Welcome to the home of the Legion of the Bouncy Castle and its FIPS-certified open-source cryptographic APIs for Java and C#.
Download the Bouncy Castle APIs for Java, Java FIPS, Java LTS, C# .NET, C# .NET FIPS or the Kotlin version.
Access necessary resources for your project here: installation instructions, configuration guides, test examples, and much more.
You can ask your questions and learn from specialists in the Bouncy Castle forum on GitHub Discussions.
We have been providing cryptography solutions for over 20 years, offering FIPS certifications, LTS releases, and quantum-ready support to meet everyone's needs.
Years of history
Years FIPS certified
Downloads per month
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