Replaced PKCS#11-based cryptographic operations with a new DocumentService API integration. Removed all PKCS#11-related code, configurations, and dependencies, including options, self-test status, and signing logic. Updated `FinalizeEnvelopeCommand` to include a notification service and added base64 conversion for documents. Updated `ServiceCollectionExtensions` to register the new DocumentService client. Removed outdated documentation and diagrams related to PKCS#11. Updated project files and configurations to reflect these changes and incremented the version number. Added a comment in `EnvelopeFinalizationWorker` for future RabbitMQ integration.
Updated `EnvelopeGenerator.Infrastructure.Crypt.csproj` to add `DocumentService.Client` version `1.3.0` and upgraded several Microsoft.Extensions packages to version `10.0.10`.
In `Program.cs`, changed `DocumentService` registration to use the fully qualified name `EnvelopeGenerator.Server.Client.Services.DocumentService`.
Updated `EnvelopeGenerator.Tests.csproj` to upgrade `Microsoft.Extensions.DependencyInjection` and related packages to version `10.0.10`, including changes for the `net8.0` target framework.
Introduced a cryptographic infrastructure for PDF signing and validation using PKCS#11-based hardware security modules (HSMs) or software tokens. Key changes include:
- Added `PdfDigitalSignatureService` for signing PDFs, multi-signature support, and signature validation.
- Implemented `Pkcs11ExternalSigner` and `Pkcs11PdfSigningRsa` for PKCS#11-based signing with DevExpress PDF infrastructure.
- Added utilities like `Pkcs11SessionRunner`, `Pkcs11InteropBootstrap`, and `Pkcs11ToolBridge` for session management, library initialization, and fallback mechanisms.
- Introduced `Pkcs11Options` for managing PKCS#11 configurations.
- Updated project dependencies to include `DevExpress.Document.Processor`, `System.Security.Cryptography.Pkcs`, and `Pkcs11Interop`.
- Enhanced error handling and fallback support for PKCS#11 operations.
These changes enable robust and extensible PDF signing capabilities with detailed signature metadata extraction and validation.
A new project, `EnvelopeGenerator.Infrastructure.Crypt`, has been added to the solution. This project targets `.NET 8.0` and includes several `Microsoft.Extensions` dependencies (e.g., `Configuration.Binder`, `DependencyInjection.Abstractions`, etc.) and the `Pkcs11Interop` package.
The solution file (`EnvelopeGenerator.sln`) has been updated to include the new project, its build configurations, and its nesting under the same parent as `EnvelopeGenerator.Infrastructure.Doc`.
