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Category Archives: cryptanalysis
As Singh indicates in his The Code Book, the Beale Ciphers have gone unbroken for over a hundred years, the best and brightest minds of recent decades pouring hours upon hours into the effort of deciphering them. Unfortunately, their work, as of yet, has borne no fruit. Ultimately, this begs the question: why do people continue […] Continue reading
In the post titled “The Allies Work Better Under Pressure,” the author argues that the Allied success in breaking the Enigma cipher was in large part due to the pressure to defend against the German offensive. He says that the threat of invasion and loss of lives motivated the Allies to put more of their […] Continue reading
In reality, the knowledge that Britain had deciphered Germany’s codes should have remained a secret for several more decades. Regardless of the reasoning, staying ahead of the opponent, even in a time of peace, provides tactical advantages on many fronts. I believe, however, that pride and competition with the United States ultimately lead Churchill and […] Continue reading
As Singh deciphered the example of the Vigènere cipher on page 116, and also other ciphers previously, I contemplated just how simple he was making them. He makes a lot of assumptions, and he also never points out some flaws that I have seen in his messages. In the example on page 16, Singh uses […] Continue reading
Singh’s examples in book seem easy to comprehend. The methods are relatively straightforward and codes were broken within few pages of the book. However, in practice the process of cryptanalysis is usually much more complicated. I believe there are three reasons for that. First of all, the cryptanalyst has no idea what type of code […] Continue reading
The strength of the Vigenère Cipher depends largely on the length of the keyword. If the keyword is just one letter, then it is nothing more than a simple shift cipher; if the keyword is the same length as the plain text, there will be little to no discernable pattern. However, Singh clearly demonstrates that even with […] Continue reading
The status quo of cryptography can be accurately represented by a game of tennis between two equally good players. When a strong cipher is developed, the ball moves to cryptanalysis. Upon development of better decryption techniques, the ball returns back to the court of the encryptors. The period in which an event happens in the […] Continue reading
An environment in which one knows he or she must constantly maintain precautions is safer than one where they are unaware of the dangers that potentially exist. This concept is exemplified in the case of Mary Queen of Scots by the simple fact that her naive belief that she was speaking in secrecy directly […] Continue reading
The unbroken Beale ciphers, likely enciphered using a book cipher, will remain nearly impossible to break until we figure out what key text was used to encipher them. Despite this, cryptanalysts have been trying to decipher the messages using various key texts, essentially guessing and checking in the hopes that they stumble upon the correct […] Continue reading
For one who is not well-versed in “cryptography,” hearing the word might simply bring to mind the language game Pig Latin. However, Singh is trying to convey, in layman’s terms, that cryptography is not a child’s game for all; in Mary Queen of Scots’ case, it was literally an instance of life or death. The […] Continue reading