declare class SecureUtil {
    static _instance: SecureUtil;
    privateKey: string;
    publicKey: string;
    constructor();
    regenerateKeyPair(): void;
    importKeyPairFromString(publicKey: string, privateKey: string): void;
    importKeyPair(publicKeyPath: string, privateKeyPath: string): void;
    rsaDecrypt(cipherBase64: string): string;
    aesDecrypt(msg: string, key: string): string;
    aesEncrypt(msg: string, key: string): string;
}
declare const _default: SecureUtil;
export default _default;
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