SYMCRYPTRUN(1)							 GNU Privacy Guard						    SYMCRYPTRUN(1)

NAME

       symcryptrun - Call a simple symmetric encryption tool

SYNOPSIS

       symcryptrun --class class --program program --keyfile keyfile [--decrypt|--encrypt] [inputfile]

DESCRIPTION

       Sometimes  simple  encryption  tools are already in use for a long time and there might be a desire to integrate them into the GnuPG frame-
       work.  The protocols and encryption methods might be non-standard or not even properly documented, so that a full-fledged  encryption  tool
       with  an interface like gpg is not doable.  symcryptrun provides a solution: It operates by calling the external encryption/decryption mod-
       ule and provides a passphrase for a key using the standard pinentry based mechanism through gpg-agent.

       Note, that symcryptrun is only available if GnuPG has been configured with '--enable-symcryptrun' at build time.

       For encryption, the plain text must be provided on STDIN or as the argument inputfile, and the ciphertext will be output  to  STDOUT.   For
       decryption vice versa.

       CLASS  describes the calling conventions of the external tool.  Currently it must be given as 'confucius'.  PROGRAM is the full filename of
       that external tool.

       For the class 'confucius' the option --keyfile is required; keyfile is the name of a file containing the secret key, which may be protected
       by a passphrase.  For detailed calling conventions, see the source code.

       Note, that gpg-agent must be running before starting symcryptrun.

       The following additional options may be used:

       -v

       --verbose
	      Output additional information while running.

       -q

       --quiet
	      Try to be as quiet as possible.

       --homedir dir
	      Set the name of the home directory to dir. If this option is not used, the home directory defaults to '~/.gnupg'.  It is only recog-
	      nized when given on the command line.  It also overrides any home directory stated through the environment variable  'GNUPGHOME'	or
	      (on W32 systems) by means of the Registry entry HKCUSoftwareGNUGnuPG:HomeDir.

       --log-file file
	      Append all logging output to file.  Default is to write logging information to STDERR.

	      The possible exit status codes of symcryptrun are:

       0
		      Success.

       1
		      Some error occured.

       2
		      No valid passphrase was provided.

       3
		      The operation was canceled by the user.

SEE ALSO

       gpg(1), gpgsm(1), gpg-agent(1),

       The full documentation for this tool is maintained as a Texinfo manual.	If GnuPG and the info program are properly installed at your site,
       the command

	 info gnupg

       should give you access to the complete manual including a menu structure and an index.

GnuPG 2.0.19							    2014-06-26							    SYMCRYPTRUN(1)