/// <reference types="node" />
export declare class Session {
    private poolname;
    private username;
    private scramblingParameter;
    private hkdf;
    private key;
    constructor(poolname: string, username: string, key: Buffer, scramblingParameter: Buffer);
    constructor(poolname: string, username: string, hkdf: string);
    calculateSignature(secretBlock: string, timestamp: string): string;
    getHkdf(): string;
    private calculateHkdf();
}