import { OptionsMetadata } from '../../';
/**
 * Bcrypt hash utilities class.
 */
export declare class HashUtils {
    /**
     * Amount of salt rounds to be executed while hashing.
     * If configuration files do not have presets for salt rounds, 10 rounds is the default value.
     */
    private saltRounds;
    /**
     * Bcrypt hash utilities constructor.
     * @param saltRounds
     * @param optionsMetadata
     */
    constructor(saltRounds?: number, optionsMetadata?: OptionsMetadata);
    /**
     * Generate hash based on provided password and configured salt rounds amount.
     * @param password Password to be encrypted
     */
    generate: (password: string) => string;
    /**
     * Validate provided password towards provided hash
     * @param password Password to be compared
     * @param hash Existing hash
     */
    validate: (password: string, hash: string) => boolean;
}