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TARSNAP-KEYGEN(1) FreeBSD General Commands Manual TARSNAP-KEYGEN(1)

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

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

tarsnap-keygen --version

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

The --keyfile key-file option specifies the name of the file in which to write the newly-generated keys. The --user user-name option specifies the name (i.e. email address) of the Tarsnap account. The --machine machine-name option specifies a name which will be displayed in accounting reports so that you can see how much data each machine is storing.

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.

The --version option prints the version number of tarsnap-keygen, then exits.

February 10, 2022 FreeBSD 13.1-RELEASE

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