Build C++ program that can encrypt and decrypt for Playfair Cipher

$30-250 SGD

V teku

Objavljeno

pred več kot 5 leti

$30-250 SGD

Plačilo ob dostavi

Requirement: (MUST KNOW PLAYFAIR CIPHER) 1. Name of program: [login to view URL] 2. Use command syntax: playfair -e key <[login to view URL]> <[login to view URL]> playfair -d key <[login to view URL]> <[login to view URL]> where -e option is encryption and -d option is decryption 3. Program must cope with special inputs (e.g. replacing 'i' with 'j') during encryption and decryption 4. Program must be able to remove additional characters during decryption when a user inserts those additional characters. 5. Generate random keyfile [login to view URL] 6. Generate ciphertext file [login to view URL] obtained by encryption [login to view URL] under the key in [login to view URL] 7. Decrypt Ctext-3 (assuming you do not know the key) and put the explanation in Microsoft word. To test it out, test it with playfair -d [login to view URL] [login to view URL] [login to view URL] where the [login to view URL] is empty and program should do automatic decryption. Verify that [login to view URL] file is identical with [login to view URL] by executing diff [login to view URL] [login to view URL] in Unix/Linux 8. Put the statistical properties of [login to view URL] and put it in the same Microsoft word. 9. All input is lower case without punctuation 10. Playfair Cipher: 5x5 key matrix (J is omitted) -- key

C++ Programming

Cryptography

Security Sales

ID projekta: 17402896

Več o projektu

9 ponudb

Projekt na daljavo

Aktivno pred 6 leti

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9 freelancerjev je oddalo ponudbo s povprečno vrednostjo $166 SGD za to delo

@hbxfnzwpf

I am very proficient in c and c++. I have 16 years c++ developing experience now, and have worked for more than 7 years. My work is online game developing, and mainly focus on server side, using c++ under Linux environment. I made many great projects using c++, for example, I made the tools which could convert java codes into c++ scripts, of course garbage collection included, this was very similar to a compiler, and was very complex. I also made our own mobile game using c++, I can show you the demo of client, if you like. I am very proficient in java also. I have a very good review on Freelancer.com, I never miss a project once I accept the job, you can check my review. Trust me, please let expert help you.

$200 SGD v 1 dnevu

4,9

(137 ocen)

6,9

@roshanasim

I hold a degree in Computer Engineering. I minored in Programming with a focus in c,c++, assembly. Whether independent or operating on a team my analytical approach to problem solving has been a plus. i have experience of 5 years in assembly language, assembler, c programming, c++ programming, c# programming Kindly reply me soon so we can discuss more about this. Thanky you

$161 SGD v 3 dneh

4,9

(23 ocen)

4,8

@renegator

I think, i can perform this job. I have experience work with cryptography for practice and education

$100 SGD v 10 dneh

4,9

(10 ocen)

3,5

@seamantopcoder

CIPHER expert here! Only 2 hours need! Hi, i have so many experiences with CIPHER and i am very interested in your project. Please let me do your works and thanks.

$249 SGD v 3 dneh

0,0

(0 ocen)

0,0

@qensoku

HIGHLY interested with your project. I'm ready to start right now. I'm an individual developer and my completion rate is always 100%. I STRICTLY BITE only WHICH I CAN CHEW. Knock me please

$150 SGD v 3 dneh