OfficeIMO.Pdf.Cryptography.Pkcs 2.0.1

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.7.2 This package targets .NET Framework 4.7.2. The package is compatible with this framework or higher. 
dotnet add package OfficeIMO.Pdf.Cryptography.Pkcs --version 2.0.1
                    


                    

                
NuGet\Install-Package OfficeIMO.Pdf.Cryptography.Pkcs -Version 2.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="OfficeIMO.Pdf.Cryptography.Pkcs" Version="2.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OfficeIMO.Pdf.Cryptography.Pkcs" Version="2.0.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OfficeIMO.Pdf.Cryptography.Pkcs" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add OfficeIMO.Pdf.Cryptography.Pkcs --version 2.0.1
                    


                    

                
#r "nuget: OfficeIMO.Pdf.Cryptography.Pkcs, 2.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package OfficeIMO.Pdf.Cryptography.Pkcs@2.0.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=OfficeIMO.Pdf.Cryptography.Pkcs&version=2.0.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OfficeIMO.Pdf.Cryptography.Pkcs&version=2.0.1
                    


                            Install as a Cake Tool

OfficeIMO.Pdf.Cryptography.Pkcs

This optional package adds SignedCms, RFC 3161, and X509Chain validation to the dependency-free signature parser in OfficeIMO.Pdf. Install it only when an application needs cryptographic signature validation.

using OfficeIMO.Pdf;
using OfficeIMO.Pdf.Cryptography;

var provider = new PdfPkcsSignatureCryptographyProvider();
var report = PdfDocument.Load("signed.pdf").ValidateSignatures(provider);

foreach (var signature in report.Signatures) {
    var crypto = signature.CryptographicResult;
    Console.WriteLine($"Math: {crypto?.MathematicalSignatureStatus}");
    Console.WriteLine($"Digest: {crypto?.MessageDigestStatus}");
    Console.WriteLine($"Chain: {crypto?.CertificateChainStatus}");
    Console.WriteLine($"Revocation: {crypto?.RevocationStatus}");
    Console.WriteLine($"Timestamp: {crypto?.TimestampStatus}");
}

Certificate revocation defaults to NoCheck; the provider does not make network calls unless caller policy enables online revocation:

using System.Security.Cryptography.X509Certificates;

var provider = new PdfPkcsSignatureCryptographyProvider(
    new PdfPkcsSignatureValidationOptions {
        RevocationMode = X509RevocationMode.Online,
        UrlRetrievalTimeout = TimeSpan.FromSeconds(10)
    });

The PDF core owns byte-range validation, exact signed-byte extraction, signature metadata, document permissions, and revision analysis. This package owns CMS signature math, signed attributes, certificate chains, timestamps, and revocation policy. RFC 3161 token validation uses the typed BCL API on .NET 8 and later; older targets report that timestamp dimension as indeterminate.

Dependency footprint

  • External: System.Security.Cryptography.Pkcs for CMS/PKCS operations.
  • OfficeIMO: OfficeIMO.Pdf owns signature discovery, signed-byte extraction, permissions, and revision analysis.

See the complete OfficeIMO package map for related formats and conversion paths.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 is compatible.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
2.0.1 123 7/14/2026
2.0.0 119 7/14/2026