Usage: SET ENCRYPT_PROGRAM <encryption program path>
Sets the program used to encrypt messages. The program
selected must take an encryption key as the first line
written to work with ircII, with the second and subsequent
lines the text to be encrypted, which is expected on the
programs standard output.

Note that in ircII 4.4 and previous, this variables program
API was different. Originally the encryption key was the
command line argument, and the program a true filter.
However, it is not secure from local users snooping the
key and being able to decrypt messages, should they obtain
them. Set the OLD_ENCRYPT_PROGRAM variable to ON
to obtain this old behaviour.

See also:
SET DECRYPT_PROGRAM

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