# Security Documentation

**Bakery IA Platform - Consolidated Security Guides**

---

## Overview

This directory contains comprehensive, production-ready security documentation for the Bakery IA platform. Our infrastructure has been hardened from a **D- security grade to an A- grade** through systematic implementation of industry best practices.

### Security Achievement Summary

- **15 databases secured** (14 PostgreSQL + 1 Redis)
- **100% TLS encryption** for all database connections
- **Strong authentication** with 32-character cryptographic passwords
- **Data persistence** with PersistentVolumeClaims preventing data loss
- **Audit logging** enabled for all database operations
- **Compliance ready** for GDPR, PCI-DSS, and SOC 2

### Security Grade Improvement

| Metric | Before | After |
|--------|--------|-------|
| Overall Grade | D- | A- |
| Critical Issues | 4 | 0 |
| High-Risk Issues | 3 | 0 |
| Medium-Risk Issues | 4 | 0 |

---

## Documentation Guides

### 1. [Database Security Guide](./database-security.md)
**Complete guide to database security implementation**

Covers database inventory, authentication, encryption (transit & rest), data persistence, backups, audit logging, compliance status, and troubleshooting.

**Best for:** Understanding overall database security, troubleshooting database issues, backup procedures

### 2. [RBAC Implementation Guide](./rbac-implementation.md)
**Role-Based Access Control across all microservices**

Covers role hierarchy (4 roles), subscription tiers (3 tiers), service-by-service access matrix (250+ endpoints), implementation code examples, and testing strategies.

**Best for:** Implementing access control, understanding subscription limits, securing API endpoints

### 3. [TLS Configuration Guide](./tls-configuration.md)
**Detailed TLS/SSL setup and configuration**

Covers certificate infrastructure, PostgreSQL TLS setup, Redis TLS setup, client configuration, deployment procedures, verification, and certificate rotation.

**Best for:** Setting up TLS encryption, certificate management, diagnosing TLS connection issues

### 4. [Security Checklist](./security-checklist.md)
**Production deployment and verification checklist**

Covers pre-deployment prep, phased deployment (weeks 1-6), verification procedures, post-deployment tasks, maintenance schedules, and emergency procedures.

**Best for:** Production deployment, security audits, ongoing maintenance planning

## Quick Start

### For Developers

1. **Authentication**: All services use JWT tokens
2. **Authorization**: Use role decorators from `shared/auth/access_control.py`
3. **Database**: Connections automatically use TLS
4. **Secrets**: Never commit credentials - use Kubernetes secrets

### For Operations

1. **TLS Certificates**: Stored in `infrastructure/tls/`
2. **Backup Script**: `scripts/encrypted-backup.sh`
3. **Password Rotation**: `scripts/generate-passwords.sh`
4. **Monitoring**: Check audit logs regularly

## Compliance Status

| Requirement | Status |
|-------------|--------|
| GDPR Article 32 (Encryption) | ✅ COMPLIANT |
| PCI-DSS Req 3.4 (Transit Encryption) | ✅ COMPLIANT |
| PCI-DSS Req 3.5 (At-Rest Encryption) | ✅ COMPLIANT |
| PCI-DSS Req 10 (Audit Logging) | ✅ COMPLIANT |
| SOC 2 CC6.1 (Access Control) | ✅ COMPLIANT |
| SOC 2 CC6.6 (Transit Encryption) | ✅ COMPLIANT |
| SOC 2 CC6.7 (Rest Encryption) | ✅ COMPLIANT |

## Security Architecture

```
┌─────────────────────────────────────────────────────────────┐
│                      API GATEWAY                             │
│  - JWT validation                                            │
│  - Rate limiting                                             │
│  - TLS termination                                           │
└──────────────────────────────┬──────────────────────────────┘
                               │
                               ▼
┌─────────────────────────────────────────────────────────────┐
│                    SERVICE LAYER                             │
│  - Role-based access control (RBAC)                          │
│  - Tenant isolation                                          │
│  - Permission validation                                     │
│  - Audit logging                                             │
└──────────────────────────────┬──────────────────────────────┘
                               │
                               ▼
┌─────────────────────────────────────────────────────────────┐
│                   DATA LAYER                                 │
│  - TLS encrypted connections                                 │
│  - Strong authentication (scram-sha-256)                     │
│  - Encrypted secrets at rest                                 │
│  - Column-level encryption (pgcrypto)                        │
│  - Persistent volumes with backups                           │
└─────────────────────────────────────────────────────────────┘
```

