Cryptography

The History and Mathematics of Codes and Code Breaking

Author: Oliver Zhu

What raised the popularity of ciphers among the public

As Singh noted in the book: ” In the latter half of the 19th century, there was an enormous growth of interest in ciphers among the general public.” Ciphers are used a lot more frequently in people’s daily lives. Several reasons helped raise the popularity of ciphers among the public.

      The improvement of technology and educational levels would be one of the main causes. Mathematical methods such as frequency analysis are essential for deciphering or encrypting ciphers. Those methods which were not available in the past began to be recognized and used by the general public, which leads to the flourishing of ciphers in the society.

           The wide uses of ciphering are the most important cause of the rising popularity of ciphers. After several incidents happened, people began to understand the need to protect personal messages of a highly sensitive nature. For people with personal or commercial secrets, sending out ciphered text is the best way for their secrets to be kept. For young lovers in Victoria England where public expressing affection was forbidden, the cipher was a great way for them to communicate with each other. For writers wishing to criticize public figures or organizations, encrypted messages can be sent without being noticed but with the same effect of criticizing the newspapers. For example, The Times once carried a notice without knowing that it was meant to criticize its own paper which was described as a mouthpiece of the government. For letter writers wanting to send out letters with a lower cost, it’s much cheaper to send out the message via newspaper using pinprick encryption. The ciphering is used in such a wide range that everyone can make their life easier by using the ciphering methods. That explains why there’s an enormous growth of interest in ciphering among the public.

          Curiosity toward uncertainty is also one reason that people are crazy about enciphering. When I first got into the process of deciphering an encrypted message, the sense of completion came to me every time I found out the true meaning of a letter. This sense was even more significant in the 1950s when message encrypting was not used that often. Encrypting appeared only in the science fictions books or used by the government secret agents in the past. Think about the sense of accomplishment when you decrypted some codes which were used by secret agents. The proud when the message appeared between the lines of seemingly disorder letters. The sense of exploration when people use this cool and mystery way to read and send messages was responsible for the rise in interest in the past and also today. Puzzles and other intellectual questions can be seen anywhere. With the technology and mathematical methods further improved, we can say that interest in ciphers among the general public today is even more significant than that of in the past.

Personal privacy need to be respected.

      The scene that hit me the most in the book The Little Brothers is what Winston faced and experienced in the jail and how he reacted to them. Although I heard a lot of rumors about how it works in jail system, it still surprised me of what they can do to a high school student who is probably not an adult yet. All the system, no matter the right of personal privacy or right to have an attorney, even the right to protect the juveniles failed to function  in front of the undecided charge on the teenager. Even worse they treated him badly both physically and psychologically just because of a crime that he was never ever involved in.  “She didn’t want me to just unlock the phone. She wanted me to submit to her. To put her in charge of me. To give up every secret, all my privacy.” The sense of despair in the tone is filling all between the words.

       I used to hold the firmly belief that security is much more important than personal privacy. That I can sacrifice my little privacy for the sake of everyone in the society. And that’s probably what I’m gonna do if I’m in Winston’s situation. But seeing how Winston react to military threats. I began to think that my view toward this question is probably too superficial. I only considered my case whose personal privacy doesn’t mean too much for himself. For many other people it might means quite a lot. In this case for Winston it’s not something too much to talk about. “It’s his past doing’s coming back to him.” Instead, for lots of people, no matter the Business man having commercial secrets or even a cook with a secret recipe that made them successful, everyone need to keep something from the others to protect themselves and their results and personal life.It’s unfair for them to keep us their hardworking and daily life for a little safety which is not that approachable. Sometimes it’s even only someone’s trick to be in charge. It felt really embarrassing to let anyone know what you thinking about and know whatever anything happening to you. Just as the metaphor used in the passage of what it’s like to squat on the toilet in the centre of the Times Square. The book changed my view toward this question. Sometimes the sacrifice of privacy to trade safety is not used in a good way, but to monitor and control people instead. People’s personal privacy needs to be respected.

Data mining for the good of everyone

In his essay “Mining student data could save lives”, Michael Morris employed several examples to put forward his argument that college should use data-mining methods to predict and prevent potential crime and violence on campus. He utilized the example that schools are not allowed to use the information in the student’s record before and the benefits after changing the rules to illustrate that data mining is necessary for protection of everyone.

       As the question of privacy and safety been raised again. I personally agree with the author’s view. Data mining, as suggested, can help the officers analyze the students’ online activities and identify when it’s tend to become a threat to the campus. Some people may argue that we will have no privacy at all. However, this is a digital world now. Hackers can easily get people information if them want. Privacy nowadays is not as valuable as it used to be in the past. From my own perspective, I’d prefer to trade that little privacy for the precious safety of my own. What’s more, for students, there’s not so much secret that we need to protect for ourselves. We are not making secret contacts in the old spy movies. It won’t matter if our daily chat with friends was used for data mining. The school only means to help protect the students not monitoring them. Using the “Crystal ball” to “predict the future” can certainly reduce lots of unnecessary loss.

       Data mining can not only prevent the crime but also can help the students in other ways. If the students are showing to much stress or anxious, they can be reached for help if they are too shy to turn for help. We should always hold the belief that the university is thinking the best for us. They are trying to protect and help instead of monitoring or destruction. Overall, if the data mining can work as it meant to be, I do believe that it will be worth it to sacrifice a little privacy for help and safety of everyone.

Cryptography 1

        As the author of the code book, Simon Singh, writes, “Cryptanalysis could not be invented until a civilization had reached a sufficiently sophisticated level of scholarship in several disciplines, including mathematics, statistics, and linguistics.” People’s interest and skills toward all kinds of puzzles including cryptogram are getting developed fast in this day or age . Back into my primary school time ,I saw a sukodu puzzle on the newspaper for the first time. The shape and numbers on it suddenly caught my mind. A great sense of proud came to me when I first learnt and finished the puzzle. Puzzles and cryptography, using its own beauty and sense of mystery ,attracted hundreds of thousands of fans all around the world.

       Learning how to solve these kinds of problems is not a specialization nowadays due to the advancement of the Internet and the high level of education. Higher level of education leads to more ways of creative thinking to solve the problems. For amateurs, they don’t necessarily need to learn the special methods in order to solve the basic problems. Their level of education provides them with enough knowledge to use. Such as the most used letter in the english alphabet is e or some of the most frequent conjunctions like at, or, in and so on. Even amateurs can have fun by themselves solving cryptograms, which is significantly different from the old times when people generally don’t know a lot about languages and mathematics. Getting more amateurs working on their own is a great sign, for more and more people are getting involved into cryptography and are willing to dig further.

         Despite the fact that amateurs can have great fun working on their own, Singh was never wrong about the complexity of cryptanalysis that people need to be trained to be sufficient in breaking codes. The methods of transition and substitution or even more complicated methods still needs several disciplines, including mathematics, statistics, and linguistics for perfection.

        In general, it is a great phenomenon to have so many people interested in cryptanalysis and willing to work on their own to solve it. But they still need more practice and more training to go deeper into this area.

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