密码学 工作与竞赛

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!
注册并开始赚钱
注册来开始赚钱。 您是a Cryptographer吗?您可以从这些工作中获得报酬!

浏览Freelancer上的工作

项目/竞赛 描述 竞标数/参赛作品数 技能 已开始 结束 价格(HKD)
Crypto-Engineer Chronicled is the untouched leader in supply chain solutions by leveraging block-chain. We want to be at the top. We want to hire someone who is experienced in cryptography as well as software application. Knowing a thing or two about Chronicled platform will be given preference. Please visit [链接已删除,请登录查看] to know their business model before applying for this job. 7 工程, 密码学, Blockchain Feb 22, 2018 今天6天 20时 $1776
Cryptographer Chronicled is the industry leader in supply chain solutions by leveraging block-chain. we want to emulate their success. We are looking for someone who knows about coding like the back o his hand. Preference will be given to those who are familiar with Chronicled outlay. Do visit [链接已删除,请登录查看] to know their business model before applying for this job. 6 电子商务, 密码学, 数据库编程 Feb 22, 2018 今天6天 20时 $1612
Build Bitcoin online Wallet Build Bitcoin online Wallet In php .. 30 PHP, 密码学, Bitcoin Feb 21, 2018 今天6天 17时 $43757
Looking for mining experts Looking for someone with working knowledge of mining software and configuration of rigs. 3 密码学, Bitcoin Feb 21, 2018 今天6天 6时 $1213
Write a set of cryptocurrencies related articles We need a set of several articles having a common theme - cryptocurrencies: - Why to choose a Hardware wallet and a comparison between the most popular - What is a Portfolio Management Software (Order Management System) and why we need one - Basic concepts in cryptocurrencies (blockchain, cryptocurrencies, wallets, addresses, transactions) - Differences between Bitcoin, Ethereum, Ripple etc -... 48 技术写作, Article Writing, Research Writing, 密码学 Feb 21, 2018 今天6天 5时 $1260
Finding encryption algorithm Hi i have collected some requests that an Android app sends , and i need to find the encryption algorithm i used fiddler to collect the requests 3 密码学 Feb 21, 2018 今天6天 2时 $480
Ethereum Wallet I want simple ethereum web wallet and also send and receive function it should be simple web based app where new user signs up and he will have unique eth address for his account and with that eth add if he has balance can send eth or can receive eth to that address 18 密码学, C++编程, node.js, Bitcoin, Ethereum Feb 21, 2018 今天6天 1时 $7261
coin developement we want to develope crypto currency 18 Python, 密码学, Blockchain Feb 21, 2018 Feb 21, 20185天 20时 $93609
cipher 48 encryption decoder this project is to create a tool to decrypt this information: 253113006145063043134018129099033108045194015176 main key DF46452FCE37AB02 key A B3FE5245761626CE key B 4462913297480912 16276775:953>748 4580110730686018 ?1<0569=1;>3;:20 where the result of that should give the following: 4462913297480912 042558FFFFFFFFFF 4580110730686018 043304FFFFFFFFFF I had an applic... 14 C 编程, 矩阵及数学软件, 算法, 密码学, C++编程 Feb 20, 2018 Feb 20, 20185天 8时 $3364
NOMP & MPOS Pool With ZCASH Support I am looking for a NOMP ([链接已删除,请登录查看]) cryptocurrency mining pool to be setup that will support the Equihash algo. Specifically this pool should work for ZCASH. Also a major requirement for the pool is that it use the MPOS ([链接已删除,请登录查看]) front end. If you haven't built pools before using the technologies please do not bid. I need this built very quickly and it needs to be confirmed work... 4 软件构架, 密码学 Feb 20, 2018 Feb 20, 20185天 3时 $2066
算法, 密码学, 工程, 数学, 统计学 Feb 20, 2018 Feb 20, 201827天 21时
Need Android and IOS mobile app for ewallet holding coins for our erc20 Need Android and IOS mobile app for ewallet holding coins for our erc20. Please only bid if you understand erc20. This app will only be used to hold coins not exchanges 12 Mobile App Development, 安卓, 密码学, Ethereum Feb 19, 2018 Feb 19, 20184天 16时 $18927
Custom blockchain crypto coin Customized PoW/PoS with masternodes blockchain . PoW untill some block.. Algorithm should be used ASCII resistant and new algorithm with new tech Custom PoS - Leasing Proof of Stake, Waves have implemented this. We are not creating a wheel here, I`m looking for someone who can take tech and merge it, customize. Lets chat about features, details and milestones. 24 C 编程, 密码学, C++编程, Blockchain, Full Stack Development Feb 19, 2018 Feb 19, 20184天 7时 $82829
