Cryptography

Closed

Description

Break the encrypted file you have been given. with a a clearly argued explanation of how you go about breaking the code as well as for correct identification of the key and recovery of the plaintext.

The task will require bit-level programming, a basic appreciation of encryption concepts..The key is 8 bits long.I will upload a java and C program for it.

I need a report containing a clear explanation of how you broke the code and the value of your broken key. Append printouts of any utility program you wrote to help you do this.

Skills: Computer Security, Cryptography, Report Writing

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Project ID: #5134755

Awarded to:

nilanjande

Hi, This is a very easy assignment as the key space is very small. Also, we can use frequency analysis to crack this encryption. I can do this for you quickly once you send me the encrypted file. Regards, Nilanj More

£18 GBP in 3 days
(2 Reviews)
2.0

8 freelancers are bidding on average £47 for this job

KatieHammond

Being an experience academic writer and well researcher. I am 100% confident I can do this project perfectly. I have already written PhD and Master's Level Paper for UK and US Students and I can easily work on it. Plea More

£103 GBP in 3 days
(24 Reviews)
5.0
VirtualBrainInc

Please reply so that we can discuss on your project. I work alone from my small office at home. I believe writing is not only about paying my bills but my ability to ensure that clients are getting high quality conten More

£100 GBP in 3 days
(6 Reviews)
3.3
itachi23

Hi where is the encrypted file ..................................................................................................................................................................................... More

£47 GBP in 3 days
(3 Reviews)
2.4
callmekart

Hi, I can help you. The only way of encryption is using frequency analysis. So we decode the file with all possible combinations and do a frequency analysis of each string.

£44 GBP in 3 days
(1 Review)
1.9
crazynightwalker

Hi there. I checked this cryptography project and I can handle it. I have 10 years of programming experience. Thank you very much.

£45 GBP in 2 days
(2 Reviews)
1.6
jackmorrisonvw

Hi. I can provide a clear English explanation of why this is an extremely weak encoding, and easily broken. I don't know if you intended to include a sample encrypted file - I didn't see one posted. I can also suggest More

£23 GBP in 1 day
(0 Reviews)
0.0
kevinbritz

A proposal has not yet been provided

£50 GBP in 1 day
(0 Reviews)
0.0
deveshtewari

This can be done by writing a simple program that mounts a brute force attack on encrypted file. Since encryption key is only 8 bit long, total key combinations can be 2^8 = 256. By analyzing output files exact key, c More

£50 GBP in 3 days
(0 Reviews)
0.0