区块链 2025-01

区块链投票平台

去中心化的安全投票系统，确保选举公平性和结果不可篡改

区块链投票平台

项目概述

基于区块链技术的去中心化安全投票系统，确保选举公平性和结果不可篡改，为政府、企业和组织提供可信赖的投票解决方案。

系统特性

安全性保障

透明性

易用性

技术架构

区块链层

后端服务

前端应用

核心功能

投票管理

安全机制

结果统计

智能合约设计

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract VotingSystem {
    struct Voter {
        bool registered;
        bool voted;
        uint vote;
        uint weight;
    }

    struct Proposal {
        string name;
        uint voteCount;
    }

    address public chairperson;
    mapping(address => Voter) public voters;
    Proposal[] public proposals;

    constructor(string[] memory proposalNames) {
        chairperson = msg.sender;
        voters[chairperson].weight = 1;

        for (uint i = 0; i < proposalNames.length; i++) {
            proposals.push(Proposal({
                name: proposalNames[i],
                voteCount: 0
            }));
        }
    }

    function register(address voter) public {
        require(msg.sender == chairperson, "Only chairperson can register voters");
        require(!voters[voter].registered, "Voter already registered");

        voters[voter].registered = true;
        voters[voter].weight = 1;
    }

    function vote(uint proposal) public {
        Voter storage sender = voters[msg.sender];
        require(sender.weight != 0, "Has no right to vote");
        require(!sender.voted, "Already voted");
        require(proposal < proposals.length, "Invalid proposal");

        sender.voted = true;
        sender.vote = proposal;
        proposals[proposal].voteCount += sender.weight;
    }

    function winningProposal() public view returns (uint winningProposal_) {
        uint winningVoteCount = 0;
        for (uint p = 0; p < proposals.length; p++) {
            if (proposals[p].voteCount > winningVoteCount) {
                winningVoteCount = proposals[p].voteCount;
                winningProposal_ = p;
            }
        }
    }

    function winnerName() public view returns (string memory winnerName_) {
        winnerName_ = proposals[winningProposal()].name;
    }
}

项目成果

技术亮点

  1. 区块链集成: 成功将区块链技术应用于实际选举场景
  2. 隐私保护: 零知识证明确保选民隐私不泄露
  3. 智能合约: 自动执行投票规则，无需人工干预
  4. 跨平台: 统一代码库支持多平台部署

应用场景

未来发展