Responding to msg by a.brown@nexor.co.uk (Andrew Brown) on Wed, 3 Aug 1:17 PM Andy: Features for concealment of plain or cyphertext by CAD programs: 1. Plain or cyphertext can be imported by each letter, by sentence, by block of text; then manipulated by the CAD program as one or multiple concealed CAD entities. 2. Text manipulation includes: Reduce to any scale. Place on hidden layers. Hide by other entities. Distort to a variety of shapes. And otherwise disfigure the text into non-recognizable forms. 3. In addition, there are a host of CAD-features for further, multiple, transformations of the text, including algorithmic permutations. 4. Subsequent manipulation of the CAD document may include exporting to other proprietary and generic CAD formats. 5. CAD document may then be transmitted plain (in the selected CAD format) or encrypted for transmission. 6. The recipient uses a CAD program (and decryption program if needed) to restore the concealed text to its original encrypted form. It is exported to the original encryption program for decryption. 7. Caveat 1: While this manipulation will be invisible or camouflaged in the CAD document the underlying code of the program will provide clues. However, it should be possible to encrypt these clues. 8. Caveat 2: Sender and recipient will need to exchange protocols, by encrypted transmission probably, for restoring the concealed text. 9. Caveat 3: This is not elegant and requires little or no crypto competency. But it can be easily done by a CAD operator to help conceal sophisticated crypto. Comments? John, an architect of the building codes domain.