ECC or RSA Cryptography Encoder/Decoder in C

$250-750 AUD

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거의 2년 전

$250-750 AUD

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Hi. I need a cryptography programmer who can code for me a highly sophisticated elliptic curve cryptography key generator (preferably using OpenSSL) which I can hash with SHA-256. If ECC is too complex, RSA may also be substituted as a replacement as I believe both of these methods use a public and private key. I already have the working SHA-256 hash code but I need someone to help me with the ECC or RSA code. The idea would be that we would hash the data and then sign the hash. This will prove that whoever generated this hash has the private key. Then you get the data that you want to verify, calculate the hash on it and then check that. If the calculated hash matches the one in the signature then the signature is valid. At this point we will have have high confidence that the data has not been changed and that it was generated by someone that has the private key. Important things to note are that you must code it in pure C (not C++). Thanks.

프로젝트 ID: 33912183

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@brunoborges94

Hi,I carefully checked your requirements. I'm fullstack software engineer. I'm OOP master(C/C++,Java,C#,Python) I have experienced Blockchain,Smart contracts and Web3. I have rich experience PHP frameworks and Fullstack web programming(MERN,MEVN). I'm really interested in your project. Let's discuss more. Thanks.

$500 AUD 3일에

4.7

(10 건의 리뷰)

3.2

17 이 프로젝트에 프리랜서들의 평균 입찰은 $697 AUD입니다.

@liveexperts123

Hi there,I'm biddin on your project "ECC or RSA Cryptography Encoder/Decoder in C" I have read your project description and i'm an expert in C programming and machine learning therefore i can do this project for you perfectly.I still have a few questions. please leave a message on my chat so we can discuss the budget and deadline of the project. Thanks. .. .

$750 AUD 4일에

5.0

(57 건의 리뷰)

7.2

@apgrl123

I CAN COMPLETE YOUR PROJECT EASILY Hello, I am programmer with enough experiences on C/C++ for 10+ years. C/C++ is nice programming language and I am majoring on it for long years so I have confident to complete your project by C/C++. I can work by full time for your project and trying to satisfy the requirements. I am designing the project from scratch and structure it well. I am following the project's design process exactly, and if any error is found, fix it within 24 hours and provide maintenance free of charge for a month. Client's idea + Programmer's good coding is the perfect result, this is my idea. I want to keep long-term relationship for customer so I want to give the nice result. If you want the perfect result, please contact with me.

$500 AUD 7일에

4.9

(22 건의 리뷰)

6.4

@alimamacentre

♛♛♛ A Talented C/C++, C#/.NET Developer ♛♛♛ dear, you are welcome! i have rich experienced of C/C++, C#/.NET for over 10+ years. so that i can give you the perfect result for your requirement. C/C++, C#/.NET is my top skill and I have confident to complete your project perfectly. We can discuss about the project via chatting in detail. I will try to give you a wonderful result asap. Thank you.

$500 AUD 7일에

5.0

(3 건의 리뷰)

5.8

@gogora

Hi I could develop an ECC generator using OpenSSL. In fact I may have it for RSA. To find a common ground and speed up the development, please answer the questions below: 1) What is the target platform? Compiler? Please share all information about environment 2) What should be input? Do you want to input key or salt? Please specify output values too. 3) Do you want validation function too? I am fully available for this project by now. Bid amount and deadlines are estimated for existing information. Please discuss details over chat. Maximum response time is 12 hours, although mostly I respond in minutes. Thanks for your attention Archil

$500 AUD 7일에

5.0

(13 건의 리뷰)

5.8

@drozhkov

hi, it seems i can help you openssl ......................................................................

$750 AUD 5일에

5.0

(13 건의 리뷰)

5.2

@aravinda333

Hi, I have great experience in implementing Elliptic Curve Cryptography using OpenSSL programmatically in C, as well as other cryptographic primitives. I have mathematical knowledge into the inner workings or ECC, as well as ECDSA and I totally understood your requirement of authenticating information with public key cryptographic methods. I prefer Elliptic Curve Cryptography because they offer very strong security compared with RSA for shorter key sizes. I have used OpenSSL, libcrypto for a whole lot of symmetric encryption tasks as well. I am very much interested and willing to put any amount of hard work into successfully implementing this amazing project. Please feel free to contact me via chat so that we can discuss further and start working on this amazing project right away!!! Best Regards, Aravind A

$300 AUD 3일에

5.0

(48 건의 리뷰)

5.2

@maperdomo249

Hi.⭐⭐⭐⭐⭐ I have read your post about looking for C expert and have rich experience with Desktop Application. I am very happy to meet this job since I am familiar with C/C++. Please see my review, you can know i am a OS programming expert. So i am familiar with threading, memory managing, scheduling, improve performance etc.. and i am sure my code quality and performance. I am also familiar with math, my clients saying my logic is very great. I would like to build a good relationship with you through the completion of a successful project. Please send a message to discuss more. Thanks.

$500 AUD 7일에

5.0

(15 건의 리뷰)

5.0

@tranloanhanu

Hello, I have rich experience in C programming for En/Decoding using RSA, ECC or AES. I have read all your explanations carefully and fully understand your requirements. So I am sure I can give you correct and good results. I would appreciate it if you could contact me soon and share your project details. we can discuss about timeline and budget on there. Thank you.

$250 AUD 2일에

4.8

(22 건의 리뷰)

5.2

@dendzadev

Hi, how are you. I'm a senior C/C++ developer with high mathmatical skills. I'm familiar with cryptography including RSA, ElGamal, ECC & DH and so on. I can finish this task in time and want to chat with you in detail. Thanks Dennis

$500 AUD 7일에

5.0

(11 건의 리뷰)

4.8

@ngovanchinh8686

Hi, I have read your post carefully. As a senior C developer, I have already developed lots of projects such yours. That's why I think I can get this done in a timely manner. If you hire me , I will bring you to success. Please chat me. Best Regards

$500 AUD 7일에

5.0

(3 건의 리뷰)

2.7

@grebnovadefi

Hello. The task you posted is very interesting. I recently did a similar task. I handled openSSl amd used it to get enc/dec algorithm of any app. I can do this perfectly. I have 10 years of experience in reversing and binary analysis. please contact me

$1,000 AUD 15일에

5.0

(2 건의 리뷰)

1.8

@maksimjevdjic122

Hello, how are you? As a senior developer, I always concern with Security while development. Skill Set: - Basic skill C, C++ I have developed anti-virus, VPN, game engines and so on. Go-lang I have analyzed go-ethereum core code and worked on forking it. - Blockchain development NFT (Non Fungible Token) Marketplace Development Smart-Contracts (Solidity, Truffle framework) Token development based on Ethereum and Binance (ERC20, ERC721, ERC 1155, BEP20, BEP721, BEP1155) DLT Apps & Private Blockchain Development Cryptocurrency Wallet Development for Linux, windows, Mac, Web. - Network Security Linux server management IPsec, SSL VPN development Thanks for reading

$555.56 AUD 10일에

0.0

(0 건의 리뷰)

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@debendraece

I am having experience of 12 years in c/c++.I am working with HCL technologies currently. I am available only on weekends. Can't tell you exactly when I can deliver project without understanding scope of work. Need more information related to your project.

$500 AUD 7일에