# Security Audit - API Specification

## Introduction

This API specification documents the programmatic interfaces for the Security Audit module of Codomyrmex. The module provides comprehensive security analysis, vulnerability scanning, compliance checking, and security monitoring capabilities for the Codomyrmex ecosystem.

## Functions

### Function: `scan_vulnerabilities(target_path: str, scan_types: List[str] = None, **kwargs) -> VulnerabilityReport`

- **Description**: Scan for security vulnerabilities in code, dependencies, and configurations.
- **Parameters**:
    - `target_path`: Path to scan (file, directory, or package manifest).
    - `scan_types`: Types of scans (dependency, code, config, container).
    - `**kwargs`: Scan configuration (severity_threshold, include_dev_deps, etc.).
- **Return Value**: Comprehensive vulnerability report with findings and recommendations.
- **Errors**: Raises `SecurityScanError` for scanning failures.

### Function: `audit_code_security(code_path: str, audit_rules: List[str] = None, **kwargs) -> SecurityScanResult`

- **Description**: Perform comprehensive security audit of source code.
- **Parameters**:
    - `code_path`: Path to source code directory or files.
    - `audit_rules`: Specific security rules to check.
    - `**kwargs`: Audit configuration (languages, exclude_patterns, etc.).
- **Return Value**: Detailed security scan results with identified issues.
- **Errors**: Raises `SecurityAuditError` for audit execution failures.

### Function: `check_compliance(target: str, standards: List[str], **kwargs) -> ComplianceCheck`

- **Description**: Verify compliance with security standards and policies.
- **Parameters**:
    - `target`: Target to check (code, config, infrastructure).
    - `standards`: Compliance standards (OWASP, NIST, CIS, etc.).
    - `**kwargs`: Compliance check options.
- **Return Value**: Compliance assessment with pass/fail status and recommendations.
- **Errors**: Raises `ComplianceError` for compliance checking failures.

### Function: `monitor_security_events(event_types: List[str] = None, **kwargs) -> SecurityMonitor`

- **Description**: Monitor security events and alerts in real-time.
- **Parameters**:
    - `event_types`: Types of events to monitor (access, auth, data, etc.).
    - `**kwargs`: Monitoring configuration (alert_thresholds, log_level, etc.).
- **Return Value**: Security monitor instance with event streaming capabilities.
- **Errors**: Raises `MonitoringError` for monitoring setup failures.

### Function: `generate_security_report(scan_results: List, report_format: str = "html", **kwargs) -> Dict`

- **Description**: Generate comprehensive security assessment reports.

### Function: `audit_secrets_exposure(content: str, filepath: Optional[str] = None) -> List[Dict[str, Any]]`

- **Description**: Analyze text content for potential secrets exposure using pattern matching and entropy analysis.
- **Parameters**:
    - `content`: Text content to analyze
    - `filepath`: Optional file path for context
- **Return Value**: List of potential secret exposures with confidence scores and recommendations
- **Errors**: None (returns empty list on failure)

### Function: `scan_file_for_secrets(filepath: str) -> List[Dict[str, Any]]`

- **Description**: Scan a single file for potential secrets exposure.
- **Parameters**:
    - `filepath`: Path to file to scan
- **Return Value**: List of potential secret exposures found in the file
- **Errors**: Returns empty list if file cannot be read

### Function: `scan_directory_for_secrets(directory: str, recursive: bool = True) -> List[Dict[str, Any]]`

- **Description**: Scan a directory for potential secrets exposure.
- **Parameters**:
    - `directory`: Directory path to scan
    - `recursive`: Whether to scan subdirectories (default: True)
- **Return Value**: List of all potential secret exposures found
- **Errors**: Returns empty list if directory cannot be accessed

### Function: `analyze_file_security(filepath: str) -> List[SecurityFinding]`

- **Description**: Analyze a file for security vulnerabilities using AST and pattern matching.
- **Parameters**:
    - `filepath`: Path to file to analyze
- **Return Value**: List of security findings with severity, confidence, and recommendations
- **Errors**: Returns empty list if file cannot be analyzed

