/// <reference types="node" />
export declare const hashMsgHex: (msgHex: string, hashAlg: string) => Buffer;
export declare const signMessage: (privateKey: string, sigAlg: string, hashAlg: string, msgHex: string) => Promise<string>;
export declare function sign(privateKey: string, signAlgo: string, hashAlgo: string, msgHex: string): Promise<string>;