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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    345 jobs found, pricing in USD

    hi i want cryptocurrency exchange token based. i f you have already made and if you have some ready material then only bid and show me example on chat obj

    $354 (Avg Bid)
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    5 bids

    I need someone to create an Ethereum Smart contract to withdraw Ethereum from one address, to 2000 different addresses. For example... If my main address has 20 Ethereum, I will need to send 0.01 ETH to 2000 different addresses. Also, you will need to explain in detail how to use this smart contract and get it to work to fulfill my need.

    $10 - $30
    $10 - $30
    0 bids

    Description: Four nodes (mobile) in a network where one node will be considered as a central node responsible for generating and distributing the secret key shares to the other nodes using Shamir secret sharing technique. Implementation of physical layer key exchange technique to create a separate pair of secret key between the central node and each mobile node. This key will serve as a pre-shared...

    $244 (Avg Bid)
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    4 bids

    We build a crypto wallet and we want to add charting to cryptos. We are looking for someone that is quick and knows what they are doing without much hand holding. Can work on their own.

    $250 (Avg Bid)
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    1 bids

    I'm looking for someone who can send me 0.01 bitcoins wich means about $80 I'm ready to pay (160$ in advance) here, but i need the coins in next hours

    $160 (Avg Bid)
    Guaranteed Sealed
    $160 Avg Bid
    1 entries

    We need to build desktop wallet (Mac OSX, Linux, and Windows) for our cryptocurrency from Github Repo. The wallet must have our splash screen at the beginning and also coin image in the taskbar. The wallet should be error free (no run-time errors for any of the OS mentioned above)

    $246 (Avg Bid)
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    9 bids
    VisualCaptcha 6 days left
    VERIFIED

    Implement an api .net that generates the response of a visualCapctha. List all text-label solution for the VisualCaptcha Download all the image database used by VisualCaptcha Calculate checksum of each PNG downloaded Making an map with text-label corresponding to the right image's checksum Automatized with a Python script a call to "/start/1" ("1" to force a minimum numbe...

    $499 (Avg Bid)
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    7 bids

    Looking for a talented developer with extensive experience in developing a Crypto Currency from the ground up. I want someone who can fork and execute measures to prevent hacking or other potential threats. I want this Coin to stand out from the crowd and be able to improve on some of the complaints of Bitcoin. I would like to be able to utilize blockchain or something similar to make the whole pr...

    $15 / hr (Avg Bid)
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    29 bids
    Cryptocurrency 5 days left

    We are searching a programmer/developer for a new criptocurrency, ICO creation from the beggining, the new currency: 25% will be used in mining/masternodes divided as follows: 5% mining 20% more *this % can change The developer will help us to choose the best algorithm to use and justifying its advice telling us theme as: security Fast transaction factibility total of coins possible fork diffic...

    $5586 (Avg Bid)
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    37 bids

    I want someone who can fork Ripple. develop wallet Web wallet mobile wallet iOS, Android

    $2545 (Avg Bid)
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    11 bids

    A cryptography project written in C. I need to convert it into Java.

    $129 (Avg Bid)
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    18 bids

    I want a website with latest graphics which also have a member login, admin login, and super admin login. I want a cryptocurrency payment gateway and automatic withdrawal system to customers account.

    $475 (Avg Bid)
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    11 bids

    Hi there, We are looking for someone capable of making a complete video course related to crypto trading (10+ hours). Skills needed: - Previous experience creating videos (record screen) - Previous experience with power point or similars - Previous experience teaching - Previous experience trading (stocks, forex and / or cryptos) - Knowledge about cryptocurrencies - Knowledge about technic...

    $3613 (Avg Bid)
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    12 bids
    web/desktop APP developer 4 days left
    VERIFIED

    I need a web/desktop app developer with past experience. please bid only only if you have.

    $151 (Avg Bid)
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    20 bids

    Only the developers who already executed similar work successfully can contact me and work on this project. Must be finished within 1 day.

