Security Architecture - pratchaya-maneechot/service-exchange GitHub Wiki

Security Architecture

Authentication & Authorization

JWT-based Authentication

  • Access Tokens: Short-lived (15 minutes)
  • Refresh Tokens: Longer-lived (7 days)
  • Token Rotation: Automatic refresh mechanism
{
  "access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "refresh_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "token_type": "Bearer",
  "expires_in": 900
}

Service-to-Service Authentication

  • mTLS: Mutual TLS for service mesh communication
  • API Keys: External integrations
  • Service Accounts: Minimal required permissions

Data Protection

Encryption

  • Data at Rest: AES-256 encryption
  • Data in Transit: TLS 1.3
  • PII Fields: Field-level encryption for sensitive data

Privacy Compliance

  • GDPR Compliance: Right to access, portability, erasure
  • Data Retention: Automated cleanup policies
  • Audit Logging: All data access tracked

Security Headers & Policies

Content-Security-Policy: default-src 'self'
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000; includeSubDomains
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