## Critical Security Features

### Authentication
- JWT-based authentication across all services
- Service-to-service authentication with tokens
- Refresh token rotation
- Password hashing with bcrypt

### Authorization
- Hierarchical role system (Viewer → Member → Admin → Owner)
- Subscription tier-based feature gating
- Resource-level permissions
- Tenant isolation

### Data Protection
- TLS 1.2+ for all connections
- AES-256 encryption for secrets at rest
- pgcrypto for sensitive column encryption
- Encrypted backups with GPG

### Monitoring & Auditing
- Comprehensive PostgreSQL audit logging
- Connection/disconnection tracking
- SQL statement logging
- Failed authentication attempts

## Common Security Tasks

### Rotate Database Passwords

```bash
# Generate new passwords
./scripts/generate-passwords.sh

# Update environment files
./scripts/update-env-passwords.sh

# Update Kubernetes secrets
./scripts/update-k8s-secrets.sh
```

### Create Encrypted Backup

```bash
# Backup all databases
./scripts/encrypted-backup.sh

# Restore specific database
gpg --decrypt backup_file.sql.gz.gpg | gunzip | psql -U user -d database
```

### Regenerate TLS Certificates

```bash
# Regenerate all certificates (before expiry)
cd infrastructure/tls
./generate-certificates.sh

# Update Kubernetes secrets
./scripts/create-tls-secrets.sh
```

## Security Best Practices

### For Developers

1. **Never hardcode credentials** - Use environment variables
2. **Always use role decorators** on sensitive endpoints
3. **Validate input** - Prevent SQL injection and XSS
4. **Log security events** - Failed auth, permission denied
5. **Use parameterized queries** - Never concatenate SQL
6. **Implement rate limiting** - Prevent brute force attacks

### For Operations

1. **Rotate passwords regularly** - Every 90 days
2. **Monitor audit logs** - Check for suspicious activity
3. **Keep certificates current** - Renew before expiry
4. **Test backups** - Verify restoration procedures
5. **Update dependencies** - Apply security patches
6. **Review access** - Remove unused accounts

## Incident Response

### Security Incident Checklist

1. **Identify** the scope and impact
2. **Contain** the threat (disable compromised accounts)
3. **Eradicate** the vulnerability
4. **Recover** affected systems
5. **Document** the incident
6. **Review** and improve security measures

### Emergency Contacts

- Security incidents should be reported immediately
- Check audit logs: `/var/log/postgresql/` in database pods
- Review application logs for suspicious patterns

## Additional Resources

### Consolidated Security Guides
- [Database Security Guide](./database-security.md) - Complete database security
- [RBAC Implementation Guide](./rbac-implementation.md) - Access control
- [TLS Configuration Guide](./tls-configuration.md) - TLS/SSL setup
- [Security Checklist](./security-checklist.md) - Deployment verification

### Source Analysis Reports
These detailed reports were used to create the consolidated guides above:
- [Database Security Analysis Report](../archive/DATABASE_SECURITY_ANALYSIS_REPORT.md) - Original security analysis
- [Security Implementation Complete](../archive/SECURITY_IMPLEMENTATION_COMPLETE.md) - Implementation summary
- [RBAC Analysis Report](../archive/RBAC_ANALYSIS_REPORT.md) - Access control analysis
- [TLS Implementation Complete](../archive/TLS_IMPLEMENTATION_COMPLETE.md) - TLS implementation

### Platform Documentation
- [System Overview](../02-architecture/system-overview.md) - Platform architecture
- [AI Insights API](../08-api-reference/ai-insights-api.md) - Technical API details
- [Testing Guide](../04-development/testing-guide.md) - Testing strategies

---

## Document Maintenance

**Last Updated**: November 2025
**Version**: 1.0
**Next Review**: May 2026
**Review Cycle**: Every 6 months
**Maintained by**: Security Team

---

## Support

For security questions or issues:

1. **First**: Check the relevant guide in this directory
2. **Then**: Review source reports in the `docs/` directory
3. **Finally**: Contact Security Team or DevOps Team

**For security incidents**: Follow incident response procedures immediately.