Κρυπτογράφηση Δουλειές και Διαγωνισμοί

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!
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Εργασία/Διαγωνισμός Περιγραφή Προσφορές/Συμμετοχές Δεξιότητες Ξεκίνησε Τελειώνει Τιμή (EUR)
ecrecover solidity function return publicKey I need ecrecover solidity function with return the publicKey Resources: [login to view URL] Javascript: /** * ECDSA public key recovery from signature * @param {Buffer} msgHash * @param {Number} v * @param {Buffer} r * @param {Buffer} s * @return {Buffer} publicKey */ [login to view URL] = function (msgHash, v, r, s) { const signature = [login to view URL]([[login to view URL](r, 32),... 3 Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 22, 2018 Σήμερα6μέρα 18ώρα €453
Base58Check solidity function I need Base58Check solidity function Resources: [login to view URL] [login to view URL] [login to view URL] 4 Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 22, 2018 Σήμερα6μέρα 18ώρα €458
Install and integrate Top 15 Crypto Currency Daemons using PHP Only the developers who already executed similar work successfully can contact me and work on this project. Must be finished within 1 day. 5 Κρυπτογράφηση, Bitcoin, Blockchain May 22, 2018 Σήμερα6μέρα 12ώρα €849
Web development -- 2 I need a new website. I need you to design and build my online store. Cloud mining website with all panels... 18 PHP, Σχεδιασμός Ιστοσελίδας, Σχεδιασμός Γραφικών, Κρυπτογράφηση, Bitcoin May 22, 2018 Σήμερα6μέρα 12ώρα €1649
Create a brand new AltCoin (NO ICO) with its of ecosystem independent from any currency 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... 26 PHP, Αλγόριθμος, Κρυπτογράφηση, Προγραμματισμός C++, Blockchain May 21, 2018 Σήμερα6μέρα 2ώρα €2197
blockchain app in python implmenting a tutorial on internet to build a cryptocurrency from scratch using python. Instructions are in a couple of blogposts . 9 Python, Κρυπτογράφηση, Ανάπτυξη Λογισμικού May 21, 2018 Σήμερα6μέρα €340
Property Matching Website and Apps This platform will allow property agents to co-broke and communicate with each other through the website and mobile app 80 PHP, iPhone, Android, Κρυπτογράφηση, MySQL May 21, 2018 May 21, 20185μέρα 20ώρα €1991
Security analysis of existing cryptographic system 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) 7 Ασφάλεια Ιστού, Ασφάλεια Υπολογιστή, Κρυπτογράφηση, Ασφάλεια Διαδικτύου May 19, 2018 May 19, 20184μέρα 7ώρα €298
Looking for PHP and Linux EXPERT ONLY 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... 23 PHP, Linux, Κρυπτογράφηση, OpenVPN May 19, 2018 May 19, 20183μέρα 17ώρα €463
Cryptocurrency 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... 33 PHP, Γλώσσα Προγραμματισμού C, Κρυπτογράφηση, Προγραμματισμός C++, Blockchain May 19, 2018 May 19, 20183μέρα 15ώρα €2494
Install and configure Peatio Crypto Currency Exchange. Open source Ruby on Rails. Need help installing peatio on server and also need to be taught how to add additional currencies. 15 Ruby on Rails, Κρυπτογράφηση May 18, 2018 May 18, 20183μέρα 3ώρα €332
Crypto Currency Payment Getaway Website Application I need Ethereum payment Accept system. like as a [login to view URL] system. if you have any question please ask me. Thanks 27 PHP, Αρχιτεκτονική Λογισμικού, Κρυπτογράφηση, MySQL, Bitcoin May 17, 2018 May 17, 20181μέρα 19ώρα €1117
article writers this is for you... i want to write crypto related articles . so please bid 100 words how much you need. this is . long term relationship... thanks 28 Blog, Article Writing, Επανασυγγραφή Άρθρου, Κρυπτογράφηση, Συγγραφή Περιεχομένου May 17, 2018 May 17, 20181μέρα 17ώρα €3
Build HTML5 Website 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... 16 Κρυπτογράφηση, Ηλεκτρονικό εμπόριο, HTML5, PHP, Stripe May 17, 2018 May 17, 20186μέρα 16ώρα €805
Re-write news articles on crytocurrency (Regular) I need someone to write latest news articles on crypto currency world on regular basis. Articles can be picked up from various crypto news sites (like [login to view URL], [login to view URL], [login to view URL] etc) and re-written to pass the copyscape professional. Each article should be approx 500-700 word length, informative and interesting, A writer with good writing style will be engaged re... 40 Article Writing, Επανασυγγραφή Άρθρου, Κρυπτογράφηση, Bitcoin, Συγγραφή Περιεχομένου May 17, 2018 May 17, 20181μέρα 8ώρα €273
