Security Architecture

Multi-layered security with encryption, immutability, and cryptographic signing.

System Architecture

┌─────────────┐
│   Your App  │
└──────┬──────┘
       │ HTTPS/TLS 1.3
       ▼
┌─────────────────────┐
│   XASE API Gateway  │
│   (Rate limiting)   │
└──────┬──────────────┘
       │
       ▼
┌──────────────────────┐
│  Immutable Ledger    │
│  (WORM + Hash Chain) │
└──────┬───────────────┘
       │
       ▼
┌──────────────────────┐
│  AWS KMS Signing     │
│  (RSA-SHA256)        │
└──────────────────────┘

Security Layers

Transport: TLS 1.3 for all API calls
Storage: AES-256 encryption at rest
Immutability: WORM storage + SQL triggers prevent edits
Integrity: SHA-256 hash chains link records
Signatures: RSA-SHA256 via AWS KMS
Access Control: RBAC + API key scopes

All evidence bundles are verifiable offline without trusting XASE infrastructure.