带有智能卡的ECDsaCng-> CryptographicException [英] ECDsaCng with smart card -> CryptographicException

问题描述

当我运行以下代码时，我得到CryptographicException.

When I run following code, I get CryptographicException.

         using (c1 = CngKey.Open("ecc_test_card21_384", CngProvider.MicrosoftSmartCardKeyStorageProvider, CngKeyOpenOptions.UserKey))
            {
                using (ECDsaCng ecsdKey = new ECDsaCng(c1))
                {
                    ecsdKey.SignData(dataX);
                }
            }

System.Security.Cryptography.CryptographicException未处理
  Message =参数不正确.

  Source = System.Core
  StackTrace:
      v System.Security.Cryptography.NCryptNative.GetProperty(SafeNCryptHandle ncryptObject，String propertyName，CngPropertyOptions propertyOptions，Boolean&foundProperty)
      v System.Security.Cryptography.CngKey.get_IsEphemeral()
      v System.Security.Cryptography.ECDsaCng..ctor(CngKey键)
  InnerException:

  Source=System.Core
  StackTrace:
       v System.Security.Cryptography.NCryptNative.GetProperty(SafeNCryptHandle ncryptObject, String propertyName, CngPropertyOptions propertyOptions, Boolean& foundProperty)
       v System.Security.Cryptography.CngKey.get_IsEphemeral()
       v System.Security.Cryptography.ECDsaCng..ctor(CngKey key)
  InnerException:

按以下顺序使用C而非C#可以正常工作

Using C not C# with following sequence works fine

NCryptOpenStorageProvider

NCryptOpenKey

NCryptSignHash

是否有解决方案，如何将 ECDsaCng与智能卡一起使用?

Is there a solution how to use ECDsaCng with smart card?

Lukas

推荐答案

我假设open语句正在工作，并且您在SignData()方法上遇到错误.

I assume the open statement is working and you are getting the error on the SignData() method.

您可能是由于 dataX而出现错误.我需要更多地了解在C#和C代码中获取此变量的方式.您可能正在从文件中以7位模式而不是8位模式读取密钥.查看 您流式编码方法.

You are probably getting the error because of dataX.  I would need to know more about the way this variable is obtained in the C# and C code.   You may be reading the key in 7 bit mode rather than 8 bith mode from a file.  Check you stream encoding method.

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