### Function: `analyze_directory_security(directory: str, recursive: bool = True) -> List[SecurityFinding]`

- **Description**: Analyze all files in a directory for security vulnerabilities.
- **Parameters**:
    - `directory`: Directory path to analyze
    - `recursive`: Whether to analyze subdirectories (default: True)
- **Return Value**: List of all security findings across all analyzed files
- **Errors**: Returns empty list if directory cannot be accessed

### Function: `check_compliance(target_path: str, standards: Optional[List[str]] = None) -> List[ComplianceCheckResult]`

- **Description**: Perform comprehensive compliance checking against multiple security standards.
- **Parameters**:
    - `target_path`: Path to codebase or configuration to check
    - `standards`: List of compliance standards to check against
- **Return Value**: List of compliance check results with status, evidence, and remediation
- **Errors**: Returns results with error status for failed checks

## Classes

### Class: `SecretsDetector`

- **Description**: Advanced secrets detection and analysis system.
- **Methods**:
    - `__init__(config_path: Optional[str] = None)`: Initialize detector with configuration
    - `audit_secrets_exposure(content: str, filepath: Optional[str] = None) -> List[Dict[str, Any]]`: Analyze content for secrets
    - `scan_file(filepath: str) -> List[Dict[str, Any]]`: Scan single file
    - `scan_directory(directory: str, recursive: bool = True) -> List[Dict[str, Any]]`: Scan directory

### Class: `SecurityAnalyzer`

- **Description**: Advanced security analyzer using AST and pattern matching.
- **Methods**:
    - `__init__()`: Initialize analyzer
    - `analyze_file(filepath: str) -> List[SecurityFinding]`: Analyze single file
    - `analyze_directory(directory: str, recursive: bool = True) -> List[SecurityFinding]`: Analyze directory

### Class: `ComplianceChecker`

- **Description**: Comprehensive compliance checker against multiple security standards.
- **Methods**:
    - `__init__(standards: Optional[List[str]] = None)`: Initialize with compliance standards
    - `check_compliance(target_path: str, standards: Optional[List[str]] = None) -> List[ComplianceCheckResult]`: Perform compliance checking

### Class: `ExecutionLimits`

- **Description**: Dataclass for configuring resource limits (belongs to code_execution_sandbox module).
- **Attributes**:
    - `time_limit`: Maximum execution time in seconds
    - `memory_limit`: Memory limit in MB
    - `cpu_limit`: CPU cores limit
    - `max_output_chars`: Maximum output characters

### Class: `ResourceMonitor`

- **Description**: Monitors resource usage during execution (belongs to code_execution_sandbox module).
- **Methods**:
    - `start_monitoring()`: Begin monitoring
    - `update_monitoring()`: Update usage metrics
    - `get_resource_usage()`: Get comprehensive usage statistics

## Data Models
- **Parameters**:
    - `scan_results`: Results from security scans and audits.
    - `report_format`: Output format (html, pdf, json, xml).
    - `**kwargs`: Report generation options (template, branding, etc.).
- **Return Value**:
    ```python
    {
        "report_path": <str>,
        "report_format": <str>,
        "generated_at": <timestamp>,
        "summary": {
            "total_findings": <int>,
            "critical_issues": <int>,
            "high_issues": <int>,
            "medium_issues": <int>,
            "low_issues": <int>
        },
        "recommendations": [<list_of_security_recommendations>]
    }
    ```
- **Errors**: Raises `ReportGenerationError` for report creation failures.

### Function: `encrypt_sensitive_data(data: str, encryption_type: str = "aes256", **kwargs) -> Dict`

- **Description**: Encrypt sensitive data using approved cryptographic algorithms.
- **Parameters**:
    - `data`: Data to encrypt.
    - `encryption_type`: Encryption algorithm (aes256, rsa, etc.).
    - `**kwargs`: Encryption options (key_rotation, salt, etc.).
- **Return Value**:
    ```python
    {
        "encrypted_data": <str>,
        "encryption_method": <str>,
        "key_fingerprint": <str>,
        "created_at": <timestamp>,
        "integrity_hash": <str>
    }
    ```
- **Errors**: Raises `EncryptionError` for encryption failures.

