SAP-samples / optimizing-hash-based-signatures-java

Explores and evaluates optimizations for the hash-based signature schemes XMSS, LMS, and SPHINCS+ in BouncyCastle. Integrates hardware acceleration and other software optimizations and provides benchmark tooling and results.

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Optimizing Hash-Based Signatures in Java

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WARNING: This project is intended for evaluation purposes only and MUST NOT be used in any productive environment.

Description

This project explores and evaluates optimizations for the hash-based signature schemes XMSS, LMS, and SPHINCS+ in BouncyCastle. It integrates hardware acceleration and other software optimizations and provides benchmark tooling and results.

The project consists of the following subprojects:

bcpqc

Fork of BouncyCastle's implementation of XMSS, LMS, and SPHINCS+. Integrates parameter sets specified in NIST SP 800-208, optimized hash function implementations, parallelized hash tree traversal, and implementations of WOTS-BR and WOTS+C.

pq-sig-benchmark

Benchmarking tools for bcpqc.

jni-hash

Provides access to native hash implementations via the Java Native Interface (JNI). Required for the JNI hashing providers in bcpqc.

jdk-patch

A patch for OpenJDK 18 to allow direct access to the SHA256 implementation and implement intrinsics for Haraka.

jni-transfer-benchmark

A independent project to benchmark different strategies to pass data between Java and native code.

Requirements

See individual subprojects.

Download and Installation

See the individual repositories. In pq-sig-benchmark, doc/aws-setup.md describes our benchmarking setup on AWS. This can be taken as a guideline on how to install all required parts.

How to obtain support

Create an issue in this repository if you find a bug or have questions about the content.

Contributing

If you wish to contribute code, offer fixes or improvements, please send a pull request. Due to legal reasons, contributors will be asked to accept a DCO when they create the first pull request to this project. This happens in an automated fashion during the submission process. SAP uses the standard DCO text of the Linux Foundation.

License

Copyright (c) 2023