System.Security.Cryptography.ProtectedData
9.0.5
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 4.6.2
This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher.
There is a newer prerelease version of this package available.
See the version list below for details.
See the version list below for details.
dotnet add package System.Security.Cryptography.ProtectedData --version 9.0.5
NuGet\Install-Package System.Security.Cryptography.ProtectedData -Version 9.0.5
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.ProtectedData" Version="9.0.5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="System.Security.Cryptography.ProtectedData" Version="9.0.5" />
<PackageReference Include="System.Security.Cryptography.ProtectedData" />
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 System.Security.Cryptography.ProtectedData --version 9.0.5
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: System.Security.Cryptography.ProtectedData, 9.0.5"
#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.
#addin nuget:?package=System.Security.Cryptography.ProtectedData&version=9.0.5
#tool nuget:?package=System.Security.Cryptography.ProtectedData&version=9.0.5
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
About
System.Security.Cryptography.ProtectedData offers a simplified interface for utilizing Microsoft Windows DPAPI's CryptProtectData and CryptUnprotectData functions.
Note: Since it relies on Windows DPAPI, this package is only supported on Windows platforms. For more complex cryptographic operations or cross-platform support, consider the System.Security.Cryptography namespace.
Key Features
- Built upon the robust and secure Windows Data Protection API (DPAPI).
- Data can be protected either for current process or for any process on the machine.
- Scope of protection can be defined either to the current user or the local machine.
How to Use
Utilizing this package is quite simple, and it mainly revolves around two methods: Protect and Unprotect.
Here, originalData is the data you want to protect, optionalEntropy is an additional byte array used to increase encryption complexity, and DataProtectionScope specifies whether the data protection should apply to the current user or the machine.
using System.Security.Cryptography;
using System.Text;
byte[] originalData = Encoding.UTF8.GetBytes("This is a secret");
byte[] optionalEntropy = new byte[64];
Random.Shared.NextBytes(optionalEntropy);
// To protect:
byte[] encryptedData = ProtectedData.Protect(
originalData,
optionalEntropy,
DataProtectionScope.CurrentUser);
// To unprotect:
byte[] decryptedData = ProtectedData.Unprotect(
encryptedData,
optionalEntropy,
DataProtectionScope.CurrentUser);
Main Types
The main type provided by this library is:
System.Security.Cryptography.ProtectedData
Additional Documentation
Related Packages
- PKCS and CMS algorithms: System.Security.Cryptography.Pkcs
Feedback & Contributing
System.Security.Cryptography.ProtectedData is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.
| Product | Versions 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 is compatible. 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. |
| .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 is compatible. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
| MonoAndroid | monoandroid was computed. monoandroid10 is compatible. |
| MonoMac | monomac was computed. |
| MonoTouch | monotouch was computed. monotouch10 is compatible. |
| Tizen | tizen40 was computed. tizen60 was computed. |
| Xamarin.iOS | xamarinios was computed. xamarinios10 is compatible. |
| Xamarin.Mac | xamarinmac was computed. xamarinmac20 is compatible. |
| Xamarin.TVOS | xamarintvos was computed. xamarintvos10 is compatible. |
| Xamarin.WatchOS | xamarinwatchos was computed. xamarinwatchos10 is compatible. |
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
-
.NETFramework 4.6.2
- No dependencies.
-
.NETStandard 2.0
- System.Memory (>= 4.5.5)
-
net8.0
- No dependencies.
-
net9.0
- No dependencies.
NuGet packages (243)
Showing the top 5 NuGet packages that depend on System.Security.Cryptography.ProtectedData:
| Package | Downloads |
|---|---|
|
System.Configuration.ConfigurationManager
Provides types that support using XML configuration files (app.config). This package exists only to support migrating existing .NET Framework code that already uses System.Configuration. When writing new code, use another configuration system instead, such as Microsoft.Extensions.Configuration. |
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Microsoft.Identity.Client.Extensions.Msal
This package contains the public client (desktop) caching to Microsoft Authentication Library for .NET (MSAL.NET) |
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Microsoft.VisualStudio.Web.CodeGenerators.Mvc
Code Generators for ASP.NET Core MVC. Contains code generators for MVC Controllers and Views. |
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Microsoft.VisualStudio.Web.CodeGeneration.Design
Code Generation tool for ASP.NET Core. Contains the dotnet-aspnet-codegenerator command used for generating controllers and views. |
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Microsoft.VisualStudio.Web.CodeGeneration
Contains the CodeGenCommand that finds the appropriate code generator and invokes it from project dependencies. |
GitHub repositories (68)
Showing the top 20 popular GitHub repositories that depend on System.Security.Cryptography.ProtectedData:
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BeyondDimension/SteamTools
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Jackett/Jackett
API Support for your favorite torrent trackers
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JustArchiNET/ArchiSteamFarm
C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.
