Researchers from QinetiQ, the commercial arm of Britain's defence research agency, and their colleagues at Ludwig-Maximilian University in Munich have sent a key for deciphering coded information over a record 14.5 miles of open space between two mountains in Germany.
"This is the only way to distribute keys for encoding data in absolute security without actually sending a guy with a briefcase," John G. Rarity, of QinetiQ, told Reuters.
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