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Download
Download Bouncy Castle Java
Download Bouncy Castle Java FIPS
Download Bouncy Castle Java LTS
Download Bouncy Castle C# .NET
Download Bouncy Castle C# .NET FIPS
Download Bouncy Castle for Kotlin (GitHub)
Documentation
Documentation Bouncy Castle Java
Documentation Bouncy Castle C# .NET
Specification & Interoperability
Object identifiers
Engage
Engage
Contributors
Donate
News
About
About Bouncy Castle
Licenses
FIPS FAQ
Support
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Release
9 June, 2025
Bouncy Castle Releases Java 1.81 and C# .NET 2.6.1
We are happy to announce the latest Bouncy Castle releases: Bouncy Castle Jav...
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Installation & Deployment
Tech Update
Ejbca
Signserver
27 May, 2025
#KEYMASTER: What is Linting in the PKI World?
In this episode, Keyfactor’s Sven Rajala welcomes Mike Kushner, a seaso...
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Blog
21 May, 2025
The Bouncy Castle Project Turns 25: From JCE Jank to Quantum-Ready Royalty
“Still bouncing after 25 years—and now post-quantum certified to keep bouncin...
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DevOps
Installation & Deployment
Tech Update
Ejbca
Signserver
7 May, 2025
#KEYMASTER: About Ephemeral and Short-Lived Certificates
Sven Rajala, International PKI Man of Mystery, and Tomas Gustavsson, Chief PK...
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Post-Quantum Cryptography
Tech Update
Ejbca
Signserver
29 April, 2025
#KEYMASTER: Where we’re at with HSMs and PQC – Testing LMS, ML-DSA, and Beyond
In this session, Tomas Gustavsson, Chief PKI Officer, and Sven Rajala, Intern...
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