FORT HUACHUCA, Ariz. -- When Ralph Van Deman established the War Department's intelligence organization shortly after the United States entered World War I, he was faced with the daunting task of ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MYSTERY WIRE — The United States Federal ...

The files include operating instructions for the SG-41, encryption rules and key tables used during the closing weeks of the ...

You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...

For 51 years, one of the Zodiac Killer’s puzzling codes he sent in letters to newspapers in the late 1960s and early 1970s has confounded the cryptography community, law enforcement and curious ...

A coded message sent by the Zodiac Killer to the San Francisco Chronicle in 1969 has finally been cracked, the newspaper reported Friday. A team of code breakers solved the vexing cryptogram after 51 ...

SAN FRANCISCO -- Experts have solved the code in the "340 Cipher" sent to the San Francisco Chronicle in 1969 by the Zodiac Killer, the elusive figure who terrorized California's Bay Area decades ago ...

How does a cipher and code, used by a failed politician, dropped into the middle of a trial for treason in 1807, involving then-president Thomas Jefferson and Chief Justice John Marshall, lead to a ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...

SAN FRANCISCO (KGO) -- Experts have solved the code in the "340 Cipher" sent to the San Francisco Chronicle in 1969 by the Zodiac Killer, the elusive figure who terrorized the Bay Area decades ago and ...