# security - Functional Specification

**Version**: v1.0.0 | **Status**: Active | **Last Updated**: February 2026

## Purpose

Provides comprehensive security capabilities organized into four specialized submodules covering physical, digital, cognitive, and theoretical security aspects.

## Design Principles

- **Comprehensive Coverage**: Address all aspects of security (physical, digital, cognitive, theoretical)
- **Modular Design**: Separate concerns into specialized submodules
- **Risk-Based Approach**: Prioritize security measures based on risk assessment
- **Continuous Monitoring**: Monitor security events and threats continuously
- **Framework Alignment**: Align with established security frameworks and standards

## Functional Requirements

### Physical Security

1. **Access Control**: Manage physical access permissions
2. **Asset Inventory**: Track physical assets
3. **Surveillance**: Monitor physical access events
4. **Vulnerability Assessment**: Assess physical security vulnerabilities
5. **Perimeter Management**: Manage security perimeter

### Digital Security Requirements

1. **Vulnerability Scanning**: Scan for security vulnerabilities
2. **Code Security Analysis**: Analyze code for security issues
3. **Secrets Detection**: Detect exposed secrets and sensitive data
4. **Encryption Management**: Handle encryption of sensitive data
5. **Certificate Validation**: Validate SSL/TLS certificates
6. **Compliance Checking**: Verify compliance with security standards
7. **Security Monitoring**: Monitor security events
8. **Security Reporting**: Generate security assessment reports

### Cognitive Security Requirements

1. **Social Engineering Detection**: Detect social engineering attempts
2. **Phishing Analysis**: Analyze emails and communications for phishing
3. **Awareness Training**: Provide security awareness training
4. **Cognitive Threat Assessment**: Assess cognitive security threats
5. **Behavior Analysis**: Analyze user behavior for security

### Theory & Governance Requirements

1. **Security Principles**: Apply security principles
2. **Security Frameworks**: Use established security frameworks
3. **Threat Modeling**: Perform threat modeling
4. **Risk Assessment**: Conduct risk assessments
5. **Architecture Patterns**: Apply security architecture patterns
6. **Best Practices**: Follow security best practices
7. **Security Governance**: Policy management, compliance tracking, and security posture reporting.

## Interface Contracts

### Digital Security (`security.digital`)

```python
class VulnerabilityScanner:
    def scan_path(self, path: str) -> SecurityScanResult
    def scan_environment(self) -> SecurityScanResult

class SecretsDetector:
    def scan_file(self, path: str) -> List[SecurityFinding]
    def scan_directory(self, path: str) -> List[SecurityFinding]

class SecurityAnalyzer:
    def analyze_code_security(self, path: str) -> List[SecurityIssue]
```

### Theory & Governance (`security.theory`, `security.governance`)

```python
class ThreatModel:
    def create_model(self, system_name: str, assets: List[str], attack_surface: List[str]) -> ThreatModel
    def analyze_threats(self) -> Dict[str, Any]

class PolicyEngine:
    def add_policy(self, policy: Policy) -> None
    def enforce(self, context: Dict[str, Any]) -> None

class Contract:
    def sign(self, signer_id: str, digital_signature: str = "") -> None
    def terminate(self) -> None
```

### Physical & Cognitive Security (`security.physical`, `security.cognitive`)

```python
class AccessControlSystem:
    def check_access_permission(self, user_id: str, resource_id: str) -> bool
    def grant_access(self, user_id: str, resource_id: str) -> None

class PhishingAnalyzer:
    def analyze_email(self, content: str) -> Dict[str, Any]
```

## Navigation

- **Human Documentation**: [README.md](README.md)
- **Technical Documentation**: [AGENTS.md](AGENTS.md)
- **Parent**: [../SPEC.md](../SPEC.md)

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## Testing

```bash
uv run python -m pytest src/codomyrmex/tests/ -k security -v
```
