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! Найняти Cryptographers

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    15 робіт знайдено, ціни вказані в USD
    Trophy icon Supplyer with 0.01 Bit`coins required 2 дні(-в) left

    I'm looking for someone who can send me 0.01 bitcoins wich means about $80 I'm ready to pay (130$ in advance) here, but i need the coins in next hours

    $130 (Avg Bid)
    Обраний Гарантований Прихований
    $130 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    1 робіт
    build own ECR20 Token 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need you to develop some software for me. I would like this software to be developed. Please develope our own crypto coin. Need following services: Logo Design Website to Selling Crypto Coins (3 languages) Develope full Crypto coin ECR20 based Please write "We want be your Developer" at the start of your proposal! Thanks for offering full price for all of the needed prices!

    $2914 (Avg Bid)
    $2914 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    18 заявки
    Bitcoin seed recover tool optimize 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I am looking for someone who will optimize an existing python script for me. It is an additional script of the program btcrecover ([увійдіть, щоб побачити URL]) named [увійдіть, щоб побачити URL] ([увійдіть, щоб побачити URL]). Optimized is the number of attempts from which the seed is to be restored (unlimited). And there should be an integration of the GPU (Cuda / OpenCl). Please only bidders w...

    $162 (Avg Bid)
    $162 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    7 заявки

    Hi need to set up a smart contract in block chain, person who is available on urgent basis with reasonable prices will be given preference.

    $99 (Avg Bid)
    $99 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    7 заявки

    Hey there, we are looking for a Talented crypto developer for a revolutionary cryptocurrency project. IMPORTANT: Please note the team will get paid with our company token. We are looking ONLY for more more developer to be part our team. Our team is international and it's a great opportunity to get involved in the development of something never made before! Is important to have a good knowle...

    $2699 (Avg Bid)
    $2699 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    15 заявки

    Requirement: (MUST KNOW PLAYFAIR CIPHER) 1. Name of program: [увійдіть, щоб побачити URL] 2. Use command syntax: playfair -e key <[увійдіть, щоб побачити URL]> <[увійдіть, щоб побачити URL]> playfair -d key <[увійдіть, щоб побачити URL]> <[увійдіть, щоб побачити URL]> where -e option is encryption and -d option is decryption 3. Program must cope with special inputs (e.g...

    $116 (Avg Bid)
    $116 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    16 заявки
    I wanna develop a new coin 5 дні(-в) left

    I wanna develop a new coin on a new blockchain

    $2121 (Avg Bid)
    $2121 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    14 заявки

    We have a new coin which has a 25% sporks sync issue and staking does not activate after block 300 due to this problem, we believe it might be due to zerocoin not correctly done.

    $177 (Avg Bid)
    $177 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    2 заявки
    Hash algorithm identification 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hi dears, Need your assistance! We lost contact with our ex developer and now facing the problem with serials generation... Old software generate pairs serial/ hash like this one serial: 1006438049976566 hash: 10DD2AE6AACFF75230 We can provide lots of pairs like above if needed and any additional info on your request. All the best and thanks!

    $477 (Avg Bid)
    $477 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    17 заявки
    Multi-GPU integration into Onion Address Generator 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need you to modify software called Scallion. This software uses GPUs to create vanity GPG keys and .onion addresses. ( for TOR Hidden Services). I would like to add better performance, better user interface and ease of installation ( currently different versions of windows have system files missing. would like them added into the program. Also would like the software to use multi GPUs in one ins...

    $90 (Avg Bid)
    $90 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    2 заявки
    $124 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    16 заявки

    Hello, I need a program that does Bitcoin and Ethereum hashing operations and then compares result to Bloom Filter, all done on GPU (using CPU only for output and input value incremention). NB : For a considerable time gain, this project can be tailored to my requirements: Gitub project: [увійдіть, щоб побачити URL] For Ethereum : - Private Key with Sequental Decrementing Mode (brute force,...

    $143 (Avg Bid)
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    3 заявки
    cryptography architect 1 день left

    We need architecture help on a crypto project. The right person will be knowledgeable with SHA, HMAC, RSA, and AES. The short-term project may evolve into more. Funded non-government start-up.

    $53 / hr (Avg Bid)
    $53 / hr \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    23 заявки

    I need to upgrade this fork of Litecoin: [увійдіть, щоб побачити URL] A new repository with new github account needs to be created. THIS PROJECT REQUIRES ALL WALLET VERSIONS TO BE UPGRADED to reflect the most recent changes to the Litecoin Core. In addition to upgrading ALL wallet versions to reflect the most stable version of Litecoin, I will need a blockchain explorer and a basic website comple...

    $1444 (Avg Bid)
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    28 заявки
    Python & Cryptography 10г. left
    ПІДТВЕРДЖЕНО

    Python & Cryptography. Given functions with some pieces of data. Find message

    $25 (Avg Bid)
    $25 \u0421\u0435\u0440. \u0437\u0430\u044f\u0432\u043a\u0430
    14 заявки