Sublime

The correct use of a strong cipher is a clear boon to sender and receiver, but the misuse of a weak cipher can generate a very false sense of security.

This was clearly a period of history that tolerated a certain lack of urgency.

At the age of just forty-two, one of the true geniuses of cryptanalysis committed suicide.

While al-Kindī was describing the invention of cryptanalysis, Europeans were still struggling with the basics of cryptography.

The Swiss experiment with optic fibers demonstrates that it would be feasible to build a system that permits secure communication between financial institutions within a single city.

The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography

While those who had fought conventional battles could talk of their heroic achievements, those who had fought intellectual battles of no less significance had to endure the embarrassment of having to evade questions about their wartime activities.