NEO Blockchain Protocol (ICO, Token, Wallet) I want to build my own blockchain based on NEO PROTOCOL. Requires a VERY strong development team to build a crypto virtual banking services blockchain similar to crypterium. io I need a team that can build everything from ZERO. 32 Mobile App Development, 密码学, Blockchain Feb 19, 2018 Feb 19, 20184天 4时 $448007
Cryptocurrency Virtual Bank I want to build my own blockchain. Requires a VERY strong development team to build a crypto virtual banking services similar to crypterium. io I need a team that can build everything from scratch/ground up; web, app, ICO, token, wallet, blockchain, maintenance, security, etc etc. Budget: USD$ 70,000 and development period: 4 months. 49 Mobile App Development, 密码学, Blockchain, Web Development, Payment Gateway Integration Feb 19, 2018 Feb 19, 20184天 1时 $462138
Integrate API for wallet receiving address generate and receive coin on generated address of BTC, BCH, ETH, LTC, XRP, DASH wallet. Integrate API for wallet receiving address generate and receive coin on generated address of BTC, BCH, ETH, LTC, XRP, DASH wallet. 13 PHP, 密码学, Laravel, Blockchain, Ethereum Feb 19, 2018 Feb 19, 20184天 $3305
Crypto-Engineer Chronicled is the untouched leader in supply chain solutions by leveraging block-chain. We want to be at the top. We want to hire someone who is experienced in cryptography as well as software applications. Knowing a thing or two about Chronicled platform will be given preference. Please visit [链接已删除,请登录查看] to know their business model before applying for this job. 13 Python, C# 编程, 密码学 Feb 19, 2018 Feb 19, 20183天 18时 $1753
Cryptographer Chronicled is the industry leader in supply chain solutions by leveraging block-chain. We want to emulate their success. We are looking for someone who knows about coding like the back of his hand. Preference will be given to those who are familiar with the Chronicled outlay. Do visit [链接已删除,请登录查看] to know their business model before applying for this job. 2 密码学, Blockchain, Marketing Strategy Feb 19, 2018 Feb 19, 20183天 18时 $1862
Entropy analysis question I am looking for help to investigate an average min entropy concern . The project will require solid knowledge in information theory or min entropy . please contact me for further details 4 算法, 统计学, 密码学, 数学, 统计分析 Feb 18, 2018 Feb 18, 20183天 16时 $556
Custom Crowdsourced platfor I would like you to create a website which allows users to create their own crowdfunding campaigns and a cryptocurrency as well. Users can fund their businesses by selling equity, stock or their own crypto to fund their [链接已删除,请登录查看] would mean that real time data would have to be displayed about the stock value and the company progress, so basically integrating a stock market. A company would als... 9 PHP, 网站设计, 密码学, HTML, Blockchain Feb 18, 2018 Feb 18, 20183天 10时 $4225
Reverse Engineering Project - open to bidding For a publication library Win32 app, I am looking to extract data from its proprietary and undocumented file format. * It is multilingual and precedes Unicode, most likely compressed. * The individual documents are search indexed (indices in separate files). * They are sorted into a hierarchy: Publication (file-level) > Chapter > Content. * Some publications are magazines, their hierarchy i... 5 C 编程, 计算机安全, 软件构架, 密码学, C++编程 Feb 17, 2018 Feb 17, 20182天 12时 $3951
Cryptographer Chronicled is the industry leader in supply chain solutions by leveraging blockchain. We want to emulate their success. We are looking for someone who knows about coding like the back of his hand. Preference will be given to those who are familiar with the Chronicled outlay. Do visit [链接已删除,请登录查看] to know their business model before applying for this job. 0 密码学 Feb 17, 2018 Feb 17, 20182天 6时 -
Blockchain Creation for a new POS/POW coin We are looking for someone that is able to create a new POS/POW coin. We have around a 7 days deadline We have the the original code we want to fork from. But need a few changes and also the wallets and block explorer creation. Let us know your past experience in this area and how quick you are able to do this. Thank you 17 C 编程, 密码学, Bitcoin, Blockchain, Ethereum Feb 17, 2018 Feb 17, 20182天 2时 $24452
Crypto Wallet and Payment system Hi I'm looking for someone to make this mobile application: People can only deposit a specific cryptocurrency on the wallet (more info in pm) The wallet stores the cryptocurrency The one using the app can also pay, but when paying it converts the cryptocurrency into other cryptocurrency (for example: you convert it to Ripple or Litecoin because the shop only accepts those cryptos) It wor... 25 Java, 密码学, C++编程 Feb 17, 2018 Feb 17, 20182天 2时 $32442
