Tag: Richard Bean - article author
Declassified Cold War code-breaking manual has lessons for solving ‘impossible’ puzzles
Picture: NSA
The United States National Security Agency — the country’s premier signals intelligence organisation — recently declassified a Cold War-era document about code-breaking.
The 1977 book, written...
Cryptology from the crypt: how I cracked a 70-year-old coded message from beyond the grave
The American Survival Research Foundation offered a reward of
$1,000 for cracking one of Thouless’s two codes within three years of his death....