As a society, we rightly adore our great musicians and novelists, yet we seldom hear any mention of the humble mathematician. It is clear that mathematics is not considered part of our culture. Instea...
An astronomer, a physicist, and a mathematician (it is said) were holidaying in Scotland. Glancing from a train window, they observed a black sheep in the middle of a field. How interesting, observed...
„Lidé zapojení do debaty o šifrování jsou vesměs inteligentní, čestní a jsou pro depozici klíčů, ale nikdy nemají více než dvě tyto vlastnosti najednou.
Although there are plenty of numbers whose divisors add up to one less than the number itself, that is to say only slightly defective, there appear to be no numbers that are slightly excessive.
Turing’s secret had been exposed, and his sexuality was now public knowledge. The British Government withdrew his security clearance. He was forbidden to work on research projects relating to the deve...
The only people who are in a position to point out my errors are also those who are not at liberty to reveal them.
The fundamental weakness of the Vigenère cipher is its cyclical nature. If the keyword is five letters long, then every fifth letter of the plaintext is encrypted according to the same cipher alphabet...
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.
The core principle of the trial is simple and can be traced back as far as the 13th century, when the Holy Roman Emperor Frederick II conducted an experiment to find out the effects of exercise on dig...
The NSA employs more mathematicians, buys more computer hardware, and intercepts more messages than any other organization in the world.
The German military were equally unenthusiastic, because they were oblivious to the damage caused by their insecure ciphers during the Great War. For example, they had been led to believe that the Zim...
The Brotherhood was effectively a religious community, and one of the idols they worshiped was Number.
Secret communication achieved by hiding the existence of a message is known as steganography
Second World War was the physicists’ war, because the atom bomb was detonated.
Quantum cryptography is an unbreakable system of encryption.
It is quite possible that British Intelligence demanded that Babbage keep his work secret, thus providing them with a nine-year head start over the rest of the world.
In April 1977, Rivest, Shamir and Adleman spent Passover at the house of a student, and had consumed significant amounts of Manischewitz wine before returning to their respective homes some time aroun...
I recall thinking that this paper would be the least interesting paper that I will ever be on. Adleman could not have been more wrong. The system, dubbed RSA (Rivest, Shamir, Adleman) as opposed to AR...
Even the Vatican, probably the second most active center of cryptanalysis, would send Soro seemingly impenetrable messages that had fallen into its hands. In 1526, Pope Clement VII sent him two encryp...
During a security briefing at the White House, Defense Secretary Donald Rumsfeld breaks some tragic news: Mr President, three Brazilian soldiers were killed yesterday while supporting U.S. troops. My...