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!
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项目/竞赛 描述 竞标数/参赛作品数 技能 已开始 结束 价格(CNY)
Modify Bitmain x3 to mine the new CryptonightV7 Algo (Firmware?) I am looking into the possibilities of modifying the Bitmain x3 to work with the new CryptonightV7 Algo that Monero just forked to. There is a rumor that the firmware could be modified to work with the new algo. 8 电子, 微控制器, 软件构架, 密码学, 编程 Apr 19, 2018 今天6天 6时 ¥121596
Creation and Development of a New Cryptocurrency (ICO) Ethereum based ICO Need to Create Creation and Development of a New Cryptocurrency (ICO) Ethereum based ICO 10 平面设计, 徽标设计, 密码学, Blockchain Apr 19, 2018 今天6天 3时 ¥7173
premining pow/pos masternode coins which i created Hello. i need to premine my own coins. i don't know how to premine. i am looking a freelancer who can premine my coin. Thanks 5 密码学, Bitcoin, Ethereum Apr 19, 2018 Apr 19, 20185天 23时 ¥2039
OpenCL FPGA Code modification I am looking for someone to modify the OpenCL code base of an AMD focused Crypto Mining Software and optimize it for OpenCL Based FPGA using this package [链接已删除,请登录查看] Please respond directly with any questions such as specific mining software and such. 8 C 编程, Verilog / VHDL, 密码学, OpenCL, FPGA Apr 17, 2018 Apr 17, 20184天 12时 ¥14547
MS office builder coding and scripting I'm looking for someone who can build ms office silent doc builder (or one build) or refud exist one take for references CVE-2017 8570, 2017-8759, 2017-11882, 2017-0199 consider that the generated file (Output) should be 100% FUD not UD, and can bypass protection view The doc exploit must be SILENT type (Not Macro). The word document when opened must silently and automatically execute t... 1 Python, 计算机安全, 密码学, Ruby, 黑客营销 Apr 17, 2018 Apr 17, 20184天 7时 ¥975
Data Encryption 1. Secure data and encrypt using private keys as Read only, no delete, update or edit. 2. Source of origin, Date&Time stamp. 3. decrypt data with using the specific keys, add user. 6 计算机安全, 密码学 Apr 17, 2018 Apr 17, 20184天 6时 ¥5261
Daemon instance 0 rejected a supposedly valid block Hello. i am going to make pow/pos masternode coin. i have changed only some parameters from basic coin. And i have installed nomp pool on vps server. when i mine coins in pow phase, nomp says that "Daemon instance 0 rejected a supposedly valid block. " All block was rejecting now. [链接已删除,请登录查看] says as follows: ERROR: CheckBlock() : first tx is not coinbase ERROR: ProcessBlock()... 3 Linux, 密码学, Bitcoin, Ubuntu, Ethereum Apr 16, 2018 Apr 16, 20183天 16时 ¥4140
Simple Python socket programming on HMAC(cryptography) Hi, this is a simple socket programming project. We already have the connection and everything set up, you just have to help us send a HMAC to the server, the server would decrypt it if it is correct or else it would reject it. Text me up, if you wanna talk in detail! 7 Java, Python, 计算机安全, 密码学 Apr 16, 2018 Apr 16, 20183天 10时 ¥215
Bolinger Band Bot for GDAX Looking for a bot that will trade on Bolinger Band levels, RSI levels and MACD levels. Would like to trade in 15 minute intervals at most. 8 密码学, Bitcoin Apr 16, 2018 Apr 16, 20183天 9时 ¥7827
SEO Article on Ontology Need someone who knows Ontology Network in depth. Looking for long term writer. 4 网站设计, 密码学, HTML, Bitcoin, Blockchain Apr 16, 2018 Apr 16, 20183天 3时 ¥208
I need ERC 20 smart contract fixing or issue or audit Hi, You will be doing the following: -A complete audit of ERC 20 Smart contract and provide an audit report -Find issues and fix How many smart contracts audits you have completed? Please provide sample audit report. 12 密码学, Blockchain, Ethereum Apr 15, 2018 Apr 15, 20182天 9时 ¥5801
ERC20 creation I am looking for ERC20 token develop for me. 2 密码学 Apr 15, 2018 Apr 15, 20182天 8时 ¥806
Understand how Bitfinex calculates transactions? By adding all of my transactions that the API returns, I can not find the result that I have in my balance. Example with IOTA: My balance is 281.64315651000 IOTA (return by /v1/balances) List of transactions (return by /v1/mytrades): [ {"Price": "0.0002993", "amount", "79.28790511", "timestamp", "1513796864.0", "type&qu... 1 Metatrader, 密码学, Bitcoin, Blockchain, Ethereum Apr 15, 2018 Apr 15, 20182天 1时 ¥864
