问无法验证Mi Band2

EN

我试图将应用程序与Mi Band2连接并进行身份验证，但在最后一步(发送加密密钥并接收成功的身份验证响应)上，我会收到错误响应。第一步、第二步和第三步是成功的，没有例外。这是所有认证代码。

1. 具有认证级别1的主Auth方法(通知需要触摸响应的频带)
2. 检查authCharacteristic的新更新并等待来自频带的新响应。有句柄2、3和4级别的身份验证。
3. 加密到AES/ECB/NoPadding加密(我也尝试过AesCbc，但结果相同)。 公共异步任务身份验证(){ var authCharacteristic =等待Gatt.GetCharacteristicByServiceUuid(新Guid("0000FEE1-0000-1000-8000-00805F9B34FB")，新的authCharacteristic //订阅通知等待authCharacteristic.WriteClientCharacteristicConfigurationDescriptorAsync(GattClientCharacteristicConfigurationDescriptorValue.Notify)；//级别1 Debug.WriteLine(“级别1已启动”)；authCharacteristic.WriteValueAsync(sendKey.ToArray().AsBuffer()) secretKey =新的byte[] { 0x30，0x31，0x32，0x33，0x34，0x35，0x36，0x37，0x38，0x39，0x40，0x41，0x42，0x43，0x44，0x45 }；List sendKey =新列表()；sendKey.Add(1)；sendKey.Add(8)；sendKey.AddRange(secretKey)；if (等待== GattCommunicationStatus.Success) {Debug.WriteLine(“一级成功”)；返回authCharacteristic_ValueChanged(GattCharacteristic发送方( GattValueChangedEventArgs args) { var authCharacteristic = authCharacteristic.ValueChanged Gatt.GetCharacteristicByServiceUuid(新Guid(“0000FEE1-0000-1000-800-00805F9B34FB”)，新Guid)if (sender.Uuid.ToString() == "00000009-0000-3512-2118-0009af100700") {Debug.WriteLine(“接收特征值：”+ args.CharacteristicValue.ToArray().ToList())；Debug.WriteLine(“接收到的SendKey：”+args.CharacteristicValue.ToArray Debug.WriteLine(“接收状态：”+ args.CharacteristicValue.ToArray().ToList()2)；))变量请求= args.CharacteristicValue.ToArray().ToList()；字节authResponse = 0x10；字节authSendKey = 0x01；字节authRequestRandomAuthNumber = 0x02；字节authRequestEncryptedKey = 0x03；字节authSuccess = 0x01；字节authFail = 0x04；List authNumber =新List()；authNumber.Add(0x02)；authNumber.Add(0x08)；if (等待authNumber.Add == GattCommunicationStatus.Success) Debug.WriteLine(“二级成功”)；}否则if (request == authResponse & request1 == authRequestRandomAuthNumber & request2 == authSuccess) {Debug.WriteLine(“3级开始”)；List randomKey =新List()；List relevantResponsePart =新List()；var responseValue = args.CharacteristicValue.ToArray()；for (int i= 0；i< responseValue.Count()；{ if (i randomKey.AddRange(Encrypt(relevantResponsePart.ToArray()))；3) relevantResponsePart.Add(responseValuei)；} randomKey.Add(0x03)；randomKey.Add(0x08)；relevantResponsePart.Add(ResponseValuei)如果(等待authCharacteristic.WriteValueAsync(randomKey.ToArray().AsBuffer()) == GattCommunicationStatus.Success) Debug.WriteLine(“3级成功”)；}否则if (request == authResponse & request1 == authRequestEncryptedKey & request2 == authSuccess) { //无法到达此代码。最后一个字节是4(错误)。Debug.WriteLine(“已完成”)；isAuthed =真；}}公共byte[]加密( byte[]数据){ byte[] secretKey =新byte[]{ 0x30、0x31、0x32、0x33、0x34、0x35、0x36、0x37、0x38、0x39、0x40、0x41、0x42、0x43、0x44、0x45 }；string aesKey = Convert.ToBase64String(secretKey)；IBuffer key = Convert.FromBase64String(aesKey).AsBuffer()；SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcb)；algorithmProvider = algorithmProvider.CreateSymmetricKey(key)；IBuffer buffEncrypt = CryptographicEngine.Encrypt( ckey，data.AsBuffer()，null)；返回buffEncrypt.ToArray()；}

这里控制台中的所有调试消息：

Connected to MI Band 2
Level 1 started
Level 1 success
Received characteristic value: 16
Received SendKey: 1
Received Status: 1
Level 2 started
Level 2 success
Received characteristic value: 16
Received SendKey: 2
Received Status: 1
Level 3 started
Level 3 success
Received characteristic value: 16
Received SendKey: 3
Received Status: 4