They called the Navajo language a weird succession of guttural, nasal, tongue-twisting sounds … we couldn’t even transcribe it, much less crack it.
The French had handed the information from Schmidt to the Poles because they believed it to be of no value, but the Poles had proved them wrong.
Rejewski had no idea of the day key, and he had no idea which message keys were being chosen, but he did know that they resulted in this table of relationships. Had
Polský úspěch v prolomení Enigmy byl dán třemi faktory: strachem, matematikou a špionáží.
He was a rather quirky worker, and he didn’t really fit into the day-to-day business of GCHQ. But in terms of coming up with new ideas he was quite exceptional. You had to sort through some rubbish so...
Had the Arabs merely been familiar with the use of the mono-alphabetic substitution cipher, they would not warrant a significant mention in any history of cryptography. However, in addition to employi...
Enigma was considered invulnerable, until the Poles revealed its weaknesses.
Each member of the school was forced to swear an oath never to reveal to the outside world any of their mathematical discoveries.
Chinese wrote messages on fine silk, which was then scrunched into a tiny ball and covered in wax. The messenger would then swallow the ball of wax.
Impenetrability of the Navajo code was all down to the fact that Navajo belongs to the Na-Dene family of languages, which has no link with any Asian or European language.
The security of a cryptosystem must not depend on keeping secret the crypto-algorithm. The security depends only on keeping secret the key.
The NSA employs more mathematicians, buys more computer hardware, and intercepts more messages than any other organization in the world.
Syllabic scripts occupy the middle ground, with between 50 and 100 syllabic characters. Beyond these two facts, Linear B was an unfathomable mystery.
Jack Good, a veteran of Bletchley, commented: Fortunately the authorities did not know that Turing was a homosexual. Otherwise we might have lost the war.
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...
Enigma decipherments gave the locations of numerous U-boats, but it would have been unwise to attack every single one of them, because a sudden, unexplained increase in successful British attacks woul...
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...
All that was required to measure the planet was a man with a stick and a brain. In other words, couple an intellect with some experimental apparatus and almost anything seems achievable.
A large amount of identically encrypted material provides a cryptanalyst with a correspondingly larger chance of identifying the key.
The numerous losses were either the result of natural misfortune or caused by a British spy who had infiltrated the German navy. The breaking of Enigma was considered impossible and inconceivable.