Crypto Wallet designing I need a development team from punjab who works on blockchain projects with me 8 密码学, Blockchain Feb 17, 2018 Feb 17, 20181天 22时 $31224
crypto exchange we need a crypto exchange like binance or poloniex bitfinex. 23 C 编程, 计算机安全, 软件构架, 密码学, Bitcoin Feb 16, 2018 Feb 16, 20181天 2时 $37816
Unhash / unencrypt email addresses based on a large sample of known values A certain well know market place hide email addresses from sellers replacing a customers real email address with a hashed value. For example a real customer email address of [链接已删除,请登录查看]@[链接已删除,请登录查看] is shown as abc123xyz987@marketplace.com. I have obtained a large number of about 400 these email / hashed email pairs. The challenge is based on this to work out if there is a way of revealing... 7 密码学, 邮件处理 Feb 16, 2018 Feb 16, 20181天 2时 $1243
ERC20 Token Exchange I have requirements of an exchange website which is purely based in erc20 tokens exchanges [链接已删除,请登录查看] I want to start with top 25 tokens now. Can you create this type of exchange or can edit your current exchange to something like this .. it is more easier... because it works on one blockchain which is ethereum only. 17 Python, 密码学, C++编程, node.js, Ethereum Feb 16, 2018 Feb 16, 20181天 $11604
Required Crypto Currency Exchange within 3 days Required Crypto Currency Exchange within 3 days with 15 coins 14 PHP, SQL, 密码学, Laravel Feb 16, 2018 Feb 16, 201819时 22分 $45480
sagemath with combinatorics, graph theory, cryptography, and number theory sagemath with combinatorics, graph theory, cryptography, and number theory. I'll send you a file with more information 5 工程, 矩阵及数学软件, 算法, 密码学, 数学 Feb 15, 2018 Feb 15, 201815时 10分 $235
Crypto Arbitrage Trading Bot - 1 extra Altcoin Exchange 1 Days work for an expert. Please DO NOT post a generic / Auto responser / copy & paste “contact me” / "we have 10 developers". Do Respond to 'specific points' in the Requirement Specification below in order to be considered. This is a 1st test project and there will be more work afterwards IF successful. PLEASE only apply when you meet the following requi... 7 PHP, 阿帕奇, 密码学, Bitcoin, Blockchain Feb 15, 2018 Feb 15, 201813时 51分 $23765
Need help with Applied Cryptography I have some problems in Applied Cryptography which i need to be resolved asap. pls see the attachment and if you can help me with this , ping me asap 0 Research Writing, 密码学, Computer Science Feb 15, 2018 Feb 15, 20183时 48分 -
Cryptocurrency Exchange Website (ERC20 Token, minable coins like BTC, LTC and others) ERC20 Token and minable coins like BTC, LTC and others Reference: [链接已删除,请登录查看] Also be able to add and remove erc20 token. Implementation like IP stuff, when a user long in with different IP, google 2fa etc Questions:-- 1. How do you plan to secured investors fund? 2. How can we plan to safe the website from hackers? 3. how to add coin to pair and trade in the exchange? 21 软件构架, 密码学, Bitcoin, Web Development Feb 14, 2018 Feb 14, 2018已经结束 $10962
www.cryptomudra.com Crypto specific website. Eg. How blockchain is revolutionizing Healthcare industry. 7 SEO, Article Writing, 密码学, 内容写作 Feb 14, 2018 Feb 14, 2018已经结束 $152
Ico Marketing Looking for consultants to advice on ICO marketing. You will need be responsible for ICO strategies, marketing and launch. 12 网络市场, 市场, 密码学, Blockchain Feb 14, 2018 Feb 14, 2018已经结束 $131504
Traceless P2P payment BLOCKCHAIN Build the entire [secured trackless payment blockchain] with ICO, own cryptocurrency, and own wallet. Budget is USD70,000 and dateline is 4 months. 38 Java, 密码学, C++编程, Bitcoin, Blockchain Feb 13, 2018 Feb 13, 2018已经结束 $559778
Looking for a Block Chain Architect Looking for a blockchain architect 13 密码学, Blockchain, Ethereum Feb 13, 2018 Feb 13, 2018已经结束 $125
Adopt a block chain technician. I'm going to make a coin exchange. Development of electronic wallet without security problems. You need to develop your own api. [链接已删除,请登录查看] You need to create a web site with similar but high quality, original designs and features. Developers buy everything including paid themes / APIs / plugins and make everything. ★There are some important suggestions. I would like to pay in... 9 密码学, Bitcoin, Blockchain Feb 13, 2018 Feb 13, 2018已经结束 $87437