### Function: `decrypt_sensitive_data(encrypted_data: str, decryption_key: str, **kwargs) -> str`

- **Description**: Decrypt previously encrypted sensitive data.
- **Parameters**:
    - `encrypted_data`: Data to decrypt.
    - `decryption_key`: Decryption key or key identifier.
    - `**kwargs`: Decryption options.
- **Return Value**: Decrypted plaintext data.
- **Errors**: Raises `DecryptionError` for decryption failures.

### Function: `validate_ssl_certificates(hostname: str, port: int = 443, **kwargs) -> SSLValidationResult`

- **Description**: Validate SSL/TLS certificates for security and compliance.
- **Parameters**:
    - `hostname`: Hostname to validate certificate for.
    - `port`: Port number (default: 443 for HTTPS).
    - `**kwargs`: Validation options (check_revocation, verify_chain, etc.).
- **Return Value**: SSL certificate validation results with security assessment.
- **Errors**: Raises `CertificateError` for validation failures.

### Function: `audit_access_logs(log_path: str, audit_rules: Dict = None, **kwargs) -> Dict`

- **Description**: Audit access logs for security incidents and compliance.
- **Parameters**:
    - `log_path`: Path to access log files.
    - `audit_rules`: Custom audit rules for log analysis.
    - `**kwargs`: Audit options (time_range, filters, etc.).
- **Return Value**:
    ```python
    {
        "audit_summary": {
            "total_events": <int>,
            "suspicious_events": <int>,
            "policy_violations": <int>,
            "compliance_score": <float>
        },
        "findings": [<list_of_audit_findings>],
        "recommendations": [<list_of_security_recommendations>]
    }
    ```
- **Errors**: Raises `AuditError` for log analysis failures.

## Data Structures

### VulnerabilityReport
Comprehensive vulnerability assessment results:
```python
{
    "scan_id": <str>,
    "target": <str>,
    "scan_timestamp": <timestamp>,
    "duration_seconds": <float>,
    "vulnerabilities": [
        {
            "cve_id": <str>,
            "severity": "critical|high|medium|low",
            "package": <str>,
            "version": <str>,
            "fixed_version": <str>,
            "description": <str>,
            "cvss_score": <float>,
            "exploit_available": <bool>
        }
    ],
    "summary": {
        "total_vulnerabilities": <int>,
        "critical_count": <int>,
        "high_count": <int>,
        "medium_count": <int>,
        "low_count": <int>,
        "risk_score": <float>
    },
    "recommendations": [<list_of_fix_recommendations>]
}
```

### SecurityScanResult
Results from security code scanning:
```python
{
    "scan_id": <str>,
    "target_path": <str>,
    "scan_type": <str>,
    "files_scanned": <int>,
    "lines_scanned": <int>,
    "findings": [
        {
            "file": <str>,
            "line": <int>,
            "rule_id": <str>,
            "severity": "critical|high|medium|low",
            "message": <str>,
            "code_snippet": <str>,
            "recommendation": <str>
        }
    ],
    "metrics": {
        "cyclomatic_complexity_avg": <float>,
        "duplicate_code_percentage": <float>,
        "security_score": <float>
    }
}
```

### ComplianceCheck
Compliance verification results:
```python
{
    "check_id": <str>,
    "standard": <str>,
    "target": <str>,
    "compliance_status": "compliant|non_compliant|partial",
    "score": <float>,
    "requirements_checked": <int>,
    "requirements_passed": <int>,
    "violations": [
        {
            "requirement_id": <str>,
            "severity": "high|medium|low",
            "description": <str>,
            "remediation": <str>
        }
    ],
    "evidence": [<list_of_compliance_evidence>],
    "next_audit_date": <timestamp>
}
```

### SecurityEvent
Security monitoring event data:
```python
{
    "event_id": <str>,
    "timestamp": <timestamp>,
    "event_type": <str>,
    "severity": "critical|high|medium|low|info",
    "source": <str>,
    "description": <str>,
    "user_id": <str>,
    "ip_address": <str>,
    "resource": <str>,
    "action": <str>,
    "metadata": {<event_specific_data>},
    "alert_triggered": <bool>
}
```

