/**
 * Data Classification System
 *
 * Tags all data by sensitivity level for appropriate handling.
 * Supports GDPR, SOC2, and CSSF compliance requirements.
 *
 * Added by Pantheon Security for enterprise compliance support.
 */
import { DataClassification, DataCategory, ClassifiedData, LegalBasis, DataInventoryEntry } from "./types.js";
/**
 * Data Classifier class
 */
export declare class DataClassifier {
    private static instance;
    private customClassifications;
    private constructor();
    /**
     * Get singleton instance
     */
    static getInstance(): DataClassifier;
    /**
     * Classify a data type
     */
    classify(dataType: string): ClassifiedData | null;
    /**
     * Get the classification level for a data type
     */
    getClassificationLevel(dataType: string): DataClassification;
    /**
     * Check if data requires encryption
     */
    requiresEncryption(dataType: string): boolean;
    /**
     * Check if data access requires audit logging
     */
    requiresAudit(dataType: string): boolean;
    /**
     * Check if data is exportable (for GDPR data portability)
     */
    isExportable(dataType: string): boolean;
    /**
     * Check if data is erasable (for GDPR right to erasure)
     */
    isErasable(dataType: string): boolean;
    /**
     * Get legal basis for processing
     */
    getLegalBasis(dataType: string): LegalBasis;
    /**
     * Get processing purposes
     */
    getProcessingPurposes(dataType: string): string[];
    /**
     * Get retention policy
     */
    getRetentionPolicy(dataType: string): string;
    /**
     * Register a custom classification
     */
    registerClassification(dataType: string, classification: ClassifiedData): void;
    /**
     * Get all known data types
     */
    getAllDataTypes(): string[];
    /**
     * Get data types by classification level
     */
    getDataTypesByClassification(level: DataClassification): string[];
    /**
     * Get data types by category
     */
    getDataTypesByCategory(category: DataCategory): string[];
    /**
     * Build a data inventory entry
     */
    buildInventoryEntry(dataType: string, storageLocation: string): DataInventoryEntry | null;
    /**
     * Parse retention policy to days
     */
    private parseRetentionDays;
    /**
     * Get human-readable description for data type
     */
    private getDataTypeDescription;
    /**
     * Validate classification against compliance requirements
     */
    validateCompliance(dataType: string, regulations: ("GDPR" | "SOC2" | "CSSF")[]): {
        valid: boolean;
        issues: string[];
    };
}
/**
 * Get the data classifier instance
 */
export declare function getDataClassifier(): DataClassifier;
/**
 * Check if a data type requires encryption
 */
export declare function requiresEncryption(dataType: string): boolean;
/**
 * Check if a data type requires audit logging
 */
export declare function requiresAudit(dataType: string): boolean;
/**
 * Get the classification level for a data type
 */
export declare function getClassificationLevel(dataType: string): DataClassification;
/**
 * Check if data is exportable for GDPR
 */
export declare function isExportable(dataType: string): boolean;
/**
 * Check if data can be erased for GDPR
 */
export declare function isErasable(dataType: string): boolean;