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Privacy Features

The Trunk network implements robust privacy features to protect user data and network operations.

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Privacy Overview

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Core Privacy Features

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1. End-to-End Encryption

All network communications are encrypted:

interface EncryptedMessage {
  payload: string;      // Encrypted data
  iv: string;          // Initialization vector
  ephemeralKey: string; // One-time key
  signature: string;    // Message signature
}

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2. Zero Knowledge Proofs

Validate transactions without revealing data:

class ZKProof {
  async generateProof(data, statement) {
    // Generate zero knowledge proof
    return {
      proof: bytes,
      publicInputs: array,
      verification: function
    };
  }
}

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Privacy Protocols

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1. Data Anonymization

class DataAnonymizer {
  static anonymize(data) {
    return {
      hash: this.hashData(data),
      merkleProof: this.generateMerkleProof(data),
      timestamp: Date.now()
    };
  }
}

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2. Secure Enclaves

Protected execution environments:

class SecureEnclave {
  constructor() {
    this.state = 'sealed';
    this.attestation = null;
  }

  async process(data) {
    // Process data in secure environment
    return {
      result: processedData,
      proof: attestation
    };
  }
}

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Privacy Levels

The network supports multiple privacy levels:

LevelDescriptionUse Case
PublicBasic encryptionGeneral transactions
PrivateFull privacySensitive data
CustomConfigurableSpecific needs

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Implementation

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1. Basic Privacy Setup

import { TrunkPrivacy } from '@trunk/privacy';

const privacy = new TrunkPrivacy({
  mode: 'strict',
  features: ['zk-proofs', 'encryption', 'anonymization']
});

// Configure privacy settings
privacy.configure({
  encryption: {
    algorithm: 'AES-256-GCM',
    keyRotation: '24h'
  },
  anonymization: {
    level: 'maximum',
    preserveFields: ['timestamp']
  }
});

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2. Privacy Middleware

const privacyMiddleware = {
  incoming: async (data) => {
    // Decrypt and verify
    return await privacy.processIncoming(data);
  },
  outgoing: async (data) => {
    // Encrypt and sign
    return await privacy.processOutgoing(data);
  }
};

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Security Measures

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1. Key Management

class KeyManager {
  async rotateKeys() {
    const newKeys = await this.generateKeyPair();
    await this.distributeKeys(newKeys);
    return {
      status: 'rotated',
      nextRotation: Date.now() + 86400000
    };
  }
}

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2. Audit Logging

Secure, privacy-preserving logs:

class AuditLog {
  log(event) {
    return {
      hash: this.hashEvent(event),
      timestamp: Date.now(),
      proof: this.generateProof(event)
    };
  }
}

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Best Practices

  1. Data Handling

    • Minimize data collection
    • Implement data expiry
    • Use secure deletion

  2. Network Security

    • Regular security audits
    • Penetration testing
    • Vulnerability scanning

  3. Compliance

    • GDPR compliance
    • Data sovereignty
    • Regulatory reporting

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Privacy Configuration

Example configuration:

const privacyConfig = {
  encryption: {
    algorithm: 'AES-256-GCM',
    keyRotation: 86400, // 24 hours
    backup: true
  },
  anonymization: {
    mode: 'strict',
    preserveFields: ['timestamp', 'type'],
    saltRotation: 3600 // 1 hour
  },
  zkProofs: {
    enabled: true,
    protocol: 'groth16',
    verification: 'immediate'
  }
};

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Next Steps