Looking for C and C++ and Assembly Expert -- 2 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... 15 Γλώσσα Προγραμματισμού C, Κρυπτογράφηση, Προγραμματισμός C++, Συμβολική Γλώσσα , Windows API May 16, 2018 May 16, 20181μέρα 6ώρα €3225
Need python developer we need a python developer for a fintech project. 20 Python, Αρχιτεκτονική Λογισμικού, Κρυπτογράφηση May 16, 2018 May 16, 201813ώρα 10λ €33
Blockchain developer Blockchain developer for a Pre-ICO smart contract 20 PHP, Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 15, 2018 May 15, 20181ώρα 13λ €300
Build or clone a cryptocurrency mobile wallet 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. 27 Mobile App Development, Android, Κρυπτογράφηση, HTML May 15, 2018 May 15, 2018Έχει λήξει €1487
ICO Whitepaper Writing -- New Launching Cryptocurrency 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, 21 Copywriting, Τεχνική Συγγραφή, Research Writing, Κρυπτογράφηση, Blockchain May 15, 2018 May 15, 2018Έχει λήξει €662
Golang Web Developer We have requirement for Golang Dev. for ongoing project , we need expert gophers with extended knowledge of cryptography and cryptocurrency Regards 16 Golang, Κρυπτογράφηση, Bitcoin, Blockchain, Web Development May 14, 2018 May 14, 2018Έχει λήξει €68
Crypto Exchange Website 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... 34 PHP, CMS, Κρυπτογράφηση, MySQL, Ethereum May 14, 2018 May 14, 2018Έχει λήξει €594
Need Urgent bitcointalk and reddit ICO MARKETING MANAGER 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 2 Διαφήμιση, Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 13, 2018 May 13, 2018Έχει λήξει €31
Build blockchain add coin and smart contracts We are looking for a developer to who can develop BIT SHARES EXCHANGE Custom Development.. lower bid will win this project.. 17 PHP, Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 13, 2018 May 13, 2018Έχει λήξει €1445
I looking for student living on USA 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. 4 Σχεδιασμός Ιστοσελίδας, Κρυπτογράφηση, Bitcoin, Ethereum May 12, 2018 May 12, 2018Έχει λήξει €44797
Ethereum Developer need i need expert in ethereum development for apps and games and tokens projects is deferent with deferent budget so we first talk 7 Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 12, 2018 May 12, 2018Έχει λήξει €243
Market Depth Chart Function Required 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. 4 PHP, Κρυπτογράφηση, jQuery / Prototype, Bitcoin May 11, 2018 May 11, 2018Έχει λήξει €162
blockchain based email system 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... 27 Αρχιτεκτονική Λογισμικού, Κρυπτογράφηση, Blockchain May 11, 2018 May 11, 2018Έχει λήξει €2963
Experienced writer need (blogs on Cryptocurrencey and BlockChain news) 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. 18 Blog, Επανασυγγραφή Άρθρου, Κρυπτογράφηση, Bitcoin, Blockchain May 10, 2018 May 10, 2018Έχει λήξει €16
Require short documentation on JSONs exchanged between pool, coin daemon and miners we have created a coin and we want some help with our mining pool (the pool will be for our coin only ) 8 Σχεδιασμός Ιστοσελίδας, Κρυπτογράφηση May 9, 2018 May 9, 2018Έχει λήξει €506
Cryptocurrency P2P Decentralized Exchange Website - Long Term Plan 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... 26 PHP, Αρχιτεκτονική Λογισμικού, Κρυπτογράφηση, MySQL, Blockchain May 8, 2018 May 8, 2018Έχει λήξει €3218
Whatsupp MSg decrypt i have a file in format of msg.db.crypt12. 2 Κρυπτογράφηση May 8, 2018 May 8, 2018Έχει λήξει €864
Ethical hacking I need a teacher or someone who wants to teach me some CNO , CNA , CNE 6 Ασφάλεια Ιστού, Ασφάλεια Υπολογιστή, Research Writing, Κρυπτογράφηση, Ασφάλεια Διαδικτύου May 7, 2018 May 7, 2018Έχει λήξει €19
Evaluation and analysis of cryptographic system Security evaluation of an existing cryptogrphic system 6 Ασύρματη Σύνδεση, Ασφάλεια Υπολογιστή, Κρυπτογράφηση May 7, 2018 May 7, 2018Έχει λήξει €225
Distribution partner for OTC Exchange Bitcoin: Co-Branding solution for qualified Crypto Traders 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... 7 Κρυπτογράφηση May 7, 2018 May 7, 2018Έχει λήξει €3476
Modify an Erlang program, must have expertise knowledge of Erlang I need to Modify an Erlang program Must have expertise knowledge of Erlang 5 Erlang, Κρυπτογράφηση May 7, 2018 May 7, 2018Έχει λήξει €436
erc20 ICO token contract - urgently 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... 20 Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum May 6, 2018 May 6, 2018Έχει λήξει €14
