Question

我在swift 3中使用SWCrypt。我以base64字符串格式获取服务器公钥。我应该用服务器公钥解密这个JSON文件。

{ "address":"asdf", "city": "asdf", "telephone": "345435", "zipCode": "1235458", "mobile":"3453245" }

在RSA解密和加密方法中公共私钥类型是DATA，我尝试将服务器公钥转换为数据但我无法加密数据并得到解码错误。

我的代码是创建公钥和加密数据。我在尝试加密数据时遇到此代码的解码错误。

 @IBAction func generateKey(_ sender: Any) {

    do {

    let (privateKey, publicKey) = try CC.RSA.generateKeyPair(2048)

    let privateKeyPEM = SwKeyConvert.PrivateKey.derToPKCS1PEM(privateKey)
    let publicKeyPEM = SwKeyConvert.PublicKey.derToPKCS8PEM(publicKey)

      privatePem = privateKeyPEM
      publicPem = publicKeyPEM

      print("this is generate public pem : \(publicPem!)")


    }
    catch {

      print(error.localizedDescription)
    }

  }




  @IBAction func createDataOfServerKey(_ sender: Any) {


    var serverKey : String = self.serverKey.text!

    serverKey = serverKey.replacingOccurrences(of: "+", with: "%2d", options: .literal, range: nil)
    serverKey  = serverKey.replacingOccurrences(of: "/", with: "%2d", options: .literal, range: nil)


//    let datakey = NSData(base64Encoded: serverKey, options: .init(rawValue: 0))

    let dataKey = serverKey.data(using: .utf8)

    if let data = dataKey {

      serverKeyData = data
    }


  }


  @IBAction func encryptJson(_ sender: Any) {

    let json = jsonData.text

    let s = json!.data(using: .utf8)

    do {
    let encrypt =   try CC.RSA.encrypt(s!, derKey: serverKeyData!, tag: s!, padding: .pkcs1, digest: .md5)

      publicPem64.text = encrypt.base64EncodedString(options: [])

      print("this is encrypt json : \(publicPem64.text)")
      print(publicPem64.text.characters.count)
      view.layoutIfNeeded()
    }

    catch {

      print(error.localizedDescription)
    }



  }

此代码工作并返回加密数据，然后我将此结果base64string发送到服务器，但我无法得到任何响应。

@IBAction func createDataOfServerKey(_ sender: Any) {


    var serverKey : String = self.serverKey.text!


 let datakey = NSData(base64Encoded: serverKey, options: .init(rawValue: 0))


    if let data = dataKey {

      serverKeyData = data
    }


  }

另外在android中使用un_wrap base64解码。

从base64字符串为RSA创建公钥

0 个答案: