/**
 * HIPAA Compliance Module for Pompelmi
 *
 * This module provides comprehensive HIPAA compliance features for healthcare environments
 * where Pompelmi is used to analyze potentially compromised systems containing PHI.
 *
 * Key protections:
 * - Data sanitization and redaction
 * - Secure temporary file handling
 * - Audit logging
 * - Memory protection
 * - Error message sanitization
 */
export interface HipaaConfig {
    enabled: boolean;
    auditLogPath?: string;
    encryptTempFiles?: boolean;
    sanitizeErrors?: boolean;
    sanitizeFilenames?: boolean;
    memoryProtection?: boolean;
    requireSecureTransport?: boolean;
}
export interface AuditEvent {
    timestamp: string;
    eventType: 'file_scan' | 'temp_file_created' | 'temp_file_deleted' | 'error_occurred' | 'phi_detected' | 'security_violation';
    sessionId: string;
    userId?: string;
    details: {
        action: string;
        fileHash?: string;
        fileSizeBytes?: number;
        success: boolean;
        sanitizedError?: string;
        metadata?: Record<string, unknown>;
    };
}
declare class HipaaComplianceManager {
    private config;
    private sessionId;
    private auditEvents;
    constructor(config: HipaaConfig);
    /**
     * Sanitize filename to prevent PHI leakage in logs
     */
    sanitizeFilename(filename?: string): string;
    /**
     * Sanitize error messages to prevent PHI exposure
     */
    sanitizeError(error: Error | string): string;
    /**
     * Create secure temporary file path with encryption if enabled
     */
    createSecureTempPath(prefix?: string): string;
    /**
     * Get or create secure temporary directory with restricted permissions
     */
    private getSecureTempDir;
    /**
     * Secure file cleanup with multiple overwrite passes
     */
    secureFileCleanup(filePath: string): Promise<void>;
    /**
     * Calculate secure file hash for audit purposes
     */
    calculateFileHash(data: Uint8Array): string;
    /**
     * Log audit event
     */
    auditLog(eventType: AuditEvent['eventType'], details: Partial<AuditEvent['details']>): void;
    /**
     * Write audit event to file
     */
    private writeAuditLog;
    /**
     * Generate cryptographically secure session ID
     */
    private generateSessionId;
    /**
     * Get current audit events for this session
     */
    getAuditEvents(): AuditEvent[];
    /**
     * Clear sensitive data from memory
     */
    clearSensitiveData(): void;
    /**
     * Validate transport security
     */
    validateTransportSecurity(url?: string): boolean;
}
/**
 * Initialize HIPAA compliance
 */
export declare function initializeHipaaCompliance(config: HipaaConfig): HipaaComplianceManager;
/**
 * Get current HIPAA compliance manager
 */
export declare function getHipaaManager(): HipaaComplianceManager | null;
/**
 * HIPAA-compliant error wrapper
 */
export declare function createHipaaError(error: Error | string, context?: string): Error;
/**
 * HIPAA-compliant temporary file utilities
 */
export declare const HipaaTemp: {
    createPath: (prefix?: string) => string;
    cleanup: (filePath: string) => Promise<void>;
};
export { HipaaComplianceManager };