September 29 Beijing time, according to foreign media reports, from Tufts University (Tufts University) scientists have developed a bacterial communication signal ciphertext with the method. .Researchers have to cultivate a fluorescent protein of E. coli, can send a total of seven different colors of light, so if the two bacteria as a group, you can through seventy-seven forty-nine kinds of combinations to express the 26 letters, .10 digits plus a few symbols, this way, the transmission of information is very convenient. .

scientists have developed a communication signal with the bacteria ciphertext way

biological spy

bio-spyware

their specific encryption method is steganography, the scientists named it "stain bacterial sequences steganography" (Steganography by Printed Arrays of Microbes, abbreviation of SPAM, .is precisely the meaning of spam). .

ciphertext using this method is also very simple: bacteria, scientists first content line up in accordance with the order of ciphertext and colors, reared in Petri dishes, and then cultivate the bacteria are placed in a .film, to the receipt of the letter side. .Ciphertext who received it, then put a clean film of bacteria on the culture dish in a while, the bacteria will naturally look to the original layout of the long out of the final order and then by color and contrast, you can read the ciphertext .. .For without the knowledge of others, this is a colorless, odorless film is not something just a little mixed, deception is also very feasible. .

leading research scientist David Walt said, perhaps more importantly, people can be achieved by modifying the genes of bacteria of many different effects, such as after a period of time so that no bacteria in the light, then into .the "self-destruct ciphertext outdated", but also control bacteria such as certain antibiotics, only to respond, then the recipient must be added to this particular antibiotic in order to obtain information, or only see "garbage" and even a "key error ."warning message, and so many others. . Although the use of this research is only a temporary stage in theory, want to get a real practical effect of further research is needed to improve, but these things have been bio-spyware is the impossible to possible, in order to have unexpected .better stealth effect. . 5.