A problem worthy of attackProves its worth by fighting back. Piet Hein
The hotline between the presidents of Russia and America is secured via a onetime pad cipher.
Dispatch riders would race across the world with padlocked briefcases, personally distributing keys to everyone who would receive messages from the bank over the next week. As business networks grew i...
The nineteenth-century mathematician Leopold Kronecker said, God made the integers; all the rest is the work of man.
Správné použití kvalitní šifry je velkou pomocí pro obě komunikující strany, avšak nekorektní zacházení se slabou šifrou může vyvolat velmi falešný pocit bezpečí.
An expert problem solver must be endowed with two incompatible qualities – a restless imagination and a patient pertinacity. Howard W. Eves
Copies were passed to the cryptanalysts, who sat in little kiosks, ready to tease out the meanings of the messages. As well as supplying the emperors of Austria with invaluable intelligence, the Vienn...
We would be in real trouble if everybody in GCHQ was like him, but we can tolerate a higher proportion of such people than most organizations. We put up with a number of people like him. Figure 66 Jam...
Similarly, if you’re trying to prove something mathematically, it’s possible that no proof exists.
Lisa Simpson is the kind of child we not only want our children to be, but also the kind of child we want all children to be.
In addition to a greater understanding of secular subjects, the invention of cryptanalysis aslo depended on the growth of religious sholarship. Major theological schools were established in Basra, Kuf...
Říká se, že zkratka NSA ve skutečnosti znamená „Never Say Anything
Scripts that rely on semagrams tend to have hundreds or even thousands of signs (Chinese has over 5,000).
Alphabetic scripts tend to have between 20 and 40 characters (Russian, for example, has 36 signs, and Arabic has 28).
Zimmermann believed that everybody deserved the right to the privacy that was offered by RSA encryption, and he directed his political zeal toward developing an RSA encryption product for the masses.
This apparently innocuous observation would lead to the first great breakthrough in cryptanalysis.
The three Britons had to sit back and watch as their discoveries were rediscovered by Diffie, Hellman, Merkle, Rivest, Shamir and Adleman over the next three years.
The mathematical life of a mathematician is short. Work rarely improves after the age of twenty-five or thirty. If little has been accomplished by then, little will ever be accomplished.
The first microdot to be spotted by the FBI was in 1941, following a tip-off that the Americans should look for a tiny gleam from the surface of a letter, indicative of smooth film.
Q: What is the volume of a pizza of thickness a and radius z? 3 points A: pi.z.z.a