2011				   BSD
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