First time Quote by David Kahn

“It uses twenty-six substitution ciphers,” he told her. “One for each letter of the alphabet. But the problem is that it requires a keyword…

— Christa Faust

“But of any science of cryptanalysis, there was nothing. Only cryptography existed. And therefore cryptology, which involves both cryptography and cryptanalysis, had not yet…

— David Kahn

“Cryptology was born among the Arabs. They were the first to discover and write down the methods of cryptanalysis. The people that exploded out…

— David Kahn

“Also of great importance in the discovery of linguistic phenomena that led to cryptanalysis was the development of lexicography.”

— David Kahn

“He served as a cryptanalyst with the American Expeditionary Forces in World War I, and returned to River-bank to write an 87-page tract that…

— David Kahn

“Analyzing the frequency and contacts of letters is the most universal, most basic of cryptanalytic procedures.”

— David Kahn

“the use of atbash in the Bible sensitized the monks and scribes of the Middle Ages to the idea of letter substitution. And from…

— David Kahn

“General Joseph O. Mauborgne, who became Chief Signal Officer in October, 1937. Mauborgne had long been interested in cryptology. In 1914, as a young…

— David Kahn

“In the 1970s and 1980s, though, mathematicians at Stanford and MIT made a series of breakthroughs that made it possible, for the first time,…

— Nathaniel Popper

“Cryptology served magical purposes frequently throughout the Middle Ages, and even in the Renaissance was still disguising important parts of alchemical formulas.”

— David Kahn

My favorite method of encryption is chunking revolutionary documents inside a mess of JPEG or MP3 code and emailing it off as an "image"…

— Kenneth Goldsmith

“All this stained cryptology so deeply with the dark hues of esoterism that some of them still persist, noticeably coloring the public image of…

— David Kahn