Cryptography Jobs

9 were found based on your criteria

  • Fixed-Price – Est. Budget: $100.00 Posted
    We're after a utility which will: - append a signature to a file, given a public/private keypair - check a file's signature, given the public key of the signer It needs to be small and not dependent on external libraries - static linking of code from libraries is fine. 'small' probably precludes OpenSSL. We're looking for a fixed price quotation for the job, to include: - how long we can expect the work to take (in elapsed time, not hours ...
  • Fixed-Price – Est. Budget: $500.00 Posted
    Hello, We are building a mobile application which is using the Crypto++ libraries (http://www.cryptopp.com) to encrypt data which we are sending over a socket stream. We are facing a number of issues with the Crypto++ library. Please let us know if you could help and how this would work. Thank you very much. Karl Nimmo
  • Hourly – 1 to 3 months – 10-30 hrs/week – Posted
    ClearGate's mission is to bring innovation and security of Bitcoin to the world. Our Development team consists of product-minded designers and engineers who are responsible for building a platform that unites consumers, businesses, and developers around the various use cases that the community discovers. We are looking for someone that can work with current Bitcoin and Block-chain environment and be able to look even more into the future with our current tech. Translate high-level conceptual product ideas into well-designed ...
  • Hourly – Less than 1 week – 10-30 hrs/week – Posted
    I need a program written in c#. The program must accept an .exe file, a .ico file (if checked), and output an encrypted version of the original file with the new icon. The user should be able to generate file info for the properties. It should provide various encryption methods. It should work well enough to hide a virus from antivirus (FUD). If a virus later becomes detected, it needs to be editable so that any new files output are ...
  • Fixed-Price – Est. Budget: $300.00 Posted
    Cracking Password Software: A device has a 4-digit password. If you forget the password you can obtain a reset-code form the device, a random code 12-character-long. ( Possible random character only has 16 variables: 0123456789;:?=<> ) Input this 12-character-code into the master-software to get the 4-digit password. ------------------ I have device which is protected by 4-digit password. If someone forget the password, they can enter the wrong password few times, after certain tries the device will a generate a 12-character code. This 12-character ...
  • Hourly – Less than 1 month – 10-30 hrs/week – Posted
    Hello, We are looking to set-up a PHP Bitcoin marketplace where users can exchange game codes and more. I have found two open source projects we could base the work off. https://github.com/Bit-Wasp/BitWasp https://github.com/brighton36/CoinPost BitWasp looks much better in my opinion but needs some work to get it operational. Please look over this thread before applying as you will need to know how all these Bitcoin features work and how to code around ...
  • Hourly – Less than 1 month – 30+ hrs/week – Posted
    Develop an activex control that can be used in scripts for perform signing, encryption, decryption and verification tasks, using digital certificates. The API of the control will be specified by us. The activex control should be usable on IE versions 8 and above on both 32 bit and 64 bit windows. The signatures and encryption output should be standards compliant and encoded correctly. The signatures and encryption should be verifiable using our server side component (which will be shared). Persons ...
  • Hourly – Less than 1 week – 10-30 hrs/week – Posted
    Seeking avid Crypto enthusiast with a passion for emergent digital currencies. (Bitcoin, DarkCoin,Vidioshare, etc) Writer must have a background in research, info graphics, and a extensive knowledge of the crypto community as a whitepaper is needed for upcoming project. Attached is a template for what we are looking for. If you feel your a fit, please contact me for further details.
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