Cryptography jobs

Cryptography is the study of hiding information. It intersects the disciplines of engineering, computer science and mathematics. Cryptography is involved in securing passwords, access to sensitive material and to computer systems. If your business needs help with cryptography, you can hire freelance cryptography experts to fulfill your tasks. Start by posting your cryptography task today! Hire Cryptographers


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    implementation of the AES and the Key Expansion algorithm

    $82 (Avg Bid)
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    ICO - Blockchain Developer 6 days left

    Looking for blockchain developer to help with our ICO. Must be experienced with etherium blockchain. Please provide relevant experience. Project will be discussed in more detail via chat.

    $1307 (Avg Bid)
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    The task is to develop a c/c++ console application for demo purposes (I do not care if c or c++) that implements same as the following command line: [url removed, login to view] dgst -sha256 -sign [url removed, login to view] -hex [url removed, login to view] The data that shall be signed shall be read into a buffer in the demo-application, which is then fed to the opensll implementation (source code). DLL usage is not accepted. This means to call functions for generating SHA256 digest and RSA encryption. Keys can be hard coded in the application. The output from the demo application shall be the same as when running [url removed, login to view] with the command line above. GCC, Visual Studio or C++ Builder. Shall be possble to build and run under Windows or Cygwin.

    $506 (Avg Bid)
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    The Traffic you send must be specific, Must be NEW ICO/CRYPTO projects that want to get there ICO listed. so you must have a database or have access to all NEW ico projects. will be paid in milestones.

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    Python to Java/C 4 days left

    I need you to help me transform a Python code to Java/C

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    17 bids

    BANCONOMY ist die erste Börse für Kryptowährungen weltweit, die mit Hilfe einer hybriden Technologielösung Sicherheit, Verfügbarkeit und Selbstbestimmtheit garantieren kann. Das Risiko der Geldanlage auf aktuellen Börsen ist durch die fehlenden Standards und Regularien kaum kalkulierbar und hält institutionelle Anleger bisher fern. Dezentrale Börsen, die rein auf dem Blockchain Protokoll basieren, können aus technischer Sicht aber keine ausreichende Sicherheit bieten. BANCONOMY kombiniert die Eigenschaften sowohl zentraler als auch dezentraler Architekturen, um das Beste aus beiden Welten zu nutzen. Durch ein hybrides Walletsystem und durch strenge europäische Sicherheitsbestimmungen können Investitionen erstmalig vollkommen sicher verwaltet werden, ohne auf ein hohes Maß an Transparenz zu verzichten. Für eine Teilfinanzierung strebt BANCONOMY Q1 einen ICO (Initial Coin Offering) an. Dadurch werden weitere Investitionen gesichert und der bereits vorhandene Prototyp bis zur Marktreife entwickelt. Als Grundlage des ICOs wird eine Homepage erstellt, über die sich Investoren weltweit informieren und beteiligen können. Schlichtes und seriöses Design einer Online-Bank soll sich in einer innovativen und greifbaren Struktur wiederfinden. Vertrauen und Professionalität untermauern die Vision von BANCONOMY – als erste deutsche Crypto-Bank einen weltweiten Sicherheitsstandard zu etablieren. Der ICO soll u.a. durch gezielte Pressemitteilungen und evtl. Events kommuniziert werden.

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    Project Proposal 4 days left

    I need writer for my project proposal

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    looking for an expert to help me out in the feild, sso that i can have a proper plan and strategy.......................

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    I need a plugin based solution where we can accept payments in crypto currencies or even card payments. Should support all browsers and should work efficiently with current exchange rates. should work seamlessly on any page where payments option is available. More details when we talk personally.

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    Write a conversion C++ script to convert the Ethereum Database that has 5.3M Blocks to the new BerkeleyDB structure and run on our Server. You Need to Know 1. The Structure of the Ethereum Database which is in LevelDB 2. Then study the Graphene Blockchain Database which is in BerkeleyDB. The Blockchain Database that you are converting to is open source at: [url removed, login to view] Experience in Cryptography and Blockchain Technology is required. Need C++ Database Conversion Script Done with one week which will include re-hashing in the following order. 1. Create a Conversion Diagram in Excel Spreadsheet with Notes first before writing the Script. 2. Then you need to write the C++ Script Logic Flow Chart for approval using a flow Chart Tool like SmartDraw etc. 3. Then you write the C++ Code 4. Then we run the Code on Ubuntu Server and populate BerkeleyDB There will be 4 Milestone payments made.20% 20% 30% 30%

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    Need to write a small program involving a Cryptography algorithm in either C, C++, java or Python.

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    i need someone the has good experience with hmac and sha openssl pesedeu random , able to en|cry|pt and de|cry|pt ha|sh in php mode, i will ask you more detail.

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    DATA Entry _ Cryptography 2 days left

    someone who is expert in data entry and can enter some data related to cryptography please note that you must be expert in cryptography and information security concept and know how to enter data tahnks

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    SPSS Expert _ Cryptography 2 days left

    someone who is expert in spss and can do one urgent job for me Please note that you must be expert in spss and have strong experience in this field you must have strong concept of cryptoraphy too thanks

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    Looking for an Expert who have strong knowledge about" => cryptography => Information security Please note that you must have strong experience.. If you don't have strong experience then don't apply. the main purpose of this job is Web Security. so, i am looking for an highly experienced and qualified person. Thanks

    $9 / hr (Avg Bid)
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    Looking for an Expert who have strong knowledge about" => cryptography => Information security Please note that you must have strong experience.. If you don't have strong experience then don't apply. the main purpose of this job is Web Security. so, i am looking for an highly experienced and qualified person. Thanks

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    Ethereum business idea needed 2 days left

    Hi! Have you been working on Ethereum and or blockchain related projects? I would love to here what we can do together and how we can build a startup. I will be able to fund the project and bring my executive business development experience to the table. Kind Regards, Ndroi

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    I work on a team of developers and we are currently developing a project which requires VERY strong knowledge on python, HMAC, and cryptography. We currently have most of the program complete and planned out but what we need is for someone to successfully generate or scrape for the required HMAC token. The token will be attached to the said session of the multi-threaded program which will be used to verify that specific task. Please do not accept this project if you do not meet ALL of these requirements.

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    I have a simple algorithm which you guys have to implement. It has to search for collisions in a toy example of cryptographic hash function with n-bit output, where “n” are the first “n” bits of the SHA-1 message digest. If anyone is interested I'll get into the details.

    $19 / hr (Avg Bid)
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