-Caveat Lector- [Tell me if the last sentence of this article didn't come to mind at least once before you came to the end and read it?? -MS] --begin forward-- Scientists use genetic code to send secret messages Discovery adds biological dimension to field of encryption By Stewart Bell National Post Tuesday, June 29, 1999 The search for better ways of sending hidden messages has been the preoccupation of generals and spies for centuries. Now three U.S. researchers have turned the genetic code into a secret code to come up with a way of transmitting "completely undetectable" messages in DNA. A team at Mount Sinai School of Medicine in New York successfully encoded a message on DNA, hid it on a period in an otherwise innocuous letter and sent it through the mail. The recipient was able to easily decode the concealed, though outdated, warning: "June 6 Invasion: Normandy." Detailed in the journal Nature, the discovery adds a biological dimension to the field of encryption, once the domain of armies and diplomats but now a major concern for companies trying to safeguard their data and computer-users sending sensitive e-mail on the Internet. "This appears to be the first time anyone thought of taking advantage of the complexity of DNA to hide messages," said Dr. Carter Bancroft, a professor of physiology and biophysics who led the research team. "Genomic steganography," as its inventors call it, is a modern version of the ancient art of secure communications that dates back to 400 BC, when Spartan military commanders sent messages to each other that could be read only when wrapped around a baton of the right thickness. During the Second World War, German spies shrunk photographed messages and pasted them over a period in a letter, a method J. Edgar Hoover called "the enemy's masterpiece of espionage." Dr. Bancroft and two colleagues at Mount Sinai took the technique a leap further. They began by creating a simple code out of combinations of the four chemical bases of DNA, classified as A, C, G or T. The researchers assigned a different letter of the alphabet or a number to various combinations of the chemical bases. For example, the combination CGA would be decoded as the letter A. The researchers then created strands of artificial DNA, arranging the bases in the right order so as to spell out the message they wanted to send. Twenty "primer sequences" were placed before and after the message to mark the encoded words. The DNA was then mixed with human DNA to further conceal it and the mixture was placed on a dot that appears in a letter as a period. To read the message, the recipient cut the dot out of the letter and employed a technique commonly used in molecular biology to find and analyze the encoded DNA. Decryption is only possible if the recipient knows the code and has at least a rudimentary knowledge of DNA structure -- which suggests spies of the future may have to be as adept at biotechnology as they are at the art of disguise. The result was a message that was virtually impossible for enemies to detect, let alone decode. Even if someone knew there was a DNA message in the letter, the chances of even isolating the right strand of DNA would be one in 30 million. It would then have to be decoded. "It occurred to me one day that the human genome, being exceedingly complex, might be a very good place to hide a secret message written in DNA," Dr. Bancroft told the National Post. "Then I realized that polymerase chain reaction, which is widely employed in molecular biology to amplify up specific pieces of DNA, from the human genome and elsewhere, would be a perfect way to recover the message hidden in DNA." Methods of encrypting information are becoming increasingly sophisticated as companies seek to secure their communications and valuable data. Computer software that will encode and decode messages is now widely available. Canadian law-enforcement officials lobbied to have access to the keys that would allow them to read encrypted messages, but John Manley, the Industry Minister, announced in October that Canadians would be permitted to "develop, import and use whatever cryptography products they wish." Reg Whitaker, a York University professor who specializes in security issues, said it is possible to hide encrypted messages in photographs and even music sent over the Internet. In fact, computer encryption is now so advanced, there may be no need to hide messages in DNA. ================================================================= Kaddish, Kaddish, Kaddish, YHVH, TZEVAOT FROM THE DESK OF: <[EMAIL PROTECTED]> *Mike Spitzer* <[EMAIL PROTECTED]> ~~~~~~~~ <[EMAIL PROTECTED]> The Best Way To Destroy Enemies Is To Change Them To Friends Shalom, A Salaam Aleikum, and to all, A Good Day. ================================================================= DECLARATION & DISCLAIMER ========== CTRL is a discussion and informational exchange list. Proselyzting propagandic screeds are not allowed. Substance—not soapboxing! These are sordid matters and 'conspiracy theory', with its many half-truths, misdirections and outright frauds is used politically by different groups with major and minor effects spread throughout the spectrum of time and thought. 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