This document outlines security features implemented in Longbow.

• No authentication mechanism implemented
• No authorization layer
• APIs are open by default

1. Input Validation

   • Validate all gRPC messages
   • Sanitize input parameters
   • Implement request size limits

2. Authentication Methods

   • API Key authentication
   • TLS/mTLS support
   • JWT token validation (optional)

3. Authorization Framework

   • RBAC (Role-Based Access Control)
   • Namespace-level permissions
   • Operation-level permissions

// Security audit log entry
type AuditEntry struct {
    Timestamp   time.Time
    UserID      string
    Operation   string
    Resource    string
    IPAddress   string
    Success     bool
    Reason      string
}

// Validate and sanitize input parameters
func ValidateInput(input string) error {
    // Length checks
    // Character validation
    // SQL injection prevention
    // Path traversal protection
}

• Dependency vulnerability scanning
• Container image scanning
• Static code analysis
• Security testing in CI pipeline

• Failed authentication attempts
• Suspicious activity detection
• Rate limiting per client
• Anomaly detection

1. Secure by Default

   • All APIs require authentication
   • Minimal permissions by default
   • Secure configurations

2. Defense in Depth

   • Multiple security layers
   • Fail-safe defaults
   • Comprehensive logging

3. Least Privilege

   • Minimal required permissions
   • Namespace isolation
   • Resource-specific access