RE: Encryption Program

["Richard Jackson" <richardjackson@xxxxxxxxxxxxxxxxxx>]

thinking about the password field are we :)

If you use RPG, you can switch the upper and lower 4-bit nibbles.  You can
also XOR a 10-byte value against a constant.  As your ambition (or your
requirement for security) grows, you may try Playfair, mono-alphabetic
substitution, poly-alphabetic substitution, DES and it variations, Rijndael
(the AES selection), any of the public-key techniques using two prime-number
factors, or quantum crypto.  What you choose depends on how long it has to
last and how good you think that your attacker is.

Richard Jackson
mailto:richardjackson@richardjackson.net
http://www.richardjacksonltd.com
Voice: 1 (303) 808-8058
Fax:   1 (303) 663-4325

-|-----Original Message-----
-|From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
-|Behalf Of Quazy
-|Sent: Tuesday, October 10, 2000 12:11 PM
-|To: rpg400-l@midrange.com
-|Subject: Encryption Program
-|
-|
-|I am wondering if anyone has written a program that will take a
-|field up to
-|10 digits/characters, and will encrypt it.   Then you can take and enter
-|the encrypted characters/digits and it will then produce the original
-|data.
-|
-|If you have written a program like this would you be willing to share it,
-|or give some advice at how to go about doing this.
-|
-|
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