Software Security I am looking for someone who can help me with software security. This project will require extensive experience in cryptography, engineering, mathematics, complex algorithms and "C" Programming. If interested contact me to discuss details. Thank you 9 工程, 矩阵及数学软件, 算法, 密码学, 数学 Apr 14, 2018 Apr 14, 20181天 9时 ¥6952
Need a crypto dev for a game You must be an experienced developer in cryptos. You must have worked in cryptos before. You will do backend and frontend. You must have experience with design. You will have to edit casino scripts too, so you must have knowledge in casinos games. Cryptos experience : BTC ETH LTC BCH XMR DOGE NANO NEO VERGE VEN OMG XLM Not interested to use 3rd party site as gateway to manage deposit / wit... 21 PHP, Javascript, 密码学, Bitcoin, Ethereum Apr 14, 2018 Apr 14, 20181天 1时 ¥41366
Looking for a freelancer to help working for a cryptocurrency project. Skill needed: strong c++ , cryptography skill We are working on a crpytocurrency project that createssomething similar to Raiblocks(Nano) and we are looking for freelancers to help with the project. PM me to learn more about the project and the whitepaper. 14 算法, 软件构架, 密码学, C++编程, Full Stack Development Apr 14, 2018 Apr 14, 20181天 ¥239
Convert BlockChain Database from LevelDB to BerkeleyDB Write a conversion C++ script to convert the Ethereum Database that has 5.3M Blocks to the new BerkeleyDB structure and run on our Server. You Need to Know 1. The Structure of the Ethereum Database which is in LevelDB 2. Then study the Graphene Blockchain Database which is in BerkeleyDB. The Blockchain Database that you are converting to is open source at: [链接已删除,请登录查看] Experience in C... 19 软件构架, 密码学, C++编程, Ubuntu, Blockchain Apr 13, 2018 Apr 13, 2018已经结束 ¥3405
ERC 20 Token for ICO with contract I need an ERC-20 token created with contract and must be verified on etherscan. will give you details of token in chat. ***ONLY BID if you have created tokens before 27 密码学, Bitcoin, Blockchain, Ethereum Apr 11, 2018 Apr 11, 2018已经结束 ¥4550
Cyber security related topic ideas Cyber security related topic ideas, something related to security of internet of things and smart grids 25 计算机安全, Research Writing, 密码学, 网络安全, Penetration Testing Apr 11, 2018 Apr 11, 2018已经结束 ¥216
i need a software programmer we are a new startup company looking for a team leader to start a mobile encryption software, 7 密码学 Apr 11, 2018 Apr 11, 2018已经结束 ¥359528
crypto coin block chain based cryptocurrency . 13 密码学 Apr 7, 2018 Apr 7, 2018已经结束 ¥12961
BLOCKCHAIN/dApps development company This project is strictly for teams and companies with demonstrable proof of work force with profiles and proof of projects by Github accounts and live projects. Blockchain/dApps are becoming very popular in Nigeria, especially at the enterprise level and I often get requests from within and all over the world to manage such projects. I require a team/company to develop for me when I get these p... 17 密码学, Blockchain, Ethereum Apr 7, 2018 Apr 7, 2018已经结束 ¥4838
Complete A New Genesis Block Of Pivx Clone. We Already Have Wallet Built [链接已删除,请登录查看] 2 C 编程, .NET, C# 编程, 密码学, C++编程 Apr 6, 2018 Apr 6, 2018已经结束 ¥956
build me a exe to xlx converter fud i need to a program that changes exe to xls that executes the exe when the xls document is opened 9 Python, 密码学, 编程, 编程 Apr 6, 2018 Apr 6, 2018已经结束 ¥1013
Digital forensics report Digital forensics report 3000 words with references, details will be provided 16 计算机安全, 技术写作, 密码学, 网络管理, Computer Science Apr 6, 2018 Apr 6, 2018已经结束 ¥585
Cryptography Mathematics & Blockchain Advisor Please review our project: [链接已删除,请登录查看] Let us know how you can best contribute to this incredible project. Our Vision A digital economy where consumers can buy goods and services with any cryptocurrency at their favorite merchants. A place where visionaries and creators can collaborate to launch innovative distributed applications in a world that relies on trustless transactions in any cur... 13 密码学, Blockchain Apr 4, 2018 Apr 4, 2018已经结束 ¥94
ICO Thread at Bitcointalk We need the person who can make and share thread at bitcointalk for ICO & Bounty campaign. only serious people contact us. 10 翻译, Photoshop, Illustrator, 密码学, Bitcoin Apr 4, 2018 Apr 4, 2018已经结束 ¥151
Yiimp Pool Installation Need yiimp pool install to ubuntu server please give bid with your sample yiimp site 5 Linux, 密码学, Bitcoin, Ubuntu Apr 4, 2018 Apr 4, 2018已经结束 ¥126
