idecrypt(8) Encrypted IDENT response decryption utility


idecrypt [file]...


Idecrypt decrypts authentication tokens returned by an identd(8) server that supports encryption. The tokens can be supplied in file, or from the standard input. The decrypted tokens are displayed on the standard output.

This program will attempt to decrypt a token with all the keys stored in the key file until it succeeds (or have tried all the keys).


If compiled with DES encryption enabled, the 1024 first bytes of this file is used to specify the secret key for encrypting replies.


The daemon is free software. You can redistribute it and/or modify it as you wish - as long as you don't claim that you wrote it.

The source code for the latest version of the daemon can always be FTP'd from one of the following addresses:

Main site:

The author can be contacted at:

Peter Eriksson <[email protected]>