C# und X509Certificate2

[lagraf]

Hallo,
ich habe mir von github eine C# Sample App geladen, die ich nach X# transportieren wollte. Die C# Sample App habe ich in der XIDE compiliert und erhalte den Fehler

error CS1070: The type name 'X509Certificate2' could not be found. This type has been forwarded to assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Consider adding a reference to that assembly. 18,25 AbstractCashRegisterSmardCard.cs Cashregister.Smartcard.AbstractCashRegisterSmardCard:ReadCertificate

Lib und Namespace System.Security.Cryptography.X509Certificates sind eingebunden, laut www ist diese für X509Certificate2 notwendig.

Was könnte das Problem sein?

LG Franz

[wriedmann]

Hallo Franz,
System ist als Lib eingebunden?
Wolfgang

[lagraf]

Hallo Wolfgang,
habe ich nun eingebunden, damit bringt mir der Compiler fehlende type/namespace Meldungen: CngKey, ECDsaCng, etc.
Die sollten in System.Security.Cryptography enthalten sein, die lib finde ich aber nicht in der Property Liste.
LG

[Chris]

Hi Franz,

See https://learn.microsoft.com/en-us/dotne ... mework-4.8, this type for example is included in System.Core.dll, so you need to add this in the references

[lagraf]

Hi Chris,
thank you for this info, now XIDE shows 3 errors (hope these are the last):
- CS0246 type or namespace 'ICardReader' not found
- CS1061 PCSC.SCardContext does not contain a definition for 'ConnectReader'
- CS0246 type or namespace 'ReaderStatus' not found

Do you know what to do?

regards Franz

[Chris]

Hi Franz,

You're probably missing some using statements. Can you please post a link to the original source code you found and use?

[lagraf]

Hi Chris,
https://github.com/A-Trust/RKSV/tree/ma ... 20Examples
a.sign RK CHIP / APDU Examples / csharp / SampleClient
Regards

[Chris]

Hi Franz,

There are several .cs files in there, not sure which one you are using. Did you include all the using statements from the one you are using? Also have you added the references to the necessary dlls?

[lagraf]

Hi Chris,
attached you find my XIDE C# application
Regards

[Chris]

Hi Franz,

I am not familiar with the dll structure of this product, but from what I see in their sample, they have two references to external dll files, one to PCSC.dll and another to PCSC.Iso7816.dll. Your contains only one references, to a different named dll, pcsc-sharp.dll.

I don't know if you did this because you needed different functionality, but when I added the same dlls as the original sample uses, then your code compiles with no errors.

I took the dlls drom this browsers, after unzipping the sample code, downloaded from git:

\RKSV-main\a.sign RK CHIP\APDU Examples\csharp\packages\PCSC.5.0.0\lib\net40\PCSC.dll
\RKSV-main\a.sign RK CHIP\APDU Examples\csharp\packages\PCSC.Iso7816.5.0.0\lib\net40\PCSC.Iso7816.dll

I also tried the net472 versions (instead of net40), and that worked fine, too.