In <[log in to unmask]> [log in to unmask] writes:

> We're looking at the possibility of encrypting data in selected fields
> in one or two TurboImage datasets, and I'm looking for anyone else who
> has either done this or knows of some software which would allow us to
> accomplish this.  I'm not sure this is the answer because of issues
> regarding security of the routines and keys required to encrypt and
> decrypt the data to/from the application, for example.  However, I'm
> open to suggestions from the list.  Is canned software available which
> can be incorporated into existing code or used in an XL?

DES source code is available in the public domain... As long as you're not
creating software you plan on exporting, pick up the DES source code (in C)
which compiles without modification on the 3000 and use it to encrypt/decrypt
your data... can't get much better than that, and since it sounds like you're
going to be encrypting/decrypting on the same system and don't need to worry
about distributing keys (too much) DES sounds like the easiest solution (and
it's free and VERY secure --if you use a long-enough keylength).

If you need the source code let me know- I have it handy [though I'm not ABOUT
to post it to the list! ;-) ]. It's also available in printed form in Bruce
Schneier's Applied Cryptography; or on diskette from the author for a small
fee (along with dozens of other algorythms).

          -Chris Bartram