/**
 * Decryption utilities for pre-save encrypted data
 */
export interface IDecryptOptions {
    /** Encryption algorithm used (default: aes-256-gcm) */
    algorithm?: 'aes-256-gcm' | 'aes-256-cbc' | 'aes-128-gcm';
    /** Encryption key */
    key: string;
}
/**
 * Decrypt a value that was encrypted using PreSaveProcessor.encrypt()
 */
export declare function decrypt(encryptedValue: string, options: IDecryptOptions): string;
/**
 * Decrypt multiple fields in a record
 */
export declare function decryptFields(record: Record<string, any>, fields: string[], options: IDecryptOptions): Record<string, any>;
/**
 * Verify a hashed password using PBKDF2 (bcrypt-compatible format)
 */
export declare function verifyHash(plainValue: string, hashedValue: string): boolean;
/**
 * Verify a simple SHA hash
 */
export declare function verifyShaHash(plainValue: string, hashedValue: string, algorithm?: 'sha256' | 'sha512' | 'md5', salt?: string): boolean;