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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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News
Release
23 September, 2025
New Releases: Bouncy Castle Java 1.82 and Bouncy Castle Java LTS 2.73.9
The Bouncy Castle team is pleased to announce the release of Bouncy Castle Ja...
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Post-Quantum Cryptography
Tech Update
Ejbca
Signserver
10 September, 2025
OpenSSF Podcast – Racing Against Quantum: The Urgent Migration to Post-Quantum Cryptography
Tomas Gustavsson and David Hook from Keyfactor join the “What’s in the SOSS”...
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Java LTS
Release
27 August, 2025
New Release: Bouncy Castle Java LTS 2.73.8
We are pleased to announce the availability of Bouncy Castle Java LTS 2.73.8,...
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Implementing Cryptography
Signing
Tech Update
Ejbca
Signserver
26 August, 2025
#KEYMASTER: Stateless PQC Digital Signatures: Insights into ML-DSA & SLH-DSA
In this #KEYMASTER episode, David Hook, VP of Software Engineering for Bouncy...
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Java FIPS
Release
22 August, 2025
Update about Release – Bouncy Castle Java FIPS 2.1.1
We would also like to inform you that official CVEs have now been issued for...
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