Thursday, August 26, 2010

Adventures in Math 54

Instead of teaching us calculus, our math professor taught us something new out of the box. Last August 25, Sir Jamosin taught us how to decipher codes using different ciphers. After discussing the algorithm of the system, he gave us a challenge to decode something and promised to give us extra plus points in the exam if we will decode it and do the task stated. Scribbled in the piece of paper is the following:

MZFWR EVWFN QLMBG SFJEN CLMJF RSYJB RONMY VAXFH TSSEY MLJPH XLMFG VMJNR EFNOT SXNUF GJJFQ AWMPY HLMFF ILWVG LKYPO IKJMS INNER RLYIN XSQMZ IFFSR GJJBG IVIRH EDNIN ZWFEE ISRUU ELTOR HSDPA XZJSR HZNMY WGKHR SJLJN XZJTB RKTGS SJRFE WDFWR WSSEG LWXPA WGKGB VEJSF PSAFB AFJSF AAQMO ISGMR XGXJG HGBOG SYJUU IFJUN XSGMR SXGSB XZJSU SGIIN ZWFEE ISRUU ELTOR HSDFI IFYIR WLFUR SXRJF WAXTV THNBQ IKJSG WLFUR WOJMG IJNOT AAYIG LWMFN XGKHV ZWRFN ZAIFB SXDPH VYWPH TKMPH XASHV PGAFZ ELMGV JLDGB YJFUG LWXVA OWSHN VVJOV RBZTG MUJBA HGUQE IKXJB RONMY FWYSN RKKPE QWIJA XGFOB EKNTB IXWFR HGRBA HBZTG MUJJU ENJBQ VWFNG LSYNL JGZSP LAQEE IFBJY PGSFQ EQQJI IASBA ELNPA AZISR XZJZJ MDQOB XTJKH HYJEO CLMFP SDTSB JLMFV VKPJA FMYCL XZJDB RLJOG SXYIR MJHIN VSHUR VAMBI ISISR EEYPQ EQVRD

Using the Virgenere cipher, which I wouldn't discuss in this post, we were able to get the true message out of the random letters above which obviously is grouped by 5. You can search it in google to find out how the Virgenere Cipher works. Well, after a couple of hours, we were able to unlock the message and do the task given.
Below is the transformed message:

I have a dream that one day this nation will rise up and live out the true meaning of its creed. We hold these truths to be self-evident that all men are created equal. I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slave owners will be able to sit down together at a table of brotherhood. Have a dream that one day even the state of Mississippi, a desert state sweltering with the heat of  [give me a video of your group shouting "I love math 54" at the sunken garden]  injustice and oppression will be transformed in oasis of freedom and justice . I have a dream that my four children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character. I have dreamt today. [qqq]

Analyzing and deciphering codes and ciphers is quite interesting. :)

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