EthzkSNARK-Voting | Secure E-Voting framework | Blockchain library
kandi X-RAY | EthzkSNARK-Voting Summary
kandi X-RAY | EthzkSNARK-Voting Summary
Voting is the representation of democracy in a country, to select a person for parliament, approve a bill in a parliament and decision making in board meetings etc. Voting systems have been around of hundreds of years and but they were evolving very slowly. Many solutions were proposed in the history, but most of them were rejected because of some security issues and limitations. Finally at the 21th century, evoting systems started to bloom with the development of the web technologies. With the development of the blockchain 2.0, the researchers started to go towards a new destination by applying blockchain to software engineering applications. E-voting systems were developed based on Ethereum as well as Zcash and bitcoin. But they were not full e-voting frameworks. Due to the limitations of proposed solution, those were unable to exist with the modern world. In order to prove feasibility of developing a secure e-voting system by combining some concepts of Zcash with the ethereum platform, this research is about to implement a full e-voting framework with voter registration, voter verification, voting, tallying and end to end verification etc. To maintain the user privacy, zk-SNARK which is a concept used in Zcash for maintaining private transactions, was used. To write Immutable codes, a concept called smart contract which is used in ethereum, was used. Due to the experiment and testing we done, it is very clear that this system is practical solution and works fine by protecting voter privacy.
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Trending Discussions on Blockchain
QUESTION
I am new to blockchain app development, I saw a project where ganache accounts are imported into Metamask, then web3.js is used to access and print those accounts and balances on Frontend (user interface).
If web3.js can directly access ganache blockchain accounts and balances, why do we need Metamask in between?
...ANSWER
Answered 2022-Feb-08 at 09:11If web3.js can directly acccess ganache blockchain accounts and balances, why we need metamask in between?
In this case, you don't need MetaMask to sign the transaction, as the node (Ganache) holds your private key.
But in a public environment (testnets and mainnet), the node doesn't hold your private key, so you'd need to sign the transaction using MetaMask (or any other tool that holds the private key).
QUESTION
I tried https://docs.opensea.io/reference opensea.io docs to fetch data. However, I think there are 2 APIs.
...ANSWER
Answered 2021-Aug-04 at 15:03The assets
endpoint (docs) has the asset_contract_address
filter that allows you to filter by a contract address. Which will effectively allow you to paginate through all NFTs of the contract (that Opensea knows of).
Example:
QUESTION
I want to publish files on ipfs but it's showing me an error.
Here is my code...
...ANSWER
Answered 2021-Nov-11 at 04:27I am not familiar with ipfs but i checked the official docs and they have done the first line like this:
QUESTION
I have been trying to interact with a contract on the AVAX chain using web3js and it keeps throwing the error, "TypeError: Cannot read properties of undefined (reading 'send')". I cannot figure out why this is happening, as it should be a valid statement. If anyone can help that would be awesome.
...ANSWER
Answered 2022-Mar-19 at 17:10The ABI needs to contain just the function and event definitions that are stored in your result
property. Without the wrapper object containing status
and other properties.
So in your case
QUESTION
I've been using the testnet lately and I encounter issues: they reset it very often and the service is down for multiple hours and sometimes have bugs.
Should I use the devnet? From what I've understood it's more stable and they reset it less often?
I have a backend in js that uses the elrond-sdk-erdjs and I'm confused because there is no function that initializes the https://devnet-gateway.elrond.com only the testnet. Is there a reason?
...ANSWER
Answered 2021-Aug-24 at 12:56The testnet is pretty volatile and it is reset very often (maybe weekly), without any warnings. Elrond recommends developers to use the devnet, it is reset maybe once every 3-4 months, so it's more stable.
You can get the provider like this:
QUESTION
Hey guys I am trying to deploy my project on the rinkeby chain using infura, but I am getting a ValueError Here is my trackback:
...ANSWER
Answered 2021-Nov-28 at 10:14it appears your env variables are not set correctly, and it looks like in this case it's your WEB3_INFURA_PROJECT_ID.
You can fix it by setting the variable in your .env file and adding dotenv: .env to your brownie-config.yaml.
brownie-config.yaml:
dotenv: .env .env:
export WEB3_INFURA_PROJECT_ID=YOUR_PROJECT_ID_HERE Remember to save these files.
Additionally, you should be on at least brownie version v1.14.6. You can find out what version you're on with:
brownie --version
QUESTION
I am very new to blockchain programming and programming in general. I want to generate my SOL address using the mnemonic seed phrase with the derivation path "m/44'/501'/0'/0". I can't find a proper BIP44 module for python where you can specify the derivation path.
...ANSWER
Answered 2022-Feb-23 at 00:41After a long search through the internet, I have finally found a way of solving my problem that I want to share with you.
QUESTION
ANSWER
Answered 2021-Oct-18 at 02:20I had the same issue but then I installed with npm and it worked
QUESTION
enter image description hereI've installed latest version of visual studio with desktop development c++ workload but still they are asking for it when i try to install truffle. I entered command :npm install -g truffle and lot of messages appear after 2 to 3 minutes of some kind of installation process. they are asking for Latest version of Visual Studio with "Desktop development with c++ workload" whereas i just installed my Visual studio with the same requirements. node.js and ganache are already installed. Is there any other way to install truffle?
...ANSWER
Answered 2022-Feb-17 at 16:59If you are installing it using npm package manager. Downgrade your npm to 7.24.2 it worked for me I hope it will also work for you. Use the following command to downgrade npm
QUESTION
I'm trying to swap tokens on uniswap unsing hardhat's mainnet fork but I'm getting this error: Error: Transaction reverted without a reason string
. And I don't really know why.
Here is my swap function:
...ANSWER
Answered 2022-Feb-17 at 06:46Weth
is different from other token, you're not able to use swapTokensForTokens
. We must use the swapEthForTokens
function instead, and you have to declare the data option separately.
so in your case we need to do:
Solidity code:
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