1. Home
  2. /
  3. Download
  4. /
  5. Download Bouncy Castle Java

Download Bouncy Castle for Java

Welcome to the download page for the general edition of Bouncy Castle Java. In addition to the available access options, including GitHub, Maven Central, and direct download, you will find searchable release notes and links to API and other documentation.

 

Bouncy Castle Java
hero-sub-2

GitHub

Access the Bouncy Castle APIs Java package on GitHub, where you can also report issues, join discussions, and contribute to the software.

Download from GitHub

Documentation 

Explore the Bouncy Castle for Java documentation online for concise guidance and examples.

View the Documentation

Join the discussion

You can ask questions and learn from specialists in the Bouncy Castle Java forum on GitHub Discussions. We highly appreciate and value your input.

Go to GitHub Discussions

Report an issue

If you encounter any issues that require attention, feel free to report them in our GitHub repository. 

Go to GitHub to Report an issue

Release notes

Find out detailed information about the latest release and search in older release notes.

Go to Release notes

Beta releases

The current working betas, when available, for the next release for JDK 1.8 and later can be found here. If you need a beta to be made available for another version of Java please ask by emailing: [email protected].

Download the latest Beta release

Donate to support the Bouncy Castle APIs

Supporting Bouncy Castle is now a substantial effort, the Java API is now over 300,000 lines, the C# one well past 140,000.

Donate

Bouncy Castle Java Downloads

The latest Bouncy Castle Java release is 1.83.

Except where otherwise stated, this software is distributed under the regular Bouncy Castle license. For full details of other licenses involved, see Third party licenses. 

Distribution Files (JAR and ZIP format)

Compiled classes, sources and JavaDoc for Java 1.8 and later.

Provider bcprov-jdk18on-1.83.jar bcprov-jdk18on-1.83-sources.jar bcprov-jdk18on-1.83-javadoc.jar
ASN.1 Utility Classes bcutil-jdk18on-1.83.jar bcutil-jdk18on-1.83-sources.jar bcutil-jdk18on-1.83-javadoc.jar
PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL bcpkix-jdk18on-1.83.jar bcpkix-jdk18on-1.83-sources.jar bcpkix-jdk18on-1.83-javadoc.jar
SMIME bcmail-jdk18on-1.83.jar bcmail-jdk18on-1.83-sources.jar bcmail-jdk18on-1.83-javadoc.jar
Jakarta SMIME bcjmail-jdk18on-1.83.jar bcjmail-jdk18on-1.83-sources.jar bcjmail-jdk18on-1.83-javadoc.jar
OpenPGP/BCPG bcpg-jdk18on-1.83.jar bcpg-jdk18on-1.83-sources.jar bcpg-jdk18on-1.83-javadoc.jar
DTLS/TLS API/JSSE Provider bctls-jdk18on-1.83.jar bctls-jdk18on-1.83-sources.jar bctls-jdk18on-1.83-javadoc.jar
MLS API bcmls-jdk18on-1.83.jar bcmls-jdk18on-1.83-sources.jar bcmls-jdk18on-1.83-javadoc.jar
Test Classes bctest-jdk18on-1.83.jar    
Core Crypto   lcrypto-jdk18on-1.83.tar.gz lcrypto-jdk18on-1.83.zip 

Note: the compiled jar files in this distribution are all multi-release, if you need a version specific to Java 1.8, we recommend using the JDK 1.5 to JDK 1.8 release.

Compiled classes, sources and JavaDoc for Java 1.5 to Java 1.8.

