System.Security.Cryptography.Pkcs 5.0.0-preview.1.20120.5

Prefix Reserved
This is a prerelease version of System.Security.Cryptography.Pkcs.
There is a newer version of this package available.
See the version list below for details.

Requires NuGet 2.12 or higher.

dotnet add package System.Security.Cryptography.Pkcs --version 5.0.0-preview.1.20120.5                
NuGet\Install-Package System.Security.Cryptography.Pkcs -Version 5.0.0-preview.1.20120.5                
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="System.Security.Cryptography.Pkcs" Version="5.0.0-preview.1.20120.5" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add System.Security.Cryptography.Pkcs --version 5.0.0-preview.1.20120.5                
#r "nuget: System.Security.Cryptography.Pkcs, 5.0.0-preview.1.20120.5"                
#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.
// Install System.Security.Cryptography.Pkcs as a Cake Addin
#addin nuget:?package=System.Security.Cryptography.Pkcs&version=5.0.0-preview.1.20120.5&prerelease

// Install System.Security.Cryptography.Pkcs as a Cake Tool
#tool nuget:?package=System.Security.Cryptography.Pkcs&version=5.0.0-preview.1.20120.5&prerelease                

Provides support for PKCS and CMS algorithms.

Commonly Used Types:

When using NuGet 3.x this package requires at least version 3.4.

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 was computed.  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. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 is compatible.  netcoreapp2.2 was computed.  netcoreapp3.0 is compatible.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.3 is compatible.  netstandard1.4 was computed.  netstandard1.5 was computed.  netstandard1.6 was computed.  netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net46 is compatible.  net461 is compatible.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Universal Windows Platform uap was computed.  uap10.0 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 (270)

Showing the top 5 NuGet packages that depend on System.Security.Cryptography.Pkcs:

Package Downloads

Provides classes to support the creation and validation of XML digital signatures. The classes in this namespace implement the World Wide Web Consortium Recommendation, "XML-Signature Syntax and Processing", described at Commonly Used Types: System.Security.Cryptography.Xml.CipherData System.Security.Cryptography.Xml.CipherReference System.Security.Cryptography.Xml.DataObject System.Security.Cryptography.Xml.DataReference System.Security.Cryptography.Xml.DSAKeyValue System.Security.Cryptography.Xml.EncryptedData System.Security.Cryptography.Xml.EncryptedKey System.Security.Cryptography.Xml.EncryptedReference System.Security.Cryptography.Xml.EncryptedType System.Security.Cryptography.Xml.EncryptedXml System.Security.Cryptography.Xml.EncryptionMethod System.Security.Cryptography.Xml.EncryptionProperty System.Security.Cryptography.Xml.EncryptionPropertyCollection System.Security.Cryptography.Xml.KeyInfo System.Security.Cryptography.Xml.KeyInfoClause System.Security.Cryptography.Xml.KeyInfoEncryptedKey System.Security.Cryptography.Xml.KeyInfoName System.Security.Cryptography.Xml.KeyInfoNode System.Security.Cryptography.Xml.KeyInfoRetrievalMethod System.Security.Cryptography.Xml.KeyInfoX509Data System.Security.Cryptography.Xml.KeyReference System.Security.Cryptography.Xml.Reference System.Security.Cryptography.Xml.ReferenceList System.Security.Cryptography.Xml.RSAKeyValue System.Security.Cryptography.Xml.Signature System.Security.Cryptography.Xml.SignedInfo System.Security.Cryptography.Xml.SignedXml System.Security.Cryptography.Xml.Transform System.Security.Cryptography.Xml.TransformChain System.Security.Cryptography.Xml.XmlDecryptionTransform System.Security.Cryptography.Xml.XmlDsigBase64Transform System.Security.Cryptography.Xml.XmlDsigC14NTransform System.Security.Cryptography.Xml.XmlDsigC14NWithCommentsTransform System.Security.Cryptography.Xml.XmlDsigEnvelopedSignatureTransform System.Security.Cryptography.Xml.XmlDsigExcC14NTransform System.Security.Cryptography.Xml.XmlDsigExcC14NWithCommentsTransform System.Security.Cryptography.Xml.XmlDsigXPathTransform System.Security.Cryptography.Xml.XmlDsigXsltTransform System.Security.Cryptography.Xml.XmlLicenseTransform


MimeKit is an Open Source library for creating and parsing MIME, S/MIME and PGP messages on desktop and mobile platforms. It also supports parsing of Unix mbox files. Unlike any other .NET MIME parser, MimeKit's parser does not need to parse string input nor does it use a TextReader. Instead, it parses raw byte streams, thus allowing it to better support undeclared 8bit text in headers as well as message bodies. It also means that MimeKit's parser is significantly faster than other .NET MIME parsers. MimeKit's parser also uses a real tokenizer when parsing the headers rather than regex or string.Split() like most other .NET MIME parsers. This means that MimeKit is much more RFC-compliant than any other .NET MIME parser out there, including the commercial implementations. In addition to having a far superior parser implementation, MimeKit's object tree is not a derivative of System.Net.Mail objects and thus does not suffer from System.Net.Mail's limitations. API documentation can be found on the web at For those that need SMTP, POP3 or IMAP support, check out


A spreadsheet library for .NET framework and .NET core


NuGet's understanding of packages. Reading nuspec, nupkgs and package signing.