### SSLValidationResult
SSL certificate validation results:
```python
{
    "hostname": <str>,
    "port": <int>,
    "certificate_valid": <bool>,
    "certificate_info": {
        "subject": <str>,
        "issuer": <str>,
        "valid_from": <timestamp>,
        "valid_until": <timestamp>,
        "serial_number": <str>,
        "signature_algorithm": <str>
    },
    "validation_errors": [<list_of_validation_errors>],
    "chain_valid": <bool>,
    "revocation_status": <str>,
    "security_score": <float>,
    "recommendations": [<list_of_security_recommendations>]
}
```

## Error Handling

All functions follow consistent error handling patterns:

- **Scan Errors**: `SecurityScanError` for vulnerability scanning failures
- **Audit Errors**: `SecurityAuditError` for security audit execution failures
- **Compliance Errors**: `ComplianceError` for compliance checking failures
- **Monitoring Errors**: `MonitoringError` for security monitoring setup failures
- **Report Errors**: `ReportGenerationError` for security report creation failures
- **Encryption Errors**: `EncryptionError` for cryptographic operation failures
- **Decryption Errors**: `DecryptionError` for decryption operation failures
- **Certificate Errors**: `CertificateError` for SSL validation failures
- **Log Audit Errors**: `AuditError` for access log analysis failures

## Integration Patterns

### Comprehensive Security Assessment
```python
from codomyrmex.security.digital import (
    scan_vulnerabilities, audit_code_security, check_compliance
)

# Scan dependencies for vulnerabilities
vuln_report = scan_vulnerabilities("./", scan_types=["dependency", "code"])

# Audit source code security
code_audit = audit_code_security("./src", audit_rules=[
    "sql_injection", "xss_prevention", "auth_bypass"
])

# Check compliance
compliance = check_compliance("./", standards=["OWASP", "NIST"])

# Generate comprehensive report
from codomyrmex.security.digital import generate_security_report
report = generate_security_report([vuln_report, code_audit, compliance])
```

### Real-time Security Monitoring
```python
from codomyrmex.security.digital import monitor_security_events

# Start security monitoring
monitor = monitor_security_events(event_types=[
    "authentication", "authorization", "data_access"
])

# Process security events
for event in monitor.events():
    if event['severity'] in ['critical', 'high']:
        # Trigger alert
        alert_security_team(event)
        # Log incident
        log_security_incident(event)
```

### Data Encryption Pipeline
```python
from codomyrmex.security.digital import encrypt_sensitive_data, decrypt_sensitive_data

# Encrypt sensitive configuration
config_data = load_sensitive_config()
encrypted = encrypt_sensitive_data(
    data=json.dumps(config_data),
    encryption_type="aes256"
)

# Store encrypted data
save_encrypted_config(encrypted['encrypted_data'])

# Later, decrypt when needed
decrypted_data = decrypt_sensitive_data(
    encrypted_data=stored_data,
    decryption_key=encrypted['key_fingerprint']
)
config = json.loads(decrypted_data)
```

## Security Considerations

- **Zero Trust Architecture**: All security functions assume breach and validate thoroughly
- **Defense in Depth**: Multiple security layers protect against various attack vectors
- **Secure by Default**: Conservative security settings with opt-in flexibility
- **Audit Trail**: Comprehensive logging of all security operations
- **Compliance Focus**: Adherence to industry standards and regulatory requirements
- **Performance Security**: Security measures don't compromise system performance
- **Key Management**: Secure cryptographic key lifecycle management
- **Incident Response**: Automated alerting and incident response capabilities

## Performance Characteristics

- **Efficient Scanning**: Optimized vulnerability scanning with minimal false positives
- **Scalable Monitoring**: Real-time security monitoring with configurable performance
- **Fast Encryption**: High-performance cryptographic operations
- **Resource Aware**: Security operations respect system resource limits
- **Parallel Processing**: Concurrent security analysis for large codebases
- **Caching**: Security scan results caching for improved performance
- **Streaming Analysis**: Real-time security event processing and alerting


## Navigation Links

- **Parent**: [Project Overview](../README.md)
- **Module Index**: [All Agents](../../AGENTS.md)
- **Documentation**: [Reference Guides](../../../../docs/README.md)
- **Home**: [Root README](../../../README.md)
