-----BEGIN PGP SIGNED MESSAGE----- On Monday, 19-Sep-94 Lile Elam wrote to cypherpunks:

Well, it looks like I have to delve into this subject as I should really know what's available for signing art.

PHOTO>Electronic Imaging vol. 37 no. 6, 1994 had a couple of very comprehensive articles on copyright protection trends. The list of available products included: * Stego (Mac shareware) which can embed data in and retrieve data from PICT images w/o changing the appearance or size. They plan to add other image formats as well as audio and video for both Mac & PeeCee platforms. * Nikon is developing a method of incorporating an electronic signature into their digital cameras. This signature would include lens settings, exposure, time/date, plus the photographer's personal digital signature. They want it to be compatible with AOCE (below). * AOCE (Apple Open Collaboration Environment technology) is integrated into Mac System 7 Pro as Digital Signature Manager and, guess what, it uses RSA licensed public-key encryption. * Kodak and RSA are working on an encryption scheme for photo CDs where only the low-res images are freely viewable, the hi-res ones require a key to access. * Common Ground (Mac & PeeCee) saves text and images as a Portable Document Format(PDF) and has security built-in that can restrict the text/graphics from being copied or printed. * Kodak Pro Photo CD allows copyright information and color settings to be tagged onto any image. This information can latter be read by Kodak Photo CD Access Plus or Photo CD programmer's toolkit. * (icky toggle methods not transcribed) For futher reading they suggest, "Protecting Intellectual Property Rights on the Information Superhighways" by Joseph L. Ebersole. The paper includes discussion of laws, copyright management, encryption, standards, and glyphs-to-video steganography. Published by the Information Industry Association(IIA), Washington, D.C. -----BEGIN PGP SIGNATURE----- Version: 2.6.1 iQCVAwUBLoE6ud2dg1OWsljdAQF8LAQAp0z5bF0IoZtf4W78WvPBkrfcSFPpoQhN +twh6XSZlA9tVlWhNEVwtEU2tTiHvJckjNxHEtk8hFdJwkMkV1ZXbz90iTkQbQ09 99xtMPRdn35dX8mPKRZ3VMq19DxW0bYDkZcjsuHLvPbM6Oj1jcXSnX8inFPX/AvZ kvXbE2giJDA= =mHql -----END PGP SIGNATURE----- --- CNet XFIDO 2.63 * Origin: *AACHEN* 818-972-9440 Burbank, CA FIDONET (1:102/844) -- : Brian McMurry - via mcws.fidonet.org - Public Access (213)256-8371 : ARPA/INTERNET: Brian.McMurry@f844.n102.z1.fidonet.org : UUCP: ...!bengal!mcws!844!Brian.McMurry : Compu$erve: >internet:Brian.McMurry@f844.n102.z1.fidonet.org