Dennis:

One solution I have used before.

Take the decimal equivalent of each byte character and on every even 
bytes subtract a certain decimal number and one every odd byte add the 
same decimal number and then convert it back to a byte character.

Don't forget to keep the number of people knowing the encryption to a 
minimum and do code it in a program with. documentation.

Olav.

Dennis Stoner wrote:

>Hello everyone,
>
>I'm looking for some help from the MPE veterans out there.  I'm researching encryption libraries for the MPE platform.  Does anyone know of a library (either commercial or open source gpl) that works on MPE?  
> 
>I'm specifically looking for an encryption algorithm like Blowfish that will encrypt data in the same footprint as the original data.  i.e. Start with 16 bytes unencrypted, when it's encrypted, it's still 16 bytes.
>
>Thank you,
>
>Dennis Stoner
>
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