import type { Hasher } from './Hasher.js';
/**
 * Node.js `crypto.scrypt` password hasher with embedded parameters in the hash string.
 */
export declare class ScryptHasher implements Hasher {
    private readonly cost;
    private readonly blockSize;
    private readonly parallelization;
    /**
     * @param opts - Scrypt parameters.
     */
    constructor(opts: {
        cost: number;
        blockSize: number;
        parallelization: number;
    });
    /**
     * @inheritdoc
     */
    make(value: string): Promise<string>;
    /**
     * @inheritdoc
     */
    check(value: string, hashedValue: string): Promise<boolean>;
    /**
     * @inheritdoc
     */
    needsRehash(hashedValue: string): boolean;
}
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