Security Guidelines for Extensions¶

This document outlines security best practices and guidelines for developing and integrating extensions with Anya Core.

Overview¶

Security is paramount when developing extensions for Anya Core. This guide provides comprehensive security guidelines to ensure extensions maintain the platform's security posture.

Security Principles¶

1. Principle of Least Privilege¶

• Extensions should request only the minimum permissions necessary
• Scope access to specific resources and functions
• Implement role-based access control where applicable

2. Input Validation¶

• Validate all input data from external sources
• Sanitize user inputs to prevent injection attacks
• Use whitelisting approaches where possible

3. Secure Communication¶

• Use encrypted connections for all network communications
• Implement proper certificate validation
• Support modern TLS protocols only

Extension Security Requirements¶

1. Authentication and Authorization¶

// Example: Secure extension authentication
pub struct ExtensionAuth {
    api_key: String,
    permissions: Vec<Permission>,
    expiry: DateTime<Utc>,
}

impl ExtensionAuth {
    pub fn validate(&self) -> Result<(), SecurityError> {
        // Validate API key
        if !self.is_valid_api_key() {
            return Err(SecurityError::InvalidApiKey);
        }

        // Check expiry
        if self.expiry < Utc::now() {
            return Err(SecurityError::ExpiredCredentials);
        }

        Ok(())
    }
}

2. Data Protection¶

• Encrypt sensitive data at rest and in transit
• Implement secure key management
• Follow data minimization principles
• Provide data deletion capabilities

3. Error Handling¶

• Avoid exposing sensitive information in error messages
• Log security events appropriately
• Implement proper error recovery mechanisms

API Security¶

1. Rate Limiting¶

// Example: Rate limiting implementation
pub struct RateLimiter {
    requests_per_minute: u32,
    current_requests: u32,
    window_start: DateTime<Utc>,
}

impl RateLimiter {
    pub fn check_rate_limit(&mut self) -> Result<(), SecurityError> {
        let now = Utc::now();

        // Reset window if needed
        if now.signed_duration_since(self.window_start).num_minutes() >= 1 {
            self.current_requests = 0;
            self.window_start = now;
        }

        // Check limit
        if self.current_requests >= self.requests_per_minute {
            return Err(SecurityError::RateLimitExceeded);
        }

        self.current_requests += 1;
        Ok(())
    }
}

2. Input Sanitization¶

• Validate all API inputs
• Use parameterized queries for database operations
• Implement request size limits

3. Output Encoding¶

• Encode outputs based on context
• Prevent information leakage
• Use secure serialization methods

Cryptographic Guidelines¶

1. Approved Algorithms¶

• Use industry-standard cryptographic algorithms
• Follow current best practices for key sizes
• Implement proper random number generation

2. Key Management¶

// Example: Secure key management
pub struct KeyManager {
    keys: HashMap<String, SecureKey>,
    rotation_policy: RotationPolicy,
}

impl KeyManager {
    pub fn get_key(&self, key_id: &str) -> Result<&SecureKey, SecurityError> {
        self.keys.get(key_id)
            .ok_or(SecurityError::KeyNotFound)
    }

    pub fn rotate_key(&mut self, key_id: &str) -> Result<(), SecurityError> {
        // Implement key rotation logic
        Ok(())
    }
}

Security Testing¶

1. Static Analysis¶

• Use static analysis tools for code review
• Implement automated security scanning
• Review dependencies for vulnerabilities

2. Dynamic Testing¶

• Perform penetration testing
• Implement fuzz testing
• Use runtime security monitoring

3. Security Audits¶

• Regular security code reviews
• Third-party security assessments
• Vulnerability disclosure program

Compliance Requirements¶

1. Regulatory Compliance¶

• Follow applicable data protection regulations
• Implement privacy by design
• Maintain audit trails

2. Industry Standards¶

• Comply with relevant security standards
• Follow Bitcoin security best practices
• Implement secure development lifecycle

Incident Response¶

1. Security Monitoring¶

// Example: Security event logging
pub struct SecurityLogger {
    log_level: LogLevel,
    storage: Box<dyn LogStorage>,
}

impl SecurityLogger {
    pub fn log_security_event(&self, event: SecurityEvent) {
        if event.severity >= self.log_level {
            self.storage.store(event);
        }
    }
}

2. Response Procedures¶

• Immediate containment procedures
• Evidence preservation
• Communication protocols
• Recovery procedures

Best Practices Checklist¶

Development Phase¶

• [ ] Security requirements defined
• [ ] Threat modeling completed
• [ ] Secure coding guidelines followed
• [ ] Dependencies vetted for security

Testing Phase¶

• [ ] Security testing performed
• [ ] Penetration testing completed
• [ ] Code review conducted
• [ ] Vulnerability assessment done

Deployment Phase¶

• [ ] Security configuration validated
• [ ] Monitoring implemented
• [ ] Incident response plan ready
• [ ] Documentation updated

Resources¶

• OWASP Top 10
• Bitcoin Security Best Practices
• Anya Core Security Documentation

See Also¶

• Extension Development Guide
• Integration Testing
• Core Integration

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This documentation is part of the Anya Extensions project. For more information, see the main documentation.