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CRYPTOGRAPHY TASK

The aim of this assignment is to perform a linear cryptanalysis of the FEAL-4 block cipher as presented in the lectures.

You can find a copy of the source code for this cipher (attached here)from which the secret key has been removed, but which also prints out the intermediate values of the cipher.

An executable version of this code which has the secret key built into it was used to generate the 200 random plaintexts/ciphertexts which can be found in the file [url removed, login to view] (attached here).

Your task is to discover as many of the bits as possible of the six 32-bit sub-keys K0-K5 used in this cipher. The more bits, the more marks you will get. However you will get some marks for even finding a few bits of the subkeys. You should submit your code along with a written report describing how you went about the cryptanalysis and the results obtained by email.

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ALL RELEVANT FILES ATTACHED

I NEED THIS IN 3 DAYS

PRICE : $ 30

Навички: Алгоритм, Програмування на С, Кріптографія, Java, Архітектура ПЗ

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Про роботодавця:
( 647 відгуки(-ів) ) New Delhi, India

ID проекту: #5146090

2 фрілансерів(-а) подали заявки на цю роботу; середня заявка - $40

andreiiusan

Hello, I can do this in about 2 days, but I need to see the lectures, I need to know how to present the results, what files do you need? Code? Final result? Explanation of the method used? I'm waiting for this informat Більше

$30 USD за 3 дні(-в)
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theinventor2013

im waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiting youim waiti Більше

$50 USD за 3 дні(-в)
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