/// <reference types="node" />
import NodeRSA from 'node-rsa';
export declare type EncryptionSchemeType = NodeRSA.EncryptionScheme | NodeRSA.AdvancedEncryptionScheme;
export declare class RsaAesServer {
    static server: {
        [size: number]: NodeRSA;
    };
    static getServerNode(size: number): NodeRSA;
    private AZaz09;
    private option;
    private algorithmOption;
    /**
     * 初始化一个密钥流程
     * @param size 密钥长度
     * @param encryptionScheme 如果是提供给 web的 jsencrypt使用需要填 pkcs1
     * @param bSameServer 是否使用统一的服务端私钥，这会大大加速公钥的获取速度
     */
    constructor(size?: number, encryptionScheme?: EncryptionSchemeType, bSameServer?: boolean);
    loadAesKey(key: string, algorithm?: string): void;
    loadAes(aes: any): void;
    private _parseAlgorithm;
    private randWord;
    private useKeys;
    private generateRsa;
    private loadPublicRsa;
    private generateDes;
    getAesKey(): {
        algorithm: string;
        key: string;
        autoPadding: boolean;
    } | undefined;
    /**
     * 第一步，提供公钥给客户端
     * @param format
     */
    stepOne(format?: NodeRSA.FormatPem): string;
    /**
     * 接收客户端使用公钥加密过的新的公钥,然后返回  加密的 aes 密钥信息
     * @param data
     * @param format
     * @param encryptionScheme
     */
    stepTwo(data: Buffer, format?: NodeRSA.Format, encryptionScheme?: EncryptionSchemeType): Buffer;
    testDecrypt(type: 'server' | 'client', wds: Buffer): Buffer;
    testEncrypt(type: 'server' | 'client', wds: Buffer): Buffer;
    encode(data: string): {
        encryptedData: string;
        iv: string | null;
    };
    decode(encryptedData: string, iv?: string | null): string;
}