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OS/2 Shareware BBS: Security
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blowfish.zip
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README
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1994-08-29
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README File
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Blowfish is an encryption and decryption utility that uses Bruce Schneier's
public domain Blowfish algorithm. I've just structured an application around
it. It still has a few deficiencies (see TODO) that I might get around to
removing some day after I've finished my thesis.
Blowfish is postcardware. If you like what I've done send me a postcard with
your home town on it.
Oh yeah. I, nor ECU (nor anybody in fact) assume responsibility for anything
blowfish has done, is doing, or will do at an point in time in all dimensions
blah blah blah legalese blah gurgle... Basically you're responsible for
whatever blowfish does or doesn't do to anything when you use it.
─── Man Page ───────────────────────────────────────────────────────────────────
Name:
blowfish v1.0 - Encrypt and decrypt files
Syntax:
blowfish <file>[ <output>]
Synopsis:
blowfish gets a password from the keyboard and either encrypts or
decrypts the given file depending on the number of arguments
passed to it. When blowfish receives two arguments the file named
by the first argument is encrypted; when blowfish receives a single
argument the file identified by the only argument is decrypted.
In all cases blowfish reads a password from the keyboard without
echoing it. This password may be up from 0 to 56 characters long.
When encrypting, blowfish stores the size, a magic number, name, and
contents of the file named by the first argument and encrypts it
using the supplied password. This information is then written to
the file named by the second argument.
When decrypting, blowfish loads the file named by the first argument
and decrypts it using the supplied password. The contents are
then written to the file named in the decrypted file.
Arguments:
<file> The name of the file to encrypt or decrypt.
<output> The name of the file in which the encrypted file is
stored.
Author:
Stephan Bettermann (S.Bettermann@cowan.edu.au)
Department of Computer Science,
Edith Cowan University, Perth, Western Australia.
─── Manifest ───────────────────────────────────────────────────────────────────
README │ You're reading it
TODO │ What I'd like to do with blowfish if I had the time and the
│ inclination
blowfish.exe │ The one and only executable.