Cryptography Jobs

78 were found based on your criteria

  • 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. 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
    We have some code built for Mac OS X that leverages the Mac Keychain for key management, signing and encoding/decoding data in the Cryptographic Message Syntax format. We are porting the code to POSIX and Win32, so the Keychain code has got to go. The job is to replace the functionality leveraging OpenSSL but keeping local storage secure. The Mac code is less than 200 lines. By the way we have a really cool little project, and more work ...
  • Fixed-Price – Est. Budget: $250.00 Posted
    We need a Java based solution to enable us to encrypt / decrypt text and/or zip files based on the PGP protocols to exchange with our clients. Keys to be used may be either DH/DSS or RSA format with key lengths up to 2048 (depends on what our clients supply to us and are able to accept) The solution will be integrated into our Java (and Groovy) based Automation system so must run without any requirement for manual intervention ...
  • Hourly – 1 to 3 months – 30+ hrs/week – Posted
    We're looking to develop a chat app. The core functionality of the app is anonymity and encryption. Minimum requirements: - 3-5 years in building iOS, Android and Web Apps - Strong understanding of iOS development guidelines - Delivery of highly scalable code and platform - Attention to detail - 10+ scalable app development experience - AWS Experience - Scrum / Agile experience, knowledge in using scrum/agile tools - Understanding of Encryption technologies and methods Huge plus if you've done something like this before.
  • Hourly – Less than 1 week – 10-30 hrs/week – Posted
    I require a C library that is a port of an existing Java library. The library provides an API that is used by a client/server system for authenticating, using EC public/private keys and ECDH to perform mutual authentication. You will use OpenSSL to provide the same compatible functionality to the Java library. You will need to provide a compilable library, including makefile and tests to prove it works with the Java library.
  • 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.