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mRemoteNG/mRemoteNG
mRemoteNG is the next generation of mRemote, open source, tabbed, multi-protocol, remote connections manager.
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Azure/azure-sdk-for-net
This repository is for active development of the Azure SDK for .NET. For consumers of the SDK we recommend visiting our public developer docs at https://learn.microsoft.com/dotnet/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-net.
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win-acme/win-acme
A simple ACME client for Windows (for use with Let's Encrypt et al.)
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actions/runner
The Runner for GitHub Actions :rocket:
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microsoft/perfview
PerfView is a CPU and memory performance-analysis tool
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ravendb/ravendb
ACID Document Database
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GlitchEnzo/NuGetForUnity
A NuGet Package Manager for Unity
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cyanfish/naps2
Scan documents to PDF and more, as simply as possible.
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dotnet/sdk
Core functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI
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reactiveui/Akavache
An asynchronous, persistent key-value store created for writing desktop and mobile applications, based on SQLite3. Akavache is great for both storing important data as well as cached local data that expires.
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googleprojectzero/sandbox-attacksurface-analysis-tools
Set of tools to analyze Windows sandboxes for exposed attack surface.
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dotnet/wcf
This repo contains the client-oriented WCF libraries that enable applications built on .NET Core to communicate with WCF services.
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CoreWCF/CoreWCF
Main repository for the Core WCF project
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microsoft/PowerApps-Samples
Sample code for Power Apps, including Dataverse, model-driven apps, canvas apps, Power Apps component framework, portals, and AI Builder.
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webprofusion/certify
Professional ACME Client for Windows. Certificate Management UI, powered by Let's Encrypt and compatible with all ACME v2 CAs. Used by over 150,000 organisations. Remember to Star us! Download from certifytheweb.com
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CollapseLauncher/Collapse
An Advanced Launcher for miHoYo/HoYoverse Games
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| Version | Downloads | Last updated | |
|---|---|---|---|
| 10.0.0-preview.4.25258.110 | 0 | 5/12/2025 | |
| 10.0.0-preview.3.25171.5 | 9,683 | 4/10/2025 | |
| 10.0.0-preview.2.25163.2 | 8,688 | 3/18/2025 | |
| 10.0.0-preview.1.25080.5 | 7,808 | 2/25/2025 | |
| 9.0.5 | 0 | 5/13/2025 | |
| 9.0.4 | 1,004,933 | 4/8/2025 | |
| 9.0.3 | 1,317,772 | 3/11/2025 | |
| 9.0.2 | 1,992,714 | 2/11/2025 | |
| 9.0.1 | 2,419,796 | 1/14/2025 | |
| 9.0.0 | 8,245,516 | 11/12/2024 | |
| 9.0.0-rc.2.24473.5 | 97,298 | 10/8/2024 | |
| 9.0.0-rc.1.24431.7 | 39,568 | 9/10/2024 | |
| 9.0.0-preview.7.24405.7 | 31,296 | 8/13/2024 | |
| 9.0.0-preview.6.24327.7 | 36,666 | 7/9/2024 | |
| 9.0.0-preview.5.24306.7 | 20,527 | 6/11/2024 | |
| 9.0.0-preview.4.24266.19 | 17,126 | 5/21/2024 | |