    $1357 (Avg Bid)
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    7 bids

    I need a new website. I need you to design and build my online store. Cloud mining website with all panels...

    $1917 (Avg Bid)
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    18 bids

    Purpose: The purpose of Goldrium is to introduce a fastest PCI compliant coin which incorporates Ripple and Etherum main functionalities. Process payments, settle bank transaction, and people can create ICO on your platform. The coin should be self-reliant with its own algorithm and ecosystem. These are initial features but we will be constantly adding new features to compete with all coins includ...

    $2588 (Avg Bid)
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    26 bids
    blockchain app in python 2 days left
    VERIFIED

    implmenting a tutorial on internet to build a cryptocurrency from scratch using python. Instructions are in a couple of blogposts .

    $375 (Avg Bid)
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    10 bids

    I want a simple website with latest graphics with public site page, member login, admin login, superadmin login, this site should also accept cryptocurrency payments.

    $355 (Avg Bid)
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    10 bids

    This platform will allow property agents to co-broke and communicate with each other through the website and mobile app

    $2344 (Avg Bid)
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    81 bids

    The protocol is implemented using ECC based PKI scheme. I have to evaluate the scheme in terms of complexity (operations in each phase) and security (how it will resist certain attacks)

    $358 (Avg Bid)
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    9 bids

    Hi I need very high skilled PHP dev, i have project and i would like to hire someone to do it. Only experts please. Main things you must be aware of : 1- PHP (Core). 2- Integrates encryption such as RSA pgp. 3- integrate obfuscation. 4- Yubikey Integration. 5- Dealing with OpenVPN in PHP. 6- expert in linux. 7- YOU MUST CODE IN SECURE( no sql injection or xss or csrf or xpath issues ). And othe...

    $557 (Avg Bid)
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    I require a cryptocurrency created, based on the latest codebase for Bitcoin. This must be fully tested and working before being released. The blockchain keys are to be handed over to me including the Github account from which it is setup. This is to include; - Fully working Atomic Swap and Lightning Network - Masternodes, PoW and PoS - Block explorer - Zerocoin Protocol - Testnet - Fully worki...

    $2920 (Avg Bid)
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    35 bids

    Need help installing peatio on server and also need to be taught how to add additional currencies.

    $485 (Avg Bid)
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    17 bids

    I need Ethereum payment Accept system. like as a [login to view URL] system. if you have any question please ask me. Thanks

    $1296 (Avg Bid)
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    28 bids
    Trophy icon Build HTML5 Website 2 days left

    I require an ecommerce site that works similar to a crowdfunding platform for the top 1000 twitter users - [login to view URL] Each user will have a price displayed (calculated by # of twitter followers) and 1,000,000 tokens available for purchase at this price. Payments are not charged until all 1,000,000 tokens are sold (through stripe crowdfunding configuration- [login to view URL]). Each tok...

    $944 (Avg Bid)
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    25 entries

    I need very high skilled c/c++ and assembly developer. You must have very deep knowladge in Windows API . You must Can develop all what i need from scratch , NO COPY any code from the internet. You must be able to write from scratch a socket modules as well as its encrypted. You must have very good knowladge in cryptography. You must have very good knowladge in VNC. Please read before you bid , i...

    $3800 (Avg Bid)
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    15 bids

    we need a python developer for a fintech project.

    $39 / hr (Avg Bid)
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    20 bids
    Blockchain developer Ended
    VERIFIED

    Blockchain developer for a Pre-ICO smart contract

    $353 (Avg Bid)
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    As name says i need a mobile developer for a project i need. cloning or making a new crypto currency mobile wallet, Experienced dev needed, bid and we will talk.

