Chat with us, powered by LiveChat The Substitution Cipher and How to break the Ciphe - Aqhomework

## 15 Nov The Substitution Cipher and How to break the Ciphe

The Substitution Cipher and How to break the CipherBreaking The Substitution CipherOne way to break a substitution cipher is to use frequency analysis. Lets focus on the English language for now but the process works the same way for other languages. The character e occurs 12.7% in the Eglish language and the letter t occurs 9.35% and the letter a is 8.2% of the time. So, you can count each character in the ciphered text, compute its frequency and start replacing it. After you complete the first say 4 characters, you may want to change your strategy. Can you explain why you want to stop after the first 4 characters? The two-character of is about 4.16% and to is about 2%. Now try three characters frequency.After a period of time, you will be able to decipher most of the text. I am going to ask you to do your first significant homework using frequency analysis.One possibility for the substitution cipher:ABCDEFGHIJKLMNOPQRSTUVWXYZ??????????????????????????VJZBGNFEPLITMXDWKQUCRYAHSONote that we can have 25 factorial of these possibilities (remember 2^88 28-bit key)Here is your homework A character sub was used. Can you decipher as much of this text as you can? Submit your results in the drop box below (Frequency Analysis). You may use Python to code the solution.ztrfqvdjrzqtrci wzyabi wdmwrzrdrzqt jzacif zw g jzacif rcgr cgw miit zt dwi hqf ygtx cdtvfivw qh xigfw (gt iojibbitr czwrqfx zw lzsit zt wzyqt wztlcw rci jqvi mqqk). zr mgwzjgbbx jqtwzwrw qh wdmwrzrdrztl isifx abgztrior jcgfgjrif hqf g vzhhifitr jzacifrior jcgfgjrif. zr vzhhifw hfqy rci jgiwgf jzacif zt rcgr rci jzacif gbacgmir zw tqr wzyabx rci gbacgmir wczhriv, zr zw jqyabiribx udymbiv.rci wzyabi wdmwrzrdrzqt jzacif qhhifw sifx bzrrbi jqyydtzjgrzqt wijdfzrx, gtv zr pzbb mi wcqpt rcgr zr jgt mi igwzbx mfqkit isit mx cgtv, iwaijzgbbx gw rci yiwwgliw mijqyi bqtlif (yqfi rcgt wisifgb cdtvfiv jzacifrior jcgfgjrifw).

Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.

Do you need an answer to this or any other questions?

Do you need help with this question?

Get assignment help from Aqhomework.com Paper Writing Website and forget about your problems.

Aqhomework provides custom & cheap essay writing 100% original, plagiarism free essays, assignments & dissertations.

With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.

Click Order now to access our order form, fill your paper details correctly, select your paper deadline and wait for our writers to send a perfectly written assignment.

Chat with us today! We are always waiting to answer all your questions.