| 9.0.0-preview.3.24172.9 | 29,466 | 4/11/2024 | |
| 9.0.0-preview.2.24128.5 | 33,141 | 3/12/2024 | |
| 9.0.0-preview.1.24080.9 | 53,808 | 2/13/2024 | |
| 8.0.0 | 131,628,312 | 11/14/2023 | |
| 8.0.0-rc.2.23479.6 | 242,322 | 10/10/2023 | |
| 8.0.0-rc.1.23419.4 | 143,374 | 9/12/2023 | |
| 8.0.0-preview.7.23375.6 | 65,671 | 8/8/2023 | |
| 8.0.0-preview.6.23329.7 | 38,556 | 7/11/2023 | |
| 8.0.0-preview.5.23280.8 | 38,621 | 6/13/2023 | |
| 8.0.0-preview.4.23259.5 | 82,890 | 5/16/2023 | |
| 8.0.0-preview.3.23174.8 | 76,461 | 4/11/2023 | |
| 8.0.0-preview.2.23128.3 | 44,876 | 3/14/2023 | |
| 8.0.0-preview.1.23110.8 | 59,964 | 2/21/2023 | |
| 7.0.1 | 8,798,299 | 2/14/2023 | |
| 7.0.0 | 70,837,437 | 11/7/2022 | |
| 7.0.0-rc.2.22472.3 | 166,285 | 10/11/2022 | |
| 7.0.0-rc.1.22426.10 | 142,785 | 9/14/2022 | |
| 7.0.0-preview.7.22375.6 | 35,505 | 8/9/2022 | |
| 7.0.0-preview.6.22324.4 | 40,876 | 7/12/2022 | |
| 7.0.0-preview.5.22301.12 | 45,430 | 6/14/2022 | |
| 7.0.0-preview.4.22229.4 | 32,040 | 5/10/2022 | |
| 7.0.0-preview.3.22175.4 | 12,786 | 4/13/2022 | |
| 7.0.0-preview.2.22152.2 | 27,554 | 3/14/2022 | |
| 7.0.0-preview.1.22076.8 | 24,514 | 2/17/2022 | |
| 6.0.0 | 415,138,029 | 11/8/2021 | |
| 6.0.0-rc.2.21480.5 | 56,021 | 10/12/2021 | |
| 6.0.0-rc.1.21451.13 | 75,835 | 9/14/2021 | |
| 6.0.0-preview.7.21377.19 | 67,975 | 8/10/2021 | |
| 6.0.0-preview.6.21352.12 | 56,673 | 7/14/2021 | |
| 6.0.0-preview.5.21301.5 | 43,535 | 6/15/2021 | |
| 6.0.0-preview.4.21253.7 | 67,529 | 5/24/2021 | |
| 6.0.0-preview.3.21201.4 | 220,043 | 4/8/2021 | |
| 6.0.0-preview.2.21154.6 | 67,750 | 3/11/2021 | |
| 6.0.0-preview.1.21102.12 | 115,436 | 2/12/2021 | |
| 5.0.0 | 323,297,654 | 11/9/2020 | |
| 5.0.0-rc.2.20475.5 | 96,787 | 10/13/2020 | |
| 5.0.0-rc.1.20451.14 | 57,068 | 9/14/2020 | |
| 5.0.0-preview.8.20407.11 | 162,129 | 8/25/2020 | |
| 5.0.0-preview.7.20364.11 | 112,833 | 7/21/2020 | |
| 5.0.0-preview.6.20305.6 | 280,091 | 6/25/2020 | |
| 5.0.0-preview.5.20278.1 | 22,717 | 6/10/2020 | |
| 5.0.0-preview.4.20251.6 | 97,378 | 5/18/2020 | |
| 5.0.0-preview.3.20214.6 | 70,677 | 4/23/2020 | |
| 5.0.0-preview.2.20160.6 | 81,244 | 4/2/2020 | |
| 5.0.0-preview.1.20120.5 | 59,988 | 3/16/2020 | |
| 4.7.0 | 765,996,372 | 12/3/2019 | |
| 4.7.0-preview3.19551.4 | 70,250 | 11/13/2019 | |
| 4.7.0-preview2.19523.17 | 24,109 | 11/1/2019 | |
| 4.7.0-preview1.19504.10 | 26,773 | 10/15/2019 | |
| 4.6.0 | 54,437,862 | 9/23/2019 | |
| 4.6.0-rc1.19456.4 | 67,096 | 9/16/2019 | |
| 4.6.0-preview9.19421.4 | 25,474 | 9/4/2019 | |
| 4.6.0-preview9.19416.11 | 1,072 | 9/4/2019 | |
| 4.6.0-preview8.19405.3 | 99,509 | 8/13/2019 | |
| 4.6.0-preview7.19362.9 | 267,700 | 7/23/2019 | |
| 4.6.0-preview6.19303.8 | 1,408,985 | 6/12/2019 | |
| 4.6.0-preview6.19264.9 | 1,153 | 9/4/2019 | |
| 4.6.0-preview5.19224.8 | 60,238 | 5/6/2019 | |
| 4.6.0-preview4.19212.13 | 15,221 | 4/18/2019 | |
| 4.6.0-preview3.19128.7 | 72,358 | 3/6/2019 | |
| 4.6.0-preview.19073.11 | 59,924 | 1/29/2019 | |
| 4.6.0-preview.18571.3 | 127,182 | 12/3/2018 | |
| 4.5.0 | 683,323,688 | 5/29/2018 | |
| 4.5.0-rc1 | 145,705 | 5/6/2018 | |
| 4.5.0-preview2-26406-04 | 503,630 | 4/10/2018 | |
| 4.5.0-preview1-26216-02 | 483,943 | 2/26/2018 | |
| 4.5.0-preview1-25914-04 | 680,596 | 11/15/2017 | |
| 4.4.0 | 512,011,740 | 8/11/2017 | |
| 4.4.0-preview2-25405-01 | 150,934 | 6/27/2017 | |
| 4.4.0-preview1-25305-02 | 12,403 | 5/9/2017 | |
| 4.3.0 | 20,184,737 | 11/15/2016 | |
| 4.3.0-preview1-24530-04 | 29,730 | 10/24/2016 | |
| 4.0.0 | 3,232,683 | 6/27/2016 |