Minergate mobile app clone We are looking for expert crypto/mobile Developer for developing a cryptocurrency miner app based Monero (XMR). Basically the app should be almost a ="c l o n e" of Minergate mobile mining app but with a few extras and little customization. Check Minergate mobile app at: [链接已删除,请登录查看] The mobile app should support ISO & Android. If you have done similar mobile app, plea... 42 Mobile App Development, iPhone, 安卓, 密码学 Apr 4, 2018 Apr 4, 2018已经结束 ¥5512
i need freelancer developer we''re blockchain solution company in Malaysia looking for the freelance developer can worked together.. 11 密码学, Blockchain Apr 3, 2018 Apr 3, 2018已经结束 ¥1453
Build a Cryptocurrency Decentralized Exchange - Urgent..... - 02/04/2018 05:02 EDT Project : Build a function crypto exchange based on the template Please answer the screening questions 1-6. first. 1) Have you done a crypto exchange project before? 2) Can you show the demo? 3) Do you understand the structure & logic of importing liquidity? 4) Are you familiar with AWS? 5) You will need to proactively update us a very rough progress daily, can you do that? ... 7 Java, Python, 密码学, C++编程, Blockchain Apr 2, 2018 Apr 2, 2018已经结束 ¥665
Build a Cryptocurrency Decentralized Exchange - Urgent... Project : Build a function crypto exchange based on the template Please answer the screening questions 1-6. first. 1) Have you done a crypto exchange project before? 2) Can you show the demo? 3) Do you understand the structure & logic of importing liquidity? 4) Are you familiar with AWS? 5) You will need to proactively update us a very rough progress daily, can you do that? ... 5 Java, Python, 密码学, C++编程, Blockchain Apr 2, 2018 Apr 2, 2018已经结束 ¥2084
Project for Mudassar A. Hi Mudassar A., I noticed your profile and would like to offer you my project. We can discuss any details over chat. 2 网络安全, 计算机安全, 密码学, , 汇编, 网络安全 Apr 1, 2018 Apr 1, 2018已经结束 ¥107
Build me a platform for my own cryptocurrency I have an eCommerce and i am looking for a platform or programmers who can create a platform where i can sell with my own cryptocurrency. I would like to have this project finished in a period of 15-30 days. 34 PHP, 电子商务, 密码学, HTML, 编程 Apr 1, 2018 Apr 1, 2018已经结束 ¥16176
article publishing we are running website related to bitcoin and looking for article writers in our table format.. we have useful admin section,,,, so just need to find and submit each review we will give Rs.40 sample : [链接已删除,请登录查看] 5 Article Writing, 评论, 密码学, Bitcoin, Ethereum Mar 31, 2018 Mar 31, 2018已经结束 ¥98
Develop a Crypto Exchange & Trading Portal like IQ Option.com / Olymptrade.com I need to start a Crypto exchange and trading business and need someone to develop the platform for me. Examples are IQ [链接已删除,请登录查看] and Olymptrade.com. There will be many related features and functionalities on this trade portal, that I will discuss further. I need it to be developed on the PhP/Laravel framework. Security parameters should be given top priority. 31 网站设计, 软件构架, 密码学, Bitcoin, Laravel Mar 30, 2018 Mar 30, 2018已经结束 ¥95847
Cyber Security Authentication Project To prevent unauthorized users from accessing the 3G network and to maintain the confidentiality of 3G communication, the Third Generation Partnership Project (3GPP) has proposed a authentication and key agreement scheme which we name it 3GPP-AKA hereafter. It requires that mobile equipment (ME) pre- share a secret with its home network (HN). Before admitting ME to its network, a visited network (... 1 Javascript, Linux, 工程, 软件构架, 密码学 Mar 30, 2018 Mar 30, 2018已经结束 ¥752
Custom Analytics and Visualization Website with Cryptocurrency Looking for a expert regarding the best combination of front-end & back-end platforms for a website, which would allow users to perform custom queries and visualizations in the following scenario: - Website collects a large amount of time-series data from different sources (e.g., crypto, forex) and save them in a database. - Users of the website can access the database through an easy-to-use U... 9 平面设计, 密码学, Blockchain, Ethereum, Data Analytics Mar 29, 2018 Mar 29, 2018已经结束 ¥4612
Blockchain Trainer is Needed in Bangalore We are looking for experienced trainers who could deliver 2-5 days trainings on Blockchain and Cryptocurrency all over India. Trainer should be based in Bangalore or South India. Trainer should be willing to travel. Trainer should have experince of delivering workshops and corporate trainings on Blockchain and Cryptocurrency. Good Payouts and Travelling + Accommodation and food will be provided. O... 2 训练, 密码学, Bitcoin, Blockchain, Ethereum Mar 29, 2018 Mar 29, 2018已经结束 ¥99
