export declare enum EncryptLevel {
    EncryptLevel1 = 1,
    EncryptLevel2 = 2,
    EncryptLevel3 = 3
}
export declare class Aes {
    static genRandomKey(level: EncryptLevel): string;
    static encrypt(plainText: string, secretKey: string): string;
    static decrypt(cipherText: string, secretKey: string): string;
}