export declare type Message = string | number[] | ArrayBuffer;
export declare class Sha512 {
    #private;
    constructor(bits?: number, sharedMemory?: boolean);
    protected init(bits: number, sharedMemory: boolean): void;
    update(message: Message): this;
    protected finalize(): void;
    protected hash(): void;
    hex(): string;
    toString(): string;
    digest(): number[];
    array(): number[];
    arrayBuffer(): ArrayBuffer;
}
export declare class HmacSha512 extends Sha512 {
    #private;
    constructor(secretKey: Message, bits?: number, sharedMemory?: boolean);
    protected finalize(): void;
}