《妖夜慌踪》与身份混淆：身份作为链上隐私的隐喻

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

import "@openzeppelin/contracts/access/Ownable.sol";

contract IdentityMixer is Ownable {
    struct Identity {
        bytes32 identityHash;
        address currentAddress;
        address[] previousAddresses;
        uint256 createdAt;
        uint256 lastUpdated;
        bool isActive;
    }
    
    struct IdentitySwap {
        bytes32 identityA;
        bytes32 identityB;
        uint256 timestamp;
        bool isCompleted;
        string swapReason;
    }
    
    mapping(bytes32 => Identity) public identities;
    mapping(address => bytes32) public addressToIdentity;
    mapping(uint256 => IdentitySwap) public swaps;
    
    uint256 public swapCount;
    uint256 public identityCount;
    
    event IdentityCreated(bytes32 indexed identityHash, address indexed address_);
    event IdentitySwapped(bytes32 indexed identityA, bytes32 indexed identityB, uint256 swapId);
    event AddressAdded(bytes32 indexed identityHash, address indexed newAddress);
    
    function createIdentity(address _address) external returns (bytes32) {
        bytes32 hash = keccak256(abi.encodePacked(_address, block.timestamp, msg.sender));
        
        identityCount++;
        identities[hash] = Identity({
            identityHash: hash,
            currentAddress: _address,
            previousAddresses: new address[](0),
            createdAt: block.timestamp,
            lastUpdated: block.timestamp,
            isActive: true
        });
        
        addressToIdentity[_address] = hash;
        
        emit IdentityCreated(hash, _address);
        return hash;
    }
    
    function swapIdentity(bytes32 _identityA, bytes32 _identityB, string memory _reason) external {
        Identity storage idA = identities[_identityA];
        Identity storage idB = identities[_identityB];
        
        require(idA.isActive && idB.isActive, "Identity not active");
        
        swapCount++;
        swaps[swapCount] = IdentitySwap({
            identityA: _identityA,
            identityB: _identityB,
            timestamp: block.timestamp,
            isCompleted: true,
            swapReason: _reason
        });
        
        // 交换地址
        address tempAddr = idA.currentAddress;
        idA.currentAddress = idB.currentAddress;
        idB.currentAddress = tempAddr;
        
        idA.previousAddresses.push(idA.currentAddress);
        idB.previousAddresses.push(idB.currentAddress);
        
        addressToIdentity[idA.currentAddress] = _identityA;
        addressToIdentity[idB.currentAddress] = _identityB;
        
        emit IdentitySwapped(_identityA, _identityB, swapCount);
    }
    
    function getIdentityHistory(bytes32 _identityHash)
        external view returns (address[] memory)
    {
        return identities[_identityHash].previousAddresses;
    }
    
    function resolveAddress(address _address) external view returns (bytes32) {
        return addressToIdentity[_address];
    }
}

import numpy as np
import networkx as nx
import matplotlib.pyplot as plt
from typing import Dict, List

class IdentityNetworkAnalyzer:
    def __init__(self):
        self.graph = nx.Graph()
        
    def build_identity_network(self, n_identities: int = 50):
        np.random.seed(42)
        
        for i in range(n_identities):
            self.graph.add_node(f'identity_{i}', 
                addresses=np.random.randint(1, 5),
                swaps=np.random.randint(0, 10))
        
        for i in range(n_identities):
            for j in range(i + 1, n_identities):
                if np.random.random() > 0.95:
                    self.graph.add_edge(f'identity_{i}', f'identity_{j}')
    
    def analyze_network(self) -> Dict:
        return {
            'nodes': self.graph.number_of_nodes(),
            'edges': self.graph.number_of_edges(),
            'components': nx.number_connected_components(self.graph),
            'avg_degree': np.mean([d for _, d in self.graph.degree()])
        }
    
    def generate_report(self) -> str:
        analysis = self.analyze_network()
        report = f"""
=== 身份网络分析 ===

节点数: {analysis['nodes']}
连接数: {analysis['edges']}
连通分量: {analysis['components']}
平均度数: {analysis['avg_degree']:.2f}
"""
        return report


if __name__ == "__main__":
    analyzer = IdentityNetworkAnalyzer()
    analyzer.build_identity_network(50)
    report = analyzer.generate_report()
    print(report)

class IdentityManager {
    constructor(providerUrl, contractAddress) {
        this.web3 = new Web3(providerUrl);
        this.contract = new this.web3.eth.Contract([], contractAddress);
    }
    
    async createIdentity(address) {
        return await this.contract.methods.createIdentity(address).send({ from: this.userAccount });
    }
    
    async swapIdentity(identityA, identityB, reason) {
        return await this.contract.methods.swapIdentity(identityA, identityB, reason).send({ from: this.userAccount });
    }
    
    async resolveAddress(address) {
        return await this.contract.methods.resolveAddress(address).call();
    }
}