    $1752 (Avg Bid)
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    27 bids

    Hello!! We are looking for some technical writer who is well-versed with Cryptocurrency and who can write a 50 page whitepaper for our business. Feel free to ask your queries, in general and specific to the ICO whitepaper writing. Look forward to see lots of bid. Regards,

    $780 (Avg Bid)
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    21 bids
    Golang Web Developer Ended
    VERIFIED

    We have requirement for Golang Dev. for ongoing project , we need expert gophers with extended knowledge of cryptography and cryptocurrency Regards

    $80 / hr (Avg Bid)
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    16 bids

    Good day, We want a cryptocurrency exchange platform to start with. We want to offer a Buy/sell system P2P same as etherdelta. - Wallet System, Deposit System, Wallet Transactions, Withdrawal system and so on... The design is also ready, you need to develop a smart contract and need to connect with design. Please apply only if you have done such kind of work before and have a strong...

    $700 (Avg Bid)
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    34 bids

    We have upcoming coin offering, in couple of month, and looking for marketing expert to strategize to help us. Key Tasks 1 . Announcing our coin on forums like bitcointalk and reddit 2. Running the airdrop 3. Bounty Rewards and execution

    $37 / hr (Avg Bid)
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    2 bids

    We are looking for a developer to who can develop BIT SHARES EXCHANGE Custom Development.. lower bid will win this project..

    $1703 (Avg Bid)
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    17 bids

    Hello, I am CTO on cryptocurrency business company. I am looking for promising patrner can cooperate with me. We are gonna support all financial burdens until candidates graduate from college. Thank you.

    $52777 (Avg Bid)
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    4 bids

    I need market depth chart for digital currency USD/BTC. Similar to the one can be found in left bottom corner in this page. [login to view URL] You can use any library to get the same result, but it should work smoother. Please share the sample URL if you already have done this before.

    $191 (Avg Bid)
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    4 bids

    Hi developers, we are on hunt to find a developer to develop a blockchain based email system. it will be private blockchain so no coins or tokens involved. we need smart developers for this project. this is an EOI at the moment. further details in message. before you bid, please tell us your experience with blockchain(no cryptocurrency) and thoughts about the projects(any suggestions or questi...

    $3491 (Avg Bid)
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    27 bids

    I need an Experienced writer who can write blogs on Cryptocurrencies and BlockChain news. About coins, tokens, guide, events. Will provide you the topics. Please bid if you can start right now. Native only.

    $19 / hr (Avg Bid)
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    18 bids

    we have created a coin and we want some help with our mining pool (the pool will be for our coin only )

    $596 (Avg Bid)
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    8 bids

    We are looking to develop "Cryptocurrency P2P Decentralized Exchange Website" with tokens/coins and currencies with liquidity and safety which must be cloud-based. Looking for if somebody having a ready solution and modify that based on our need. I have multiple similar projects so looking for serious and long-term basis cryptocurrency & exchange developer. I will do 100% pa...

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    26 bids

    i have a file in format of msg.db.crypt12.

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    2 bids
    Ethical hacking Ended
    VERIFIED

    I need a teacher or someone who wants to teach me some CNO , CNA , CNE

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    6 bids

    Security evaluation of an existing cryptogrphic system

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    Run distribution partnership program for OTC Exchange Crypto /Fiat Market Co-Branding opportunity for qualified Crypto-Currency Traders Develop new features for our payment processing operations and digital cash trading desk Skill Set Know-how in dealing with institutional clients based in Eastern Europe & Southeast Asia Professional skills in Anti-Money-Laundering compliance of cross...

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    7 bids

    I need to Modify an Erlang program Must have expertise knowledge of Erlang

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    Нужно настроить рабочее место для госуслуг под юридическое лицо и заказать услугу.

    $25 (Avg Bid)
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    1 bids

    Urgently need an ERC 20 ICO token created for ICO. Must be able to do in 1 day.. only BID if you have created ICO tokens, with bonus etc...

    $16 / hr (Avg Bid)
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    20 bids

    I need a Crypto expert for my current projects. If you have knowledge please bid. Details will be shared in message with the freelancers.

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    13 bids

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