Mining pool for several crypto currency Interested to receive an offer to build a mining pool for several cryptocurrency (litecoin, verge etc). Need a company who already made a similar project and not start from scratch. 10 密码学 Mar 28, 2018 Mar 28, 2018已经结束 ¥155
Legal & business professional who can join the board of Advisor role. Hi, Our blockchain project is near to complete and we are looking for legal & business professional who can join the board of Advisor role. Positions vacant for legal , professional or marketing team. Candidates will be selected on merit bases. The successful candidates will have a mutual agreement with company 10 法律, 市场, 密码学, 法律写作, Blog Writing Mar 28, 2018 Mar 28, 2018已经结束 ¥13452
Highly Skilled Cryptocurrency and ICO promoter needed Hello. First of all, I would like to introduce myself that I do work for different clients so keep in mind everyday task will be different but yes we will be on the crypto world so you must have to get good knowledge on Crypto and ICO marketplace even you should have some wallet account holder. By the way, your main task will be promoting ICO on forums blogs and other social media sites and yo... 10 市场, 论坛发贴, Article Writing, 密码学, Bitcoin Mar 28, 2018 Mar 28, 2018已经结束 ¥893
Develop a Crypto Exchange & Trading Platform I planned to launch a Crypto exchange and trading business and need someone to develop the platform for me. Examples are [链接已删除,请登录查看], [链接已删除,请登录查看], [链接已删除,请登录查看], [链接已删除,请登录查看], coinbase.com. There will be many different features and functionalities on this site, but I want to get the basics in place first. Will keep enhancing after that. I need it to be developed on the PhP/Laravel framework. 30 网站设计, 软件构架, 密码学, Bitcoin, Laravel Mar 27, 2018 Mar 27, 2018已经结束 ¥12826
linux-OpenSSL Crypto Lab Hello, I'm looking for someone can help me on cryptography lab. as soon as possible thank you 4 Linux, 密码学, 为网络通信提供安全及数据完整性的一种安全协议 Mar 26, 2018 Mar 26, 2018已经结束 ¥118
Create different cryptocurrencies Please bid to this project only if you have previous experience in making altcoins. We are looking to create a new cryptocurrency and need an experienced developer that can develop and update our coin and those of our customers. This should be very straightforward for someone with experience in C hence the size of the project. This project is nothing fancy, just taking the source code and chang... 29 C 编程, C# 编程, 密码学, C++编程, Bitcoin Mar 26, 2018 Mar 26, 2018已经结束 ¥11492
Cryptography for text file Looking for expert in cryptography to help to change e text file digitally signed. The file contain readable text in tab format and at the of file this the digital signature and Wherever i change any text or edit the file the system do not accept this file and I message that the file is not digitally signed. 2 密码学 Mar 25, 2018 Mar 25, 2018已经结束 ¥1233
Monero/Cryptonote Fork experience You MUST have good experience in Monero/Cryptonote code. This is an absolute MUST! This job is not to learn on the job, don't just bid you work with C++ I need a developer with firsthand experience in Monero or CryptoNote only. Note: We have a bug with minimum fees after changing money supply. For the right develoepr this should be a reasonable quick fix. If you do this well i will have mo... 12 密码学, C++编程, Blockchain Mar 25, 2018 Mar 25, 2018已经结束 ¥8236
Need a CRYPTOCURRENCY website hi we are looking for developer having good knowledge in cryptocurrency and block chain. we want a replica of the site [链接已删除,请登录查看] if you are interested please drop a msg. 5 密码学 Mar 24, 2018 Mar 24, 2018已经结束 ¥14299
ICO - Blockchain Developer Looking for blockchain developer to help with our ICO. Must be experienced with etherium blockchain. Please provide relevant experience. Project will be discussed in more detail via chat. 45 PHP, 密码学, C++编程, Blockchain, Ethereum Mar 23, 2018 Mar 23, 2018已经结束 ¥8330
Drive Real Crypto traffic to my website The Traffic you send must be specific, Must be NEW ICO/CRYPTO projects that want to get there ICO listed. so you must have a database or have access to all NEW ico projects. will be paid in milestones. 26 网络市场, SEO, 密码学, 社交媒体营销, 搜索引擎销售 Mar 22, 2018 Mar 22, 2018已经结束 ¥1413
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