I am writing .dll for getting thumbprint string from hardware token, using packages:packages.config:
<?xml version="1.0" encoding="utf-8"?><packages><package id="Aktiv.RutokenPkcs11Interop" version="2.0.11" targetFramework="net45" /><package id="Pkcs11Interop" version="4.1.2" targetFramework="net45" /></packages>App.config
<?xml version="1.0" encoding="utf-8"?><configuration><startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" /></startup><runtime><assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="Pkcs11Interop" publicKeyToken="c10e9c2d8c006d2a" culture="neutral" /><bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.1.2.0" /></dependentAssembly></assemblyBinding></runtime></configuration>When i run code directly in VS2022, it works fine, but when i build it and try to call from python VS Code - it dumps with error:Traceback (most recent call last):...
print(com_object.GetThumbsString()) File "", line 3, in GetThumbsStringpywintypes.com_error: (-2147352567, 'Error.', (0, 'GetThumbsCrypto','Failed to load file or assembly "Pkcs11Interop, Version=4.1.1.0,Culture=neutral, PublicKeyToken=c10e9c2d8c006d2a" or one of itsdependencies. The specified file cannot be found.', None, 0,-2147024894), None)
Python
import win32com.clientdef main(): com_object = win32com.client.Dispatch("GetThumbsCrypto.GetCertificateThumbs") print(com_object.GetThumbsString())if __name__ == "__main__": main()C#
using System;using System.Collections.Generic;using System.Linq;using Net.Pkcs11Interop.Common;using Net.Pkcs11Interop.HighLevelAPI;using RutokenPkcs11Interop;using RutokenPkcs11Interop.HighLevelAPI;using System.Security.Cryptography;using System.Runtime.InteropServices;namespace GetThumbsCrypto{ [ComVisible(true)] [InterfaceType(ComInterfaceType.InterfaceIsIDispatch)] [Guid("0EA9F9D3-7AE9-4816-8717-E6F0FAF67887")] public interface IGetCertificateThumbs { [DispId(1)] string GetThumbsString(); [DispId(2)] string TestSub(); } [ComVisible(true)] [Guid("8DD66953-3247-4206-B37E-3C3F7B5850F6"), ClassInterface(ClassInterfaceType.None)] public class GetCertificateThumbs : IGetCertificateThumbs { // Certificate search template static readonly List<ObjectAttribute> CertificateAttributes = new List<ObjectAttribute> { // Certificate object new ObjectAttribute(CKA.CKA_CLASS, CKO.CKO_CERTIFICATE), // Certificate is a token object new ObjectAttribute(CKA.CKA_TOKEN, true), // Certificate is accessible without authentication new ObjectAttribute(CKA.CKA_PRIVATE, false), // Certificate type is X.509 new ObjectAttribute(CKA.CKA_CERTIFICATE_TYPE, CKC.CKC_X_509), }; public string TestSub() { return "Test is ok"; } public string GetThumbsString() { string res = ""; try { Console.WriteLine("Library initialization"); using (var pkcs11 = new Net.Pkcs11Interop.HighLevelAPI.Pkcs11(Settings.RutokenEcpDllDefaultPath, AppType.MultiThreaded)) { Console.WriteLine("Checking tokens available"); Slot slot = GetUsableSlot(pkcs11); Console.WriteLine("Opening RW session"); using (Session session = slot.OpenSession(SessionType.ReadWrite)) { try { Console.WriteLine("Getting information..."); Console.WriteLine(" Getting certificates..."); List<ObjectAttribute> publicKeyAttributes = new List<ObjectAttribute>(); publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_CLASS, CKO.CKO_CERTIFICATE)); publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_TOKEN, true)); publicKeyAttributes.Add(new ObjectAttribute(CKA.CKA_CERTIFICATE_TYPE, CKC.CKC_X_509)); var certificates = session.FindAllObjects(CertificateAttributes); Errors.Check(" Certificates not found", certificates != null); Errors.Check(" Certificates not found", certificates.Any()); List<string> thumbprints = new List<string>(); foreach (var certificateObject in certificates) { byte[] certificateData = session.GetAttributeValue(certificateObject, new List<CKA> { CKA.CKA_VALUE })[0].GetValueAsByteArray(); byte[] thumbprintBytes; using (SHA1Managed sha1 = new SHA1Managed()) { thumbprintBytes = sha1.ComputeHash(certificateData); } string thumbprint = BitConverter.ToString(thumbprintBytes).Replace("-", ""); thumbprints.Add(thumbprint); } Console.WriteLine("Thumbprints of found certificates:"); foreach (var thumbprint in thumbprints) { Console.WriteLine(thumbprint); res = string.Join("$", thumbprints); } string certificateInfo = session.GetCertificateInfoText(certificates[0]); Errors.Check(" Certificate info not found", !string.IsNullOrEmpty(certificateInfo)); Console.WriteLine(certificateInfo); Console.WriteLine("Information has been acquired successfully"); } finally { session.Logout(); } } } } catch (Pkcs11Exception ex) { Console.WriteLine($"Operation failed [Method: {ex.Method}, RV: {ex.RV}]"); } catch (Exception ex) { Console.WriteLine($"Operation failed [Message: {ex.Message}]"); } return res; } public static Slot GetUsableSlot(Net.Pkcs11Interop.HighLevelAPI.Pkcs11 pkcs11) { List<Slot> slots = pkcs11.GetSlotList(SlotsType.WithTokenPresent); if (slots == null) throw new NullReferenceException("No available slots"); if (slots.Count <= 0) throw new InvalidOperationException("No available slots"); Slot slot = slots[0]; return slot; } } public static class Errors { public static void Check(string errorMessage, bool condition) { if (!condition) throw new InvalidOperationException(errorMessage); } }}I have tried to call TestSub() from com using python - it works fine.I have reinstalled nuget packages.I have changed target platform to 4.7.2 and then back to 4.5 - I don't know why.