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Encryption Algorithm

I need to create a encryption algorithm for a project I am working on, below are the requirements:

Cannot use any commercially avaliable standard encryption algorithm. This algorithm doesn't need to be anymore secure than commercially avaliable ones. So DES, AES, RSA etc CANNOT be used.

Must generate a key (or key pair) values from a password, this password will be between 10 and 40 characters long. This key must be used to encrypt and decrypt files.

Software should be invoked from a command line with the following options:

-e Encrypt File

-d Decrypt File

The encryption itself must a product cipher using substitution and permutation, the types used are at your discretion to create an algorithm that is secure.

ANY language can be used as long as the final program can be used from an executable file.

code must be fully commented to ensure it can be understood by others. I also require a user guide on how to use the program, a document justifying the methods used and why and a code design diagram.

Feel free to contact me if you have any questions.

Habilidades: Programação C, Programação C#, Programação C++ , Java, Python

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Acerca do Empregador:
( 1 comentário ) Crewe, United Kingdom

ID do Projeto: #6818780

26 freelancers estão ofertando em média £165 para este trabalho

dobreiiita

Hello I am Java and C++ expert and interested in this project. I have reviewed your requirements and confident to handle this project. Please communicate to discuss further. Regards Anshu

£125 GBP in 3 dias
(378 Comentários)
7.3
eperfections

10+ years experience. 600+ projects completed successfully. I am very interested in the assignment. Ready to start ASAP.

£52 GBP in 3 dias
(377 Comentários)
7.1
JeffLee21

Dear Sir, I'm quite interested by your project. I am programmer with sincere and capable. I have developed many project. You can found good my projects in my work history. I think that I can provide to y Mais

£157 GBP in 3 dias
(32 Comentários)
6.4
Yknox

Hi! I am interested in your project. I have much experience in developing C, C++ projects.. If you wish to hire me ,please send me a message. Thank you.

£210 GBP in 3 dias
(52 Comentários)
5.7
jap2013

A proposal has not yet been provided

£247 GBP in 5 dias
(10 Comentários)
5.2
pirlitu

Hi, would you be interested in using Blowfish and/or XTEA? (i have an idea about multiple rounds of encryption). I will be using C#.

£110 GBP em 1 dia
(17 Comentários)
4.6
durorey

Hi sir, I will use RC4 algorithm , I look forward to work for you and I will do my best . Thank you .

£55 GBP em 1 dia
(9 Comentários)
4.4
aazc5aazc

I'm a Java expert and familiar with encryption/decryption. I'm a Java expert and familiar with encryption/decryption.

£100 GBP in 3 dias
(28 Comentários)
4.3
jbss812wei

Hello dear sir I am an expert of computer security. Before I done job like this. I have interest for your job. I can help you perfectly. If you want me, please keep message in here. Sincerely, Jiang

£222 GBP in 3 dias
(8 Comentários)
4.3
vikashtech1st

Hi there, I would like to work on your project. For my delivered work and commitment , you can have a view of my portfolio. I can provide you the complete custom algorithm for encryption and decryption . I wou Mais

£100 GBP in 3 dias
(11 Comentários)
3.9
ciphe

I have MS in Information Security with research interest of Cryptography. I have implemented Cryptography algorithms in Java and C, written security solutions in J2EE and Java, have implemented datastructures in Ja Mais

£526 GBP in 20 dias
(5 Comentários)
3.7
phoenix12932

Hey! I have a java implementation of the Rabbit Algorithm i recently did for someone. Would you be interested? Just buy it from me for 100 pounds

£100 GBP in 3 dias
(6 Comentários)
3.6
MSDev2012

Dear sir , I have created several systems before , I am ready to complete your application and i have strong knowledge with web development since 2007 using .net , sql and MVC ready to start working now thanks and rega Mais

£150 GBP in 3 dias
(17 Comentários)
3.6
voneiden

Hi, I'm interested working on this project, didn't you post it already earlier? I can provide you a Python 3 (or Python 2) CLI program that does encryption and decryption of binary files with a custom product cipher Mais

£98 GBP in 3 dias
(5 Comentários)
3.0
TAHKuCT

Предложение еще не подано

£138 GBP in 2 dias
(2 Comentários)
2.6
bompolaris

hi,sir. i'm impressed when saw your post. i have spare times. i can help you good well. please, contact with me. i 'm programming expert. my skill is web scraping,data mining,c,c++,website development,reversing,m Mais

£55 GBP em 1 dia
(7 Comentários)
2.5
skind

***** FULL MONEY BACK GUARANTEE ***** Coming from 12 years web development experience, a Master in software engineering and strong communication skills I believe I can be the right fit for this job. Clients I'v Mais

£142 GBP in 3 dias
(1 Comentário)
1.7
sandeeepbadam561

Dear Employer, I have very good skills in writing Encryption algorithms. Please see my project history. Recently, I handled a related project. Please hire me for this one. You can chat with me to discuss further Mais

£250 GBP in 7 dias
(4 Comentários)
1.6
cugamelover

I have a PhD degree in computational physics and a strong background in number theory and cryptology. I've done similar computational projects before. It would be my pleasure to work on your project. I could write such Mais

£50 GBP in 3 dias
(1 Comentário)
0.7
uniquecode6

Hi, I can do it in C# winform. I am ready to work with you,Please contact me. I am not a new freelancer, Please see my another profile: [url removed, login to view] [url removed, login to view] Mais

£150 GBP in 10 dias
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