Quote by David Kahn

“The Arabic knowledge of cryptography was fully set forth in the section on cryptology in the Subh al-a ‘sha, an enormous, 14-volume encyclopedia”

— David Kahn

“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

“Much of the history of cryptology of this time is a patchwork, a crazy quilt of unrelated items, sprouting, flourishing, withering. Only toward the…

— David Kahn

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

— David Kahn

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

— David Kahn

The Arab world is also the world that produced some of the greatest improvements in mathematics and in science. Even today, when a Princeton…

— Amartya Sen

A colleague once told me that the world was full of bad security systems designed by people who read Applied Cryptography

— Bruce Schneier

All the sciences came to exist in Arabic. The systematic works on them were written in Arabic writing.

— Ibn Khaldun

“the most famous of all those who had an acquaintance with cryptology in the Middle Ages was an English customs official, amateur astronomer, and…

— David Kahn

“One cannot, therefore, understand Arabic science without considering the extent to which Islam influenced scientific and philosophical thought. Arabic science was, throughout its golden…

— Jim Al-Khalili

“Extremist sects in Islam cultivated cryptography to conceal their writings from the orthodox.”

— David Kahn

Science and knowledge, especially that of philosophy, came from the Arabs into the West.

— Georg Wilhelm Friedrich Hegel