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.

Sadiq Khan.

Biarritz

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.