wifi-densepose/npm/packages/ruvbot/docs/adr/ADR-008-security-architecture.md

ADR-008: Security Architecture

Status

Accepted

Date

2026-01-27

Context

RuvBot handles sensitive data including:

• User conversations and personal information
• API credentials for LLM providers
• Integration tokens (Slack, Discord)
• Vector embeddings that may encode sensitive content
• Multi-tenant data requiring strict isolation

Decision

Security Layers

┌─────────────────────────────────────────────────────────────────┐
│                     Security Architecture                        │
├─────────────────────────────────────────────────────────────────┤
│ Layer 1: Transport Security                                     │
│   - TLS 1.3 for all connections                                 │
│   - Certificate pinning for external APIs                       │
│   - HSTS enabled by default                                     │
├─────────────────────────────────────────────────────────────────┤
│ Layer 2: Authentication                                         │
│   - JWT tokens with RS256 signing                               │
│   - OAuth 2.0 for Slack/Discord                                 │
│   - API key authentication with rate limiting                   │
│   - Session tokens with secure rotation                         │
├─────────────────────────────────────────────────────────────────┤
│ Layer 3: Authorization                                          │
│   - RBAC with claims-based permissions                          │
│   - Tenant isolation at all layers                              │
│   - Skill-level permission grants                               │
│   - Resource-based access control                               │
├─────────────────────────────────────────────────────────────────┤
│ Layer 4: Data Protection                                        │
│   - AES-256-GCM for data at rest                               │
│   - Field-level encryption for sensitive data                   │
│   - Key rotation with envelope encryption                       │
│   - Secure secret management                                    │
├─────────────────────────────────────────────────────────────────┤
│ Layer 5: Input Validation                                       │
│   - Zod schema validation for all inputs                        │
│   - SQL injection prevention (parameterized queries)            │
│   - XSS prevention (content sanitization)                       │
│   - Path traversal prevention                                   │
├─────────────────────────────────────────────────────────────────┤
│ Layer 6: WASM Sandbox                                           │
│   - Memory isolation per operation                              │
│   - Resource limits (CPU, memory)                               │
│   - No filesystem access from WASM                              │
│   - Controlled imports/exports                                  │
└─────────────────────────────────────────────────────────────────┘

Multi-Tenancy Security

-- PostgreSQL Row-Level Security
CREATE POLICY tenant_isolation ON memories
  USING (tenant_id = current_setting('app.current_tenant')::uuid);

CREATE POLICY tenant_isolation ON sessions
  USING (tenant_id = current_setting('app.current_tenant')::uuid);

CREATE POLICY tenant_isolation ON agents
  USING (tenant_id = current_setting('app.current_tenant')::uuid);

Secret Management

// Secrets are never logged or exposed
interface SecretStore {
  get(key: string): Promise<string>;
  set(key: string, value: string, options?: SecretOptions): Promise<void>;
  rotate(key: string): Promise<void>;
  delete(key: string): Promise<void>;
}

// Environment variable validation
const requiredSecrets = z.object({
  ANTHROPIC_API_KEY: z.string().startsWith('sk-ant-'),
  SLACK_BOT_TOKEN: z.string().startsWith('xoxb-').optional(),
  DATABASE_URL: z.string().url().optional(),
});

API Security

1. Rate Limiting: Per-tenant, per-endpoint limits
2. Request Signing: HMAC-SHA256 for webhooks
3. IP Allowlisting: Optional for enterprise
4. Audit Logging: All security events logged

Vulnerability Prevention

CVE Category	Prevention
Injection (SQL, NoSQL, Command)	Parameterized queries, input validation
XSS	Content-Security-Policy, output encoding
CSRF	SameSite cookies, origin validation
SSRF	URL allowlisting, no user-controlled URLs
Path Traversal	Path sanitization, chroot for file ops
Sensitive Data Exposure	Encryption, minimal logging
Broken Authentication	Secure session management
Security Misconfiguration	Secure defaults, hardening guide

Compliance Readiness

• GDPR: Data export, deletion, consent tracking
• SOC 2: Audit logging, access controls
• HIPAA: Encryption, access logging (with configuration)

Consequences

Positive

• Defense in depth provides multiple security layers
• Multi-tenancy isolation prevents data leakage
• Comprehensive input validation blocks injection attacks
• WASM sandbox limits damage from malicious code

Negative

• Performance overhead from encryption/validation
• Complexity in secret management
• Additional testing required for security features

Risks

• Key management complexity
• Potential for misconfiguration
• Balance between security and usability

Security Checklist

• TLS configured for all endpoints
• API keys stored in secure vault
• Rate limiting enabled
• Audit logging configured
• Input validation on all endpoints
• SQL injection tests passing
• XSS tests passing
• CSRF protection enabled
• Security headers configured
• Dependency vulnerabilities scanned