ICO Website, Token and Smart Contract Development This is for an upcoming ICO Project, and we are seeking for a team who can walk with us from the initial to the final stage. Previous experience in Smart Contract Development on Ethereum is a must. Your token development skills should be top-notched, as anyone can practically make their own token using readily available resources online. Usage of ready-made templates online (without improvement... 29 PHP, Javascript, Python, 网络安全, 密码学 Feb 12, 2018 Feb 12, 2018已经结束 $51893
Cryptocurrency development We are looking for extensive crypto coin developer for developing our coin. Fix date is 25th Feb so need before that and more detail on freelancer chat. Please only bid if you have rapid solution with demo. Thank you! 6 C 编程, Javascript, 软件构架, 密码学, C++编程 Feb 12, 2018 Feb 12, 2018已经结束 $4069
Creating a alt coin I wanted to create an alt coin similar like litecoin or dash coin 2 密码学 Feb 12, 2018 Feb 12, 2018已经结束 $3380
ETH Fork Cryptocurrency with block explorer and wallet. Hi, Looking for a developer who is having experience in developing "Eth Fork Cryptocurrency" with block explorer and wallet. Please only bid if you have rapid solution with demo. Thank you! 14 PHP, 软件构架, 密码学, node.js Feb 12, 2018 Feb 12, 2018已经结束 $11056
Looking for a Chief Technology Officer (CTO) to monitor Blockchain Technology development I am looking for a Chief Technology Officer (CTO) to monitor our Blockchain Technology and Digital Bank softwares development and oversee my team. QUALIFICATIONS: - You must be highly knowledgeable about all coding and modern programming languages - You must be very proficient in Blockchain Technology and Cryptocurrency system - You must be a team leader - You must be available almost roun... 16 计算机安全, 云计算, 密码学, Bitcoin, Blockchain Feb 12, 2018 Feb 12, 2018已经结束 $4546
Crypto expert required I need a Crypto expert for my current project. If you have knowledge please bid. Details will be shared in message with the selected freelancers. 11 PHP, 平面设计, 软件构架, 密码学, HTML Feb 11, 2018 Feb 11, 2018已经结束 $1055
3 USD per article of 500-600 words. I want to hire freelancers those have fully/unlimited/widely knowledge about cryptocurrency, transactions, transactions fees, litecoin, Bitcoin.. Don't bid if you not have any knowledge about it and cannot write to the point Article, Article should relevant to the topic that I'll provide, experience freelancers recommended. if you are a timewaster then do not bid, if i will fin... 13 Research Writing, 密码学, Bitcoin Feb 11, 2018 Feb 11, 2018已经结束 $114
3 USD per article of 500-600 words..... I want to hire freelancers those have fully/unlimited/widely knowledge about cryptocurrency, transactions, transactions fees, litecoin, Bitcoin.. Don't bid if you not have any knowledge about it and cannot write to the point Article, Article should relevant to the topic that I'll provide, experience freelancers recommended. if you are a timewaster then do not bid, if i will fin... 6 Research Writing, 密码学, Bitcoin Feb 11, 2018 Feb 11, 2018已经结束 $126
3 USD per article of 500-600 words I want to hire freelancers those have fully/unlimited/widely knowledge about cryptocurrency, transactions, transactions fees, litecoin, Bitcoin.. Don't bid if you not have any knowledge about it and cannot write to the point Article, Article should relevant to the topic that I'll provide, experience freelancers recommended. if you are a timewaster then do not bid, if i will find ... 4 Research Writing, 密码学, Bitcoin Feb 11, 2018 Feb 11, 2018已经结束 $119
I need someone who can create a ERC20 If you know how to create ERC20, contact me. 15 密码学, Blockchain, Ethereum Feb 10, 2018 Feb 10, 2018已经结束 $3458
Professional crypto analysist for proposed Simplified AES-3 I have proposed a Simplified AES that is tested experimentally and compared against multiple cipher. I wish to extend the analysis by providing additional analysis based using the following techniques. - Differential and linear cryptanalysis - Algebraic attacks - Key schedule attacks - Etc .. This will include writing the text that describe each in details. 4 计算机安全, 密码学, 数学 Feb 10, 2018 Feb 10, 2018已经结束 $798
Crypto exchange app similar to Jaxx Crypto Exchange app like Jaxx to accept credit cards/bank transfers with local currency KYC/MLA verification Exchange should support tokens 19 Mobile App Development, 密码学, Bitcoin, Blockchain, Ethereum Feb 10, 2018 Feb 10, 2018已经结束 $57454
Showing 1 to 50 of 297 entries
« 1 2 3 4 5 »