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! Rekrut Cryptographers

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    19 pekerjaan ditemukan, seharga USD
    PGP PKI to store and manage keys 6 Hari left
    TERVERIFIKASI

    I am looking for PGP PGP PKI key management expert

    $55 (Avg Bid)
    $55 Rata-rata
    1 penawaran
    Web wallet needed for Bitcoin Fork 6 Hari left
    TERVERIFIKASI

    I now have my chain running. Block explorer is live, however I would like to have a web wallet for ease of use. I am happy with free open source options, it just needs to be secure, with my logo, pointing to my new domain specifically for this wallet and forced https (SSL).

    $1619 (Avg Bid)
    $1619 Rata-rata
    10 penawaran
    Blockchain and Cryptocurrency Project 5 Hari left
    TERVERIFIKASI

    Mr. Mark has written his will. According to his will if his son Jack successfully gets his undergrad degree then he will be entitled to get his share of money from Mr. Mark's wealth. If not, then the money will go to an NGO(that helps homeless) and Jack will get nothing. For This purpose Mr. Mark, writes a smart contract and deploys it. Before deploying the smart contract Mr. Mark generate...

    $823 (Avg Bid)
    $823 Rata-rata
    9 penawaran
    Blockchain and Cryptocurrency project 5 Hari left
    TERVERIFIKASI

    Mr. Mark has written his will. According to his will if his son Jack successfully gets his undergrad degree then he will be entitled to get his share of money from Mr. Mark's wealth. If not, then the money will go to an NGO(that helps homeless) and Jack will get nothing. For This purpose Mr. Mark, writes a smart contract and deploys it. Before deploying the smart contract Mr. Mark generate...

    $70 (Avg Bid)
    $70 Rata-rata
    1 penawaran

    Hello, I have a C code which is basically a reader. It reads data from files and converts it to human readable form. I need to conver this to Python. Best offers needed. Thanks

    $34 (Avg Bid)
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    33 penawaran
    Simple JAVA program - 4 Hari left
    TERVERIFIKASI

    ENCRYPTION When a word is given change the word into ascii code multiply the ascii code with matrix A (i will tell what matrix A is) Append hash function from SHA1=cipher DECRYPTION Multiply cipher with Hash function and both should get the same output

    $31 (Avg Bid)
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    19 penawaran
    Build a network security project -- 3 4 Hari left
    TERVERIFIKASI

    Coding a network security symmetric algorithm and simulation using a simulator like cloudsim, or NS3 or mininet

    $158 (Avg Bid)
    $158 Rata-rata
    4 penawaran

    Want 2,000 real crypto currency focused users for my telegram group

    $42 (Avg Bid)
    $42 Rata-rata
    2 penawaran
    Cryptocurrency builder 4 Hari left
    TERVERIFIKASI

    Cryptocurrency. Build and Ethereum based cryptocurrency. Experience with Blockchain required.

    $1105 (Avg Bid)
    $1105 Rata-rata
    15 penawaran

    I need to look back on my search history over a specific period, but have deleted the history, and the activity log from my Google account. I'm hoping there will be another way to recover this search history. I'm also looking to improve the overall security of my laptop as I have concerns that I have been hacked.

    $215 (Avg Bid)
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    14 penawaran

    I Need fork from PIVX or any others coin that have (MN>POS) My coin need some modify see under what modification i need : ---------------------------------------------------------------------------------------------------------------- Coin Summary Verification Type : POS+MN Block TIme : 60 sec Masternode Collateral : 3000/4000/5000/600...

    $2535 (Avg Bid)
    $2535 Rata-rata
    11 penawaran

    Ok for this project you’ve been given several codes that you need to try and decode. You’ll need to research some of the most common encoding schemes used to try and break each of the codes. An experienced security expert can spot most encoding schemes very quickly, the trick is to check the character set used in the encoded message and the length of the encoded message, these will poi...

    $25 (Avg Bid)
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    3 penawaran

    Need someone who knows to install/set/connect a bitcoin node with market app in Ubuntu vps. Please if you don`t know how don`t bid, I need it fast and for those who knows it a max half an hour job, everything it installed on the server, just connectivity issue.

    $186 (Avg Bid)
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    5 penawaran
    Masternode Host platform (POS/MN) 2 Hari left
    TERVERIFIKASI

    I want to make masternode host platform under this 2 link is running this platform long time. [login untuk melihat URL] [login untuk melihat URL]!/ I need small modify to signup system i want ad signup with referral system and people pay monthly bill with my chose coin. if you 100% sure you can make it then bid and if you have previous work this type of work then bid otherwise please dont dont ...

    $2143 (Avg Bid)
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    7 penawaran
    encryption 2 Hari left

    latest image encryption techniques

    $88 (Avg Bid)
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    8 penawaran

    Specifically, write a program which on the command “Encrypt” does the following: 1. Encrypts a text file on a randomly generated key using AES-256 in the counter mode (CTR). 2. Appends to the resulting ciphertext its HMAC-SHA256 authentication tag (you will need another random key for the MAC). 3. Uploads the ciphertext alongs with the tag to Google Drive. On the command “Decry...

    $17 (Avg Bid)
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    1 penawaran

    I'm looking for a blockchain developer who is good at coin fork. Developer should experienced at building daemons, coin fork, ERC20, ICO, smart contract and so on. Please kindly bid on my project and share your past works with me.

    $635 (Avg Bid)
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    32 penawaran

    solving a task on the basic principles of cryptography as per specifications given

    $36 (Avg Bid)
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    4 penawaran
    Crypto expert required.. 1 hari left
    TERVERIFIKASI

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

    $7 - $72
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    $7 - $72
    40 penawaran