Crypto expert required.. I need a Crypto expert for my current projects. If you have knowledge please bid. Details will be shared in message with the freelancers. 13 Python, Κρυπτογράφηση, Bitcoin May 5, 2018 May 5, 20183μέρα 12ώρα €61
Recover bitcoin private key Recover bitcoin private key 2 Κρυπτογράφηση May 4, 2018 May 4, 2018Έχει λήξει €437
Looking to hire Freelancer with Extensive Knowledge of Cryptography, Blockchain & Information Security Guys i am looking to hire someone for long term with following skill sets. Standards:- CCID | IDAS | PKI | FOAS | TOTP | HOTP | OCRA | FIDO ALLIANCE UF2 & UAF | ISO 7816 | X509 CERTIFICATE CRYPTOGRAPHY:- RSA | AES | DES | SECURE HASG ALGORITHM | PKI | SIGNATURES | CERTIFICATE | CERTIFICATE CHANING BLOCKCHAIN :- You should be able to setup Blockchain application and bind it with our Mo... 6 Java, Αρχιτεκτονική Λογισμικού, Κρυπτογράφηση, Blockchain, Ethereum May 4, 2018 May 4, 2018Έχει λήξει €16
Detecting documents forged by printing and copying Have to implement a research IEEE paper. "Detecting documents forged by printing and copying" 0 Κρυπτογράφηση May 3, 2018 May 3, 2018Έχει λήξει -
Adding Tensority algorithm to Yiimp pool code The new Bytom coin uses a brand new algorithm called Tensority, a new PoW consensus algorithm,where matrix and tensor operations are introduced into the hashing process. We are interested in getting this algorithm integrated to our Yiimp stratum servers. Any one up for the task? 10 Γλώσσα Προγραμματισμού C, Αλγόριθμος, Αρχιτεκτονική Λογισμικού, Κρυπτογράφηση, Προγραμματισμός C++ May 3, 2018 May 3, 2018Έχει λήξει €1071
I want to build a website that can reward users through blockchain. just like steemit I need a new website. I need you to design and build it. 37 Python, Σχεδιασμός Ιστοσελίδας, Σχεδιασμός Γραφικών, Κρυπτογράφηση, Blockchain May 3, 2018 May 3, 2018Έχει λήξει €572
Looking for someone who is super active in blockchain forums and online communities and have knowledge about crypto currency and blockchain - 28/04/2018 22:18 EDT Need someone to manage telegram group of 100k people. He should be able to raise topics, greeting new comers, spread news/messages, educating peoples, answering questions. Anything that building a community needs 7 Ανάρτηση Φόρουμ, Κρυπτογράφηση, Επικοινωνίες, Blockchain Apr 28, 2018 Apr 28, 2018Έχει λήξει €7
Writing a batch file for cryptocurrency mining - 27/04/2018 01:29 EDT I need a developer with a knowledge of cryptocurrency mining to write a batch script that sets up and starts a mining process with many GPUs. 7 Κρυπτογράφηση, Δέσμες Εντολών Γλώσσας Υπολογιστή, Programming, Blockchain, Scripting Apr 27, 2018 Apr 27, 2018Έχει λήξει €247
installation wordpress templete in our server and xampp - 26/04/2018 16:21 EDT installation wordpress template in our server and xampp 23 PHP, WordPress, Κρυπτογράφηση, Bitcoin, Ethereum Apr 26, 2018 Apr 26, 2018Έχει λήξει €69
smart contracts for casino games - 26/04/2018 15:28 EDT looking to get someone to write the smart contract for 2 casino games. we'd expect the games to be written in Solidity and include unit tests the games/contract are coinflip user 1 puts in X amount of ETH, user 2 puts in the same amount, when the game it played one player get their original amount of ETH, plus the other users amount, minus a commission, which goes to user 3 (the hou... 9 Συμβόλαια, Κρυπτογράφηση, Ethereum Apr 26, 2018 Apr 26, 2018Έχει λήξει €460
Need plaintext for Joomla Hashes (bcrypt) - 26/04/2018 13:31 EDT We need someone with enough hashing potential to retrieve plain-texts for the following 2 Joomla hashes. You can use any tools like John the ripper or Hashcat or any other tools which you prefer that might yield better results. $2y$10$zjMN./xZ03ZpVNJHivz7XuEOCnpfwQqj1Ar3Q2DwsJRDJxuJvOgWC $2y$10$v6xsY84vcWVFS0E2uP1JbOpd5dBqmD861xAg4xozaLfFiiWdiyVti Payment will be released as soon as we rece... 1 Linux, Joomla, Κρυπτογράφηση, Penetration Testing Apr 26, 2018 Apr 26, 2018Έχει λήξει €94
ERC20 Token Creation I need someone to create a ERC20 Ethereum token for me. I know it takes less than 5 mins but I want to make sure it's done right. I also want someone to help me to submit my token to an exchange like Ether Delta. Please only apply if you know how to work with ERC20 tokens 10 Κρυπτογράφηση Apr 26, 2018 Apr 26, 2018Έχει λήξει €204
Abhi Rental We are looking for a team member who can create ERC20 Token, smart contract for us. 6 Συμβόλαια, Κρυπτογράφηση Apr 26, 2018 Apr 26, 2018Έχει λήξει €497
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