NSign.BouncyCastle 1.2.0

.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. 
dotnet add package NSign.BouncyCastle --version 1.2.0
                    


                    

                
NuGet\Install-Package NSign.BouncyCastle -Version 1.2.0
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="NSign.BouncyCastle" Version="1.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="NSign.BouncyCastle" Version="1.2.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="NSign.BouncyCastle" />
                    


                            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 NSign.BouncyCastle --version 1.2.0
                    


                    

                
#r "nuget: NSign.BouncyCastle, 1.2.0"
#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 NSign.BouncyCastle@1.2.0
#: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=NSign.BouncyCastle&version=1.2.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=NSign.BouncyCastle&version=1.2.0
                    


                            Install as a Cake Tool

NSign extensions using BouncyCastle

This library must be used together with other NSign libraries. It provides support for signatures and signature verifications for EdDSA using curve edwards25519 [^1].

Usage

Signature provider for EdDSA using cure edwards 25519

var provider = new EdDsaEdwards25519SignatureProvider(
	privateKey,
	publicKey,
	"the-key-id"));

Here, privateKey and publicKey are instances of Ed25519PrivateKeyParameters and Ed25519PublicKeyParameters from the BouncyCastle.Cryptography package respectively.

If you have the keys in PEM-formatted files, you can use the PemReader from the same BouncyCastle package to read those keys. If you have a .pfx or a .cer file, you can use openssl to extract the keys. For instance:

# Extract the ed25519 private key from a .pfx file holding an ed25519 private key:
openssl pkcs12 -in my.pfx -nocerts -nodes -out my-priv.pem

# Extract the public key from the above extracted private key
openssl pkey -in my-priv.pem -pubout -out my-pub.pem

## OR, if you just have the public key in a certificate file:
openssl x509 -in my.cer -pubkey -nocert -out my-pub.pem

Make sure to consult the documentation of your openssl installation for more details.

Further Information

See also:

[^1]: See section EdDSA Using Curve edwards25519 of HTTP Message Signatures (RFC 9421), https://www.rfc-editor.org/rfc/rfc9421.html#name-eddsa-using-curve-edwards25

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 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.  net10.0 was computed.  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 was computed.  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
1.2.0 142 7/14/2025
1.1.5 111 7/4/2025
1.1.4 154 6/2/2025
1.1.3 287 3/18/2025
1.1.2 301 2/11/2025
1.1.1 1,746 11/21/2024
1.1.0 241 11/12/2024
1.0.4 176 8/26/2024
1.0.3 7,740 6/17/2024
1.0.2 132 5/15/2024
1.0.1 171 3/20/2024
1.0.0 181 2/20/2024
0.19.3 157 2/13/2024
0.19.2 301 11/27/2023
0.19.1 187 10/9/2023