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C++ decryption library

$750-1500 USD

已完成
已发布超过 8 年前

$750-1500 USD

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We need to implement a C++ decryption library for DRM protected content. We already specified the public API of the library, based on the DRM specification. The library will: - parse a JSON license file into a model object, - handle decryption of data using provided keys and algorithms The library has to be compiled for iOS in order to test it on an IOS app. For the project delivery validation, the c++ developer will work with an iOS developer who will be in charge of the integration of its library in an IOS application Strong C++ skills are required
项目 ID: 8784841

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活跃8 年前

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Dear Customer: I work as a C++ software developer for 5 years. I worked with corporate security systems, forensics development, encrtyption/decryption . I guarantee to do my best, because I am interested in successful completion of the task=) Thank you. Sincerely, Artem Brazhnikov, Senior C++ Software Developer
$1,111 USD 在15天之内
5.0 (1条评论)
2.4
2.4
12威客以平均价$1,089 USD来参与此工作竞价
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Hello I'm interesting your project very well I'm a Good C++, Java, Crypt, Math, Algorithm expert. I m quite well experienced in these jobs. Let's go ahead with me I want to service for you continously. Thanks
$1,200 USD 在12天之内
4.9 (175条评论)
7.2
7.2
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I am very proficient in c, c++. I have 15 years c++ developing experience now, and I have worked for 5 years. My work is online game developing, and mainly focus on server side, the language is c++ under linux. I used c++ to make many great projects, for example, I made the tools which can convert java files to c++ scripts which has the same effect, of course garbage collection included. I also made our own mobile game using c++, I even can show you the demo of client. Trust me, please let expert help you.
$800 USD 在7天之内
4.8 (53条评论)
6.1
6.1
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Hello Sir... I am a computer science tutor, I teach (among others) C++ and Algorithms. I have done many projects like this, and I'm the top Cryptography developer, you can check here please: https://www.freelancer.com/freelancers/skills/Cryptography/ Please contact me for more details when possible. I look forward to work for you Sir. Best Regards.
$1,000 USD 在20天之内
5.0 (35条评论)
5.2
5.2
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A proposal has not yet been provided
$1,000 USD 在20天之内
5.0 (15条评论)
4.7
4.7
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Hello, how are you? I have over 10 years experience in C/C++. And I have also 5+ years experience in ios app development. So that I think I can delivery the best result. Don't worry about quality and deadline. I want to discuss about your job in detail. Best regards, Jin
$1,500 USD 在20天之内
5.0 (2条评论)
3.9
3.9
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I have good experience using C++, even the C++ 11 standard. I have no experience in developing for IOS, I do not even have the tools to develop for this system, but I could do the work under Linux or Windows. I do not have working experience with DRM and cryptography, but I think I could manage to acquire it. Regards Ciro
$1,250 USD 在20天之内
4.9 (4条评论)
4.2
4.2
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Hi, I have extensive experience in cryptographic implementations . I manage the encryption-decryption routines in my company, some of which are wrapped around openssl library and others are proprietary. I would like to take up this project. Regards, InkCoder
$777 USD 在20天之内
4.9 (2条评论)
1.1
1.1
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Hi, I am about 4 year about c/c++/objective-c (for specific iOS), linux socket, and current we start Qt/Qml (about 1 years), for develop app cross platform, so can I have you to solve problem?
$1,000 USD 在20天之内
0.0 (0条评论)
0.0
0.0
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Hi, We are medium size IT firm based in Pune,India and have got expertise in C++ , C, Unix programming. We have highly skilled developers having 8+ years of experience in Designing, Developing, Implementing C++, C applications. Hands on experience in multithreading and debugging complex issues in c++ code Also have experience in Porting of code from MAC to LINUX Have done tasks like removing the objective c++ code snippet and wrote c++ compatible code , to work both on MAC and LINUX. With an initial goal of increasing your revenue, we also intend to be your business partner towards the next level. If you are interested, please leave a message and we will be in touch as soon as possible. Rest assured, we are committed to delivering positive results, with integrity and value. We intend to be your business partner that understands your needs and collaborates towards your success. Thanks, Amol
$1,250 USD 在20天之内
0.0 (0条评论)
0.0
0.0
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A proposal has not yet been provided
$1,250 USD 在20天之内
0.0 (0条评论)
0.0
0.0
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I have already wriiten a cross platform (Windows, Linux, Mac) C++ licensing library. The code is tested and runs in production. The cryptographic library used is Botan. I will provide you with the functions with source code with running sample. Some of the functions: Algos: Sha256, AES-128/CBC, RSA 2048 Bit string LexRandomString(int length ); string LexEncrypter(string &plainText); bool LexFileEncrypter(STRING &filePath, string &data); string LexDecrypter(string &encryptedText); string LexFileDecrypter(STRING &filePath); string LexHexHash(string data); string LexHexEncode(string data); string LexHexDecode(string data); bool GenerateRSAKeyPair(string &privKey, string &pubKey); bool LexRSAVerifier(string &hash, string &signature, string &pubKey); string LexRSASigner(string &hash, string &privKey, string passphrase); bool LexRSAEncrypter(string &data, string &pubKey, string &encData); bool LexRSADecrypter(string &data, string &privKey, string &hexKey, string &passphrase);
$1,666 USD 在2天之内
0.0 (0条评论)
0.0
0.0

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FRANCE的国旗
Paris, France
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