--- begin forwarded text X-Authentication-Warning: blacklodge.c2.net: majordom set sender to owner-cryptography@c2.org using -f From: proff@iq.org Date: 6 Nov 1997 06:35:37 -0000 To: cryptography@c2.net Subject: new lanl patent? Sender: owner-cryptography@c2.net From: "Jongsma, Ken (NM75)" <ken.jongsma@das.honeywell.com> Date: 24 Oct 1997 10:32:24 -0600 Subject: Hiding In Plain Sight from the Oct 20 Aviation Week: "Researchers at Los ALimos National Laboratory have patented a new software technique that can hide secret information in the electronic "noise" associated with the transmission of data and electronic images. Called "data embedding," the method allows classified data to be stored and transferred in open transmissions and can serve as an "electronic watermark" to prevent unauthorized manipulation of digital images and other information, according to Ted Handel, project leader. The software can be used on a desktop personal computer and consumes only 512 kilobytes of memory, less than most word processing programs. It is written in "C" computer language which conforms to virtually any digital storage medium. Overall document length can remain the same." Aside from the obvious errors in the story, do you suppose that someone ought to clue the patent office in that steganography has existed for quite a while now? If anyone would like to research the patent and report back, it would be interesting to see what is so unique that the could get a patent on it. -- ken.jongsma@das.honeywell.com 505 828-5876 Voice 505 828-5500 Fax --- end forwarded text ----------------- Robert Hettinga (rah@shipwright.com), Philodox e$, 44 Farquhar Street, Boston, MA 02131 USA "... however it may deserve respect for its usefulness and antiquity, [predicting the end of the world] has not been found agreeable to experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire' The e$ Home Page: http://www.shipwright.com/ Ask me about FC98 in Anguilla!: <http://www.fc98.ai/>
-----BEGIN PGP SIGNED MESSAGE----- Some interesting hits for "data embedding" on IBM's patent server page... http://patent.womplex.ibm.com/details?patent_number=5671277 ISSUED: Sep. 23, 1997 FILED: Oct. 21, 1994 Snip of abstract: Additional data useful for the management of copies of a document for an image forming apparatus is embeddedin a hard copy of the document. The additional data is embedded in an inherent image of a document as pixels arranged in a prescribed format, and, preferably, the size of the pixels is such as to not be easily recognized with the naked eye. http://patent.womplex.ibm.com/details?patent_number=5659726 ISSUED: Aug. 19, 1997 FILED: Feb. 23, 1995 ABSTRACT: A method of embedding auxiliary information into a set of host data, such as a photograph, television signal, facsimile transmission, or identification card. All such host data contain intrinsic noise, allowing pixels in the host data which are nearly identical and which have values differing by less than the noise value to be manipulated and replaced with auxiliary data. As the embedding method does not change the elemental values of the host data, the auxiliary data do not noticeably affect the appearance or interpretation of the host data. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user. The patent office needs a fucking clue server. Hmmm... wonder if I can get a patent for one? - ------------------------ Name: amp E-mail: amp@pobox.com Date: 11/07/97 Time: 05:33:04 Visit me at http://www.pobox.com/~amp == -export-a-crypto-system-sig -RSA-3-lines-PERL #!/bin/perl -sp0777i<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<j]dsj $/=unpack('H*',$_);$_=`echo 16dio\U$k"SK$/SM$n\EsN0p[lN*1 lK[d2%Sa2/d0$^Ixp"|dc`;s/\W//g;$_=pack('H*',/((..)*)$/) == 'Drug Trafficking Offense' is the root passphrase to the Constitution. Have you seen http://www.public-action.com/SkyWriter/WacoMuseum - ------------------------ -----BEGIN PGP SIGNATURE----- Version: 4.5 Comment: Strong Encryption Is Your Friend iQEVAgUBNGL+M/pLP0N7vZi7AQEkHwf+KzUSyeEJ6vk/AY3PMQHH0ra6F7A21UlW pcrU1GqORY2Rkr7EtgjzMEVNWtfYK9RQQxIBLYlnehl/4lM48ys7Lj4bN93Ukuh8 OUFviZNNBsAi+M8b7utKGeMCkoSr0T5xwY34DRfN5mBVRRc9NDy/ONjNGcGuYEGr SXNcAK7xl5e1j2vmp8jDHRQlqDN1ITGy64HuGa6ZNIzNg8BU4tEES1bHCjsEB3wP 516fdGoVjRj+D/sqFJPhvKfUAskhfuPMtqD776AMgmMQm/rMMlfsQfTVfZjVdVtv ueB6q75oOkSEstp8Xg8e6s9aaHVYp3uv55yyTO8tu+u1Zc65mZ/eJA== =j/8r -----END PGP SIGNATURE-----
participants (2)
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amp＠pobox.com -
Robert Hettinga