我在使用PCSC阅读器和智能卡时遇到了问题。我无法使用GUI应用程序访问该卡。它就像控制台示例应用程序中的魅力一样 我收到例外:
while
但是当我取出卡并重新插入时,它可以正常工作
我认为在插入时我的Windows机器中的其他进程访问了该卡,所以我创建了一个ret
,当-2146435061
值等于{{ 1}}在WinSCardException
和continue
循环中,或break
如果连接正常。
我要做的步骤是连接到卡片:
PCSCReader reader = new PCSCReader();
string[] readers = reader.SCard.ListReaders();
// Returns 3 readers (even though I have 2 connected, but when I once connected the third one it now appears always) - why?
// Here with GUI I choose interested reader (which is really connected)
reader.SCard.ReleaseContext();
reader.Disconnect(); // In case there is any reader connected
// Here I stop my worker so that It will not try to access reader when it is not connected
reader.Connect(readers[1]); // For example let's connect to reader 1
// Now the worker starts working
//...DoWork method of worker:
while(true)
{
try {reader.ActivateCard(); break;} // break if successfully connected
// If the ex status is positive then there is some other issue which is handled by bigger try-catch, but for case ret is -2146435061 i want to continue the loop
catch (WinSCardException ex) {if (ex.Status > -100) throw (ex); }
// But this throw Exception over and over again
请帮助。
我使用这个包装器:http://www.smartcard-magic.net/en/pc-sc-reader/csharppcsc-wrapper/
示例程序看起来几乎相同,但不会抛出任何错误。
using System;
using System.Diagnostics;
using GS.Apdu;
using GS.PCSC;
using GS.SCard;
using GS.SCard.Const;
using GS.Util.Hex;
namespace ExamplePCSCReader
{
class Program
{
static void Main( string[] args )
{
ConsoleTraceListener consoleTraceListener = new ConsoleTraceListener();
Trace.Listeners.Add(consoleTraceListener);
PCSCReader reader = new PCSCReader();
try
{
reader.Connect();
reader.ActivateCard();
RespApdu respApdu = reader.Exchange("00 B0 00 00 0A"); // Get Card UID ...
if (respApdu.SW1SW2 == 0x9000)
{
Console.WriteLine("ICCID = 0x" + HexFormatting.ToHexString(respApdu.Data, true));
}
}
catch (WinSCardException ex)
{
Console.WriteLine( ex.WinSCardFunctionName + " Error 0x" +
ex.Status.ToString( "X08" ) + ": " + ex.Message );
}
catch (Exception ex)
{
Console.WriteLine( ex.Message );
}
finally
{
reader.Disconnect();
Console.WriteLine( "Please press any key..." );
Console.ReadLine();
}
}
}
}
}
答案 0 :(得分:2)
关于访问阅读器的问题 - 解决方案是与命令共享阅读器:
reader.ActivateCard(GS.SCard.Const.SCARD_SHARE_MODE.Shared, GS.SCard.Const.SCARD_PROTOCOL.Tx);
列出而非列出读者的问题是因为如果没有建立上下文,则包装器会从Windows注册表中获取读者列表。当我在列出读者之前建立上下文时 - 只显示连接的读者。
reader.SCard.EstablishContext();
readers = reader.SCard.ListReaders();
答案 1 :(得分:0)
我和你有同样的问题...但我找到了解决方案。
从SCardShareMode.Exclusive更改为> SCardShareMode.Shared
_hContext = new SCardContext();
_hContext.Establish(SCardScope.System);
// Create a _reader object using the existing context
_reader = new SCardReader(_hContext);
// Connect to the card
if (readerName == null || readerName == String.Empty)
{
// Retrieve the list of Smartcard _readers
string[] szReaders = _hContext.GetReaders();
if (szReaders.Length <= 0)
throw new PCSCException(SCardError.NoReadersAvailable,
"Could not find any Smartcard _reader.");
_err = _reader.Connect(szReaders[0],
SCardShareMode.Shared,
SCardProtocol.T0 | SCardProtocol.T1);
CheckErr(_err);
}
答案 2 :(得分:0)