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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! จ้าง Cryptographers

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    Build a crypto currency exchange 6 วัน left
    ยืนยันแล้ว

    We are looking for some developers who have experience with dynamics of a crypto currency exchange and can build and maintain an exchange for us. __________________________________________________________________________________________________ [เข้าสู่ระบบเพื่อดู URL] [เข้าสู่ระบบเพื่อดู URL]

    $7388 (Avg Bid)
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    20 การประมูล

    We have a new coin which have 25% syncing sporks problem and staking does not activate after block 300 we believe it might be due to Zero coin not correctly done I am looking for a freelancer to get it done

    $400 (Avg Bid)
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    2 การประมูล
    Blockchain developer to join our poject 6 วัน left
    ยืนยันแล้ว

    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...

    $3332 (Avg Bid)
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    16 การประมูล
    build own ECR20 Token 5 วัน left
    ยืนยันแล้ว

    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!

    $2902 (Avg Bid)
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    19 การประมูล
    Bitcoin seed recover tool optimize 5 วัน left
    ยืนยันแล้ว

    I am looking for someone who will optimize an existing python script for me. It is an additional script of the program btcrecover ([เข้าสู่ระบบเพื่อดู URL]) named [เข้าสู่ระบบเพื่อดู URL] ([เข้าสู่ระบบเพื่อดู 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 with experien...

    $181 (Avg Bid)
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    10 การประมูล

    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)
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    7 การประมูล

    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...

    $3007 (Avg Bid)
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    16 การประมูล
    Build C++ program that can encrypt and decrypt for Playfair Cipher 4 วัน left
    ยืนยันแล้ว

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

    $116 (Avg Bid)
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    15 การประมูล

    I wanna develop a new coin on a new blockchain

    $1895 (Avg Bid)
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    17 การประมูล

    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.

    $285 (Avg Bid)
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    3 การประมูล
    Hash algorithm identification 2 วัน left
    ยืนยันแล้ว

    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)
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    17 การประมูล
    Multi-GPU integration into Onion Address Generator 2 วัน left
    ยืนยันแล้ว

    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)
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    2 การประมูล
    $124 \u0e01\u0e32\u0e23\u0e1b\u0e23\u0e30\u0e21\u0e39\u0e25\u0e40\u0e09\u0e25\u0e35\u0e48\u0e22
    16 การประมูล

    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: [เข้าสู่ระบบเพื่อดู URL] For Ethereum : - Private Key with Sequental Decrementing Mode (brute force, usi...

    $143 (Avg Bid)
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    3 การประมูล
    cryptography architect 20 ชม. 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)
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    23 การประมูล