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.
When ships carrying COMSEC material came into dock, crypto-custodians would march onboard, collect stacks of cards, paper tapes, floppy disks, or whatever other medium the keys might be stored on, and...
What is the least number of weights that can be used on a set of scales to weigh any whole number of kilograms from 1 to 40?
Cryptanalysis could not be invented until a civilization had reached a sufficiently sophisticated level of scholarship in several disciplines, including mathematics, statistics, and linguistics. The M...
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 best random keys are created by harnessing natural physical processes, such as radioactivity, which is known to exhibit truly random behavior. The
Q: What is the volume of a pizza of thickness a and radius z? 3 points A: pi.z.z.a
Most of the codebreakers returned to their civilian lives, sworn to secrecy, unable to reveal their pivotal role in the Allied war effort. While those who had fought conventional battles could talk of...
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...
The First World War was the chemists’ war, because mustard gas and chlorine were employed for the first time,
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.
If N is large enough, it is virtually impossible to deduce p and q from N, and this is perhaps the most beautiful and elegant aspect of the RSA asymmetric cipher.
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...
Polský úspěch v prolomení Enigmy byl dán třemi faktory: strachem, matematikou a špionáží.
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...
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 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.
Euclid discovered that perfect numbers are always the multiple of two numbers, one of which is a power of 2 and the other being the next power of 2 minus 1.
Secret communication achieved by hiding the existence of a message is known as steganography
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