The Null Device

Smart kids: The winners of the Intel Science Talent Search:
Viviana studied steganography, a data encryption technique that embeds secret messages within large amounts of seemingly innocent information. She encrypted the message, "JUNE6_INVASION: NORMANDY," inserted it in the gene sequence of a DNA-strand, and flanked it by two secret "primer" DNA sequences. Then she combined the molecule with many other similar molecules. The hidden message could be retrieved only by someone knowing the two secret primer sequences - the keys to the code. Because the pair of primers provides a trillion trillion options, she concludes that the code is essentially unbreakable.

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