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! Πρόσλαβε Cryptographers


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    33 δουλειές που βρέθηκαν, με τιμές EUR
    forex trader 6 μέρες left

    Am looking for individuals who are interested in learning how to become their own forex trader, I will be here to teach them and guide them through all the processes, am gonna them all they need to know practically and step by step process

    €2036 - €3393
    €2036 - €3393
    0 προσφορές
    Storing data in blockchain anonymus (IOT - sensor data) 6 μέρες left

    Storing data in blockchain anonymus. Developments using blockchain to secure IoT/industrial Internet applications. Blockchain technology is used to securely store a payload, like sensor data from a vast number of sensor nodes.

    €499 (Avg Bid)
    €499 Μέση Προσφορά
    10 προσφορές
    Bitcoin exchange app 6 μέρες left

    Want a simple platform where people can exchange bitcoin and altcoins. No need for fiat.

    €595 (Avg Bid)
    €595 Μέση Προσφορά
    14 προσφορές
    Trophy icon Finding crypto big investors for my crypto 29 μέρες left

    I am looking to add great volume to my new crypto currency. How do I best do that?

    €8 (Avg Bid)
    Teach me how to launch a token on BSC -- 2 6 μέρες left

    I'm looking to pay someone purely for advice. I want to know how to launch a token, what steps exactly to take, which contracts are best, what the best ways to market my token are, how to create the liquidity pool, (I can do all the marketing and have an awesome use case). No time wasters or scammers. Proof of previous project will be required.

    €21 / hr (Avg Bid)
    €21 / hr Μέση Προσφορά
    8 προσφορές
    Bep20 Migration 6 μέρες left

    Im looking for someone who can help me with this. We launched a beo20 token with no tax line added. Is there anyway that you can change the code or migrate the token to another bep20?

    €19 / hr (Avg Bid)
    €19 / hr Μέση Προσφορά
    6 προσφορές
    crypto ads on google 6 μέρες left

    i want to crypto wallet ads on google i have good budget. only expert people bid

    €1314 (Avg Bid)
    €1314 Μέση Προσφορά
    17 προσφορές
    Chainlink Oracle 5 μέρες left

    Need help in setting up Chainlink oracle

    €422 (Avg Bid)
    €422 Μέση Προσφορά
    2 προσφορές

    Helo we need developer who already build the ethercrsh we need that. We have to do on smart contract.

    €4222 (Avg Bid)
    €4222 Μέση Προσφορά
    1 προσφορές

    Ex: [κάνε είσοδο για να δεις το URL] 1. airdrop rewards 2. pre-sell 3. referrals system 4. all automatic Only for experienced creators!

    €100 (Avg Bid)
    12 συμμετοχές
    Crypto Coin Fork and Wallet Clones 5 μέρες left

    I am looking for a developer to fork a coin with staking, I will discuss specifics in private. I will give broad explanations here for the public. Dev will be responsible for full integration of the coin into the wallet, we will provide the open source links to the software to the developer. The existing coin is on a functioning network, we would use the information they provide in updates in th...

    €619 - €1237
    Προεξέχον Σφραγισμένο
    €619 - €1237
    11 προσφορές

    i need a cryptography expert asap

    €481 (Avg Bid)
    €481 Μέση Προσφορά
    3 προσφορές
    custom crypto wallet website or app download 5 μέρες left

    i have coin and i am wanting my core qt wallet to be able to download as app or for accounts to exist on website or online platform so that users can exchange from wallet account addresses

    €1044 (Avg Bid)
    €1044 Μέση Προσφορά
    7 προσφορές

    looking for developer/s how able to create similar website to [κάνε είσοδο για να δεις το URL] server side and front end if you have experience with dApp, smart contract and one of - ES6/React/Vue front end libraries we are waiting for you

    €1053 (Avg Bid)
    €1053 Μέση Προσφορά
    27 προσφορές
    COIN DEVELOPMENT 4 μέρες left

    Hi, I'm Martins by name. I want to develop a coin like bitcoin, it should be named megacoin. Its rate must be $60,000 per one megacoin. I only need professionals that can answer thousands of questions because I have to be sure if you are capable and also if that's the right choice for me. Wish you all the best. Thanks. Martins.

    €3712 (Avg Bid)
    €3712 Μέση Προσφορά
    2 προσφορές
    Cryptography Theory -- 2 4 μέρες left

    Need help with: Cryptography Theory IND-CPA IND-CCA Cryptographic Primitives Encryption Hash and MAC security AES-CBC Standardized Scheme

    €78 (Avg Bid)
    €78 Μέση Προσφορά
    4 προσφορές

    Need team for crypto project for marketing Must have prev experience. I will ask for it!

