/// <reference types="node" />
import SM2 from './sm2/index';
import { encrypt, decrypt, createIV } from './sm4';
declare const _default: {
    SM2: typeof SM2;
    sm4: {
        encrypt: typeof encrypt;
        decrypt: typeof decrypt;
        createIV: typeof createIV;
    };
    helper: {
        encode: {
            bufToHex(buf: number[] | Uint8Array | Buffer): string;
            numToHex(d: number): string;
            _binToHex(binStr: string): string;
            strToHex(str: string): string;
            hexToBuf(hexStr: string): number[] | Uint8Array | Buffer;
            _hexToBin(hexStr: string): string;
            hexToStr(hexStr: string): string;
            hexToBase64(hexStr: string): string;
            bufToBase64(buf: Uint8Array): string;
            strToBase64(str: string): string;
            urlBase64ToBase64(u64: string): string;
            base64ToUrlBase64(b64: string): string;
            _base64ToBin(b64: string): string;
            base64ToBuf(b64: string): number[] | Buffer;
            base64ToStr(b64: string): string;
            bufToUrlBase64(buf: Uint8Array): string;
            strToUrlBase64(str: string): string;
            base64ToHex(b64: string): string;
            bufToBin(buf: number[] | Uint8Array | Buffer): string;
            strToBin(str: string): string;
            binToBuf(binStr: string): number[] | Buffer;
            strToBuf(str: string): number[] | Buffer;
            binToStr(binStr: string): string;
            bufToStr(buf: number[] | Uint8Array | Buffer): string;
        };
        byte: {
            arrayCopy: typeof import("./helper/byte").arrayCopy;
            longToByte: typeof import("./helper/byte").longToByte;
            intToByte: typeof import("./helper/byte").intToByte;
            intArrayToByteArray: typeof import("./helper/byte").intArrayToByteArray;
            byteToInt: typeof import("./helper/byte").byteToInt;
            byteArrayToIntArray: typeof import("./helper/byte").byteArrayToIntArray;
        };
        asn1: {
            decode: (str: string) => string;
        };
        Buffer: BufferConstructor;
    };
};
export default _default;