This package contains the Microsoft.Build.Tasks assembly which implements the commonly used tasks of MSBuild.

GitHub repositories (50)

Showing the top 5 popular GitHub repositories that depend on System.Security.Cryptography.Pkcs:

Repository Stars
PowerShell for every system!
a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.
The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.
EventStoreDB, the event-native database. Designed for Event Sourcing, Event-Driven, and Microservices architectures
The Runner for GitHub Actions :rocket:
Version Downloads Last updated
9.0.0-preview.6.24327.7 1,867 7/9/2024
9.0.0-preview.5.24306.7 5,663 6/11/2024
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8.0.0 24,364,756 11/14/2023
8.0.0-rc.2.23479.6 488,558 10/10/2023
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8.0.0-preview.7.23375.6 169,763 8/8/2023
8.0.0-preview.6.23329.7 10,613 7/11/2023
8.0.0-preview.5.23280.8 20,803 6/13/2023
8.0.0-preview.4.23259.5 150,693 5/16/2023
8.0.0-preview.3.23174.8 34,926 4/11/2023
8.0.0-preview.2.23128.3 21,737 3/14/2023
8.0.0-preview.1.23110.8 65,074 2/21/2023
7.0.3 11,672,099 6/22/2023
7.0.2 12,833,013 6/13/2023
7.0.1 1,545,623 2/14/2023
7.0.0 21,326,457 11/7/2022
7.0.0-rc.2.22472.3 65,070 10/11/2022
7.0.0-rc.1.22426.10 70,151 9/14/2022
7.0.0-preview.7.22375.6 17,368 8/9/2022
7.0.0-preview.6.22324.4 20,954 7/12/2022
7.0.0-preview.5.22301.12 2,664 6/14/2022
7.0.0-preview.4.22229.4 18,033 5/10/2022
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7.0.0-preview.2.22152.2 19,723 3/14/2022
7.0.0-preview.1.22076.8 5,388 2/17/2022
6.0.4 11,003,236 6/22/2023
6.0.3 10,345,192 6/13/2023
6.0.2 3,617,125 2/14/2023
6.0.1 66,008,984 5/10/2022
6.0.0 49,157,941 11/8/2021
6.0.0-rc.2.21480.5 20,763 10/12/2021
6.0.0-rc.1.21451.13 14,998 9/14/2021
6.0.0-preview.7.21377.19 18,723 8/10/2021
6.0.0-preview.6.21352.12 7,062 7/14/2021
6.0.0-preview.5.21301.5 7,678 6/15/2021
6.0.0-preview.4.21253.7 23,346 5/24/2021
6.0.0-preview.3.21201.4 10,064 4/8/2021
6.0.0-preview.2.21154.6 19,519 3/11/2021
6.0.0-preview.1.21102.12 10,107 2/12/2021
5.0.1 11,675,503 12/8/2020
5.0.0 144,228,168 11/9/2020
5.0.0-rc.2.20475.5 19,008 10/13/2020
5.0.0-rc.1.20451.14 60,684 9/14/2020
5.0.0-preview.8.20407.11 81,307 8/25/2020
5.0.0-preview.7.20364.11 26,146 7/21/2020
5.0.0-preview.6.20305.6 11,267 6/25/2020
5.0.0-preview.5.20278.1 4,695 6/10/2020
5.0.0-preview.4.20251.6 11,705 5/18/2020
5.0.0-preview.3.20214.6 1,351,045 4/23/2020
5.0.0-preview.2.20160.6 26,604 4/2/2020
5.0.0-preview.1.20120.5 3,656 3/16/2020
4.7.0 147,075,991 12/3/2019
4.7.0-preview3.19551.4 19,783 11/13/2019
4.7.0-preview2.19523.17 16,122 11/1/2019
4.7.0-preview1.19504.10 12,244 10/15/2019
4.6.0 6,183,951 9/23/2019
4.6.0-rc1.19456.4 61,004 9/16/2019
4.6.0-preview9.19421.4 7,098 9/4/2019
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4.6.0-preview7.19362.9 85,053 7/23/2019
4.6.0-preview6.19303.8 77,450 6/12/2019
4.6.0-preview6.19264.9 681 9/4/2019
4.6.0-preview5.19224.8 24,245 5/6/2019
4.6.0-preview4.19212.13 2,194 4/18/2019
4.6.0-preview3.19128.7 8,304 3/6/2019
4.6.0-preview.19073.11 15,567 1/29/2019
4.6.0-preview.18571.3 13,573 12/3/2018
4.5.2 22,861,579 1/8/2019
4.5.1 10,537,532 10/1/2018
4.5.0 250,559,332 5/29/2018
4.5.0-rc1 225,650 5/6/2018
4.5.0-preview2-26406-04 266,114 4/10/2018
4.5.0-preview1-26216-02 54,509 2/26/2018
4.5.0-preview1-25914-04 290,034 11/15/2017
4.4.0 5,725,794 8/11/2017
4.4.0-preview2-25405-01 2,600 6/27/2017
4.4.0-preview1-25305-02 7,145 5/9/2017
4.3.0 9,712,200 11/15/2016
4.3.0-preview1-24530-04 12,896 10/24/2016
4.0.0 146,639 6/27/2016