import { Sponge } from "./sponge";
/** Keccak-224 hash */
export declare class Keccak224 extends Sponge {
    constructor();
}
/** Keccak-256 hash */
export declare class Keccak256 extends Sponge {
    constructor();
}
/** Keccak-384 hash */
export declare class Keccak384 extends Sponge {
    constructor();
}
/** Keccak-512 hash */
export declare class Keccak512 extends Sponge {
    constructor();
}