BouncyCastle 1.8.5

The Bouncy Castle Crypto package is a C# implementation of cryptographic algorithms and protocols, it was developed by the Legion of the Bouncy Castle, a registered Australian Charity, with a little help! The Legion, and the latest goings on with this package, can be found at []( In addition to providing basic cryptography algorithms, the package also provides support for CMS, TSP, X.509 certificate generation and a variety of other standards such as OpenPGP.

There is a newer version of this package available.
See the version list below for details.
Install-Package BouncyCastle -Version 1.8.5
dotnet add package BouncyCastle --version 1.8.5
<PackageReference Include="BouncyCastle" Version="1.8.5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add BouncyCastle --version 1.8.5
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

This is the final feature release with support for legacy .NET platforms. From 1.9.0 we will be targeting more modern .NET frameworks (see and updating our build and packaging systems. The 1.8.x series will continue to receive bug fixes, but limited new functionality.

Additional Features and Functionality:
- Supported added for encoding and decoding of GOST3410-2012 keys.
- Basic support added for CMP (RFC 4210) and CRMF (RFC 4211), including the PKI archive control.


This package has no dependencies.

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Read more about the GitHub Usage information on our documentation.

Version History

Version Downloads Last updated 49,667 4/8/2020
1.8.5 1,886,890 3/25/2019
1.8.4 727,940 11/2/2018 635,168 10/2/2018
1.8.2 1,484,056 4/14/2018
1.8.1 5,316,246 4/26/2016
1.7.0 2,334,837 4/30/2011