    €881 (Avg Bid)
    €881 Μέση Προσφορά
    8 προσφορές
    Add multithreading to the miner functionality of this project 5 μέρες left

    Project Source: [κάνε είσοδο για να δεις το URL] Bounty: [κάνε είσοδο για να δεις το URL] I am looking for an experienced developer to add multithreading to the m...

    €517 (Avg Bid)
    €517 Μέση Προσφορά
    13 προσφορές

    I want a plugin/ widget which convert my ecommerce product price to real time crypto price . I want to display the price of the product in crypto just bellow where the inr price is showing . basically i want to display multiple currency under every product . And the prices should be real-time and the valued should be calculated on my product price.

    €97 (Avg Bid)
    €97 Μέση Προσφορά
    5 προσφορές

    Need somebody who can setup dodge coin mining in centos7

    €16 (Avg Bid)
    €16 Μέση Προσφορά
    3 προσφορές
    Crypto token creation 2 μέρες left

    We are looking for a person/team to create a token for our business so that we can distribute to partners/associates who can then redeem them after certain time periods (redeem them back with us, at which point we will burn them). This is at trial stage and may lead to an ongoing project.

    €19 / hr (Avg Bid)
    €19 / hr Μέση Προσφορά
    22 προσφορές
    Uniswap/pancakeswap front run bot. -- 2 1 μέρα left

    Edit Description I need an automated bot to front run another wallet transactions. Bot should work by scanning the mempool for a specified address and when it sees that this target buys a token for a large amount of liquidity than the bot should make 2 transactions in his same block, one for buying that token and one for selling it. I don't really know how it works to get into a specified ...

    €1399 (Avg Bid)
    €1399 Μέση Προσφορά
    23 προσφορές

    I need a blockchain expert preferably with binance smart chain experience. I require a automated script that will buy set amount of BNB once the presale contract address allows purchases, this must be done on block to ensure faster purchase time. Example of the presale I want to buy: [κάνε είσοδο για να δ&epsilo...

    €160 (Avg Bid)
    €160 Μέση Προσφορά
    4 προσφορές
    Create custom encryption for golang net.Conn 1 μέρα left

    Implementation of a custom encryption and decryption for golang [κάνε είσοδο για να δεις το URL], similar to TLS. REQUIREMENTS: good coding style, high-quality code implementation.

    €178 (Avg Bid)
    €178 Μέση Προσφορά
    3 προσφορές


    €2966 (Avg Bid)
    €2966 Μέση Προσφορά
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    Development of a Mobile Multiplayer FPS gaming App in Unity 3D. Similar to PUBG graphics but with different gaming model. iOS, Android, WebGl. Multiplayer backend development needed with Matchmaking Services and Server Allocation Manager. Hosting in Cloud with Google Cloud, Amazon AWS, Azure etc with easy scalability. Need to integrate Crypto Currency Wallet into the menu and custom gaming logic....

    €12295 (Avg Bid)
    €12295 Μέση Προσφορά
    20 προσφορές
    Symmetric Key Distribution Model Using RSA-CRT Method 1 μέρα left

    The problems that arise with the implementation information transmission of images are the large data size and the importance of information security. Both symmetric and asymmetric cryptography can be used to meet the security requirements of the messages being sent. A symmetric cryptosystem is faster, however, the distribution of the secret key to the recipient is vulnerable to security risks. Wh...

    €39 (Avg Bid)
    €39 Μέση Προσφορά
    1 προσφορές

    Helo we need developer who already build the ethercrsh we need that.

    €255 (Avg Bid)
    €255 Μέση Προσφορά
    4 προσφορές

    I am looking for someone who has knowledge on Cryptography API's and bitcoin algorithms whom can build me the application in C# dot net framework and also build the packages and reference libraries 50% of project is done . Looking Forward to Complete it in On Time by setting up the nodes or pool to start mining crypto's Note : Once Hired , Then Project Details will be Shared , Before ...

    €282 (Avg Bid)
    €282 Μέση Προσφορά
    1 προσφορές
    Build an Escrow platform on Ethereum or Binance Smart Chain 6 ώρες left

    Check file attached for detailed information. I want someone who is experienced on smart contracts related to cryptocurrency

    €16 / hr (Avg Bid)
    €16 / hr Μέση Προσφορά
    13 προσφορές
    Crypto project -- 3 2 ώρες left

    I need a crypto Tokenpre - sell website / selfdrop website Example : 1) [κάνε είσοδο για να δεις το URL] 2) [κάνε είσοδο για να δεις το URL] Airdrop reward pre-se...

    €464 (Avg Bid)
    €464 Μέση Προσφορά
    4 προσφορές
    crypto project -- 2 2 ώρες left

    I need a new website. I need you to design and build a website for my small business.

    €348 (Avg Bid)
    €348 Μέση Προσφορά
    5 προσφορές
    Crypto expert 7 μέρες left

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

    €5 - €10 / hr
    €5 - €10 / hr
    16 προσφορές