Provider bcprov-jdk15to18-1.83.jar bcprov-jdk15to18-1.83-sources.jar bcprov-jdk15to18-1.83-javadoc.jar
ASN.1 Utility Classes bcutil-jdk15to18-1.83.jar bcutil-jdk15to18-1.83-sources.jar bcutil-jdk15to18-1.83-javadoc.jar
PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL bcpkix-jdk15to18-1.83.jar bcpkix-jdk15to18-1.83-sources.jar bcpkix-jdk15to18-1.83-javadoc.jar
SMIME bcmail-jdk15to18-1.83.jar bcmail-jdk15to18-1.83-sources.jar bcmail-jdk15to18-1.83-javadoc.jar
Jakarta SMIME bcjmail-jdk15to18-1.83.jar bcjmail-jdk15to18-1.83-sources.jar bcjmail-jdk15to18-1.83-javadoc.jar
OpenPGP/BCPG bcpg-jdk15to18-1.83.jar bcpg-jdk15to18-1.83-sources.jar bcpg-jdk15to18-1.83-javadoc.jar
DTLS/TLS API/JSSE Provider bctls-jdk15to18-1.83.jar bctls-jdk15to18-1.83-sources.jar bctls-jdk15to18-1.83-javadoc.jar
Test Classes bctest-jdk15to18-1.83.jar    
Core Crypto   lcrypto-jdk15to18-1.83.tar.gz lcrypto-jdk15to18-1.83.zip 

Compiled classes, sources and JavaDoc for Java 1.4.

Provider bcprov-jdk14-1.83.jar bcprov-jdk14-1.83-sources.jar bcprov-jdk14-1.83-javadoc.jar
ASN.1 Utility Classes bcutil-jdk14-1.83.jar bcutil-jdk15to18-1.83-sources.jar bcutil-jdk15to18-1.83-javadoc.jar
PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL bcpkix-jdk14-1.83.jar bcpkix-jdk14-1.83-sources.jar bcpkix-jdk14-1.83-javadoc.jar
SMIME bcmail-jdk14-1.83.jar bcmail-jdk14-1.83-sources.jar bcmail-jdk14-1.83-javadoc.jar
OpenPGP/BCPG bcpg-jdk14-1.83.jar bcpg-jdk14-1.83-sources.jar bcpg-jdk14-1.83-javadoc.jar
DTLS/TLS API/JSSE Provider bctls-jdk14-1.83.jar bctls-jdk14-1.83-sources.jar bctls-jdk14-1.83-javadoc.jar
Test Classes bctest-jdk14-1.83.jar    
Core Crypto   lcrypto-jdk14-1.83.tar.gz lcrypto-jdk14-1.83.zip 

Compiled classes, sources and JavaDoc for Java 1.3.

Clean Room JCE jce-jdk13-1.79.jar jce-jdk13-1.79.tar.gz jce-jdk13-1.79.zip
Provider bcprov-jdk13-1.79.jar bcprov-jdk13-1.79.tar.gz bcprov-jdk13-1.79.zip
ASN.1 Utility Classes bcutil-jdk13-1.79.jar bcutil-jdk13-1.79.tar.gz bcutil-jdk13-1.79.zip
PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL bcpkix-jdk13-1.79.jar bcpkix-jdk13-1.79.tar.gz bcpkix-jdk13-1.79.zip
SMIME bcmail-jdk13-1.79.jar bcmail-jdk13-1.79.tar.gz bcmail-jdk13-1.79.zip
OpenPGP/BCPG bcpg-jdk13-1.79.jar bcpg-jdk13-1.79.tar.gz bcpg-jdk13-1.79.zip
Test Classes bctest-jdk13-1.79.jar    
Core Crypto   lcrypto-jdk13-1.79.tar.gz lcrypto-jdk13-1.79.zip

Compiled classes, sources and JavaDoc for Java 1.2.

Clean Room JCE jce-jdk12-1.79.jar jce-jdk12-1.79.tar.gz jce-jdk12-1.79.zip
Provider bcprov-jdk12-1.79.jar    
PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL bcpkix-jdk12-1.79.jar bcpkix-jdk12-1.79.tar.gz bcpkix-jdk12-1.79.zip
OpenPGP/BCPG bcpg-jdk12-1.79.jar bcpg-jdk12-1.79.tar.gz bcpg-jdk12-1.79.zip
Test Classes bctest-jdk12-1.79.jar    
Core Crypto   lcrypto-jdk12-1.79.tar.gz lcrypto-jdk12-1.79.zip 

Compiled classes, sources and JavaDoc for Java 1.1.

Clean Room JCE jce-jdk11-1.79.tar.gz jce-jdk11-1.79.zip
PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL bcpkix-jdk11-1.79.tar.gz bcpkix-jdk11-1.79.zip
OpenPGP/BCPG bcpg-jdk11-1.79.tar.gz bcpg-jdk11-1.79.zip
Core Crypto   lcrypto-jdk11-1.79.tar.gz lcrypto-jdk11-1.79.zip 
Checksums

To confirm the integrity of the distributions, checksums are available:

Download Checksums

Maven Central Signing Key

If you are trying to confirm the signatures for artifacts from Maven Central, you can use the public key linked below.

Download bc_maven_public_key.asc

Release notes

Find out detailed information about the latest Bouncy Castle Java releases and search in older release notes.  

Latest release Release 1.83 Release 1.82 Release 1.81 Release 1.80 Release 1.79 Release 1.78.1 Release 1.78 Release 1.77 Release 1.76 Release 1.75 Release 1.74 Release 1.73 Release 1.72.2 Release 1.72.1 Release 1.72 Release 1.71 Release 1.70 Release 1.69 Release 1.68 Release 1.67 Release 1.66 Release 1.65 Release 1.64 Release 1.63 Release 1.62 Release 1.61 Release 1.60 Release 1.59 Release 1.58 Release 1.57 Release 1.56 Release 1.55 Release 1.54 Release 1.53 Release 1.52 Release 1.51 Release 1.50 Release 1.49 Release 1.48 Release 1.47 Release 1.46 Release 1.45 Release 1.44 Release 1.43 Release 1.42 Release 1.41 Release 1.40 Release 1.39 Release 1.38 Release 1.37 Release 1.36 Release 1.35 Release 1.34 Release 1.33 Release 1.32 Release 1.31 Release 1.30 Release 1.29 Release 1.28 Release 1.27 Release 1.26 Release 1.25 Release 1.24 Release 1.23 Release 1.22 Release 1.21 Release 1.20 Release 1.19 Release 1.18 Release 1.17 Release 1.16 Release 1.15 Release 1.14 Release 1.13 Release 1.12 Release 1.11 Release 1.10 Release 1.09 Release 1.08 Release 1.07 Release 1.06 Release 1.05 Release 1.04 Release 1.03 Release 1.02 Release 1.01 Release 1.00
Release 1.83
27 November, 2025
Defects Fixed Attempting to check a password on a stripped PGP would throw an exception. Checking the password on such a key will now always return false....

Defects Fixed

  • Attempting to check a password on a stripped PGP would throw an exception. Checking the password on such a key will now always return false.
  • Fixed an issue in KangarooTwelve where premature absorption caused erroneous 168-byte padding; absorption is now delayed so correct final-byte padding is applied.
  • BCJSSE: Fix supported_versions creation for renegotiation handshake.
  • (D)TLS: Reneg info now oly offered with pre-1.3.

Additional Features and Functionality

  • A generic "COMPOSITE" algorithm name has been added as a JCA Signature algorithm. The algorithm will identify the composite signature to use from the composite key passed in.
  • The composite signatures implementation has been updated to the final draft and now follows the submitted standard.
  • Support for the generation and use as trust anchors has been added for certificate signatures with id-alg-unsigned as the signature type.
  • Support for CMP direct POP for encryption keys using challenge/response has been added to the CMP/CRMF APIs.
  • Support for SupportedCurves attribute to the BC provider
  • BCJSSE: Added support for SLH-DSA signature schemes in TLS 1.3 per draft-reddy-tls-slhdsa-01.
  • Support has been added for the Java 25 KDF API (current algorithms, PBKDF2, SCRYPT, and HKDF).
  • Support for composite signatures is now included in CMS and timestamping.
  • It is now possible to disable the Lenstra check in RSA where the public key is not available via the system/security property "org.bouncycastle.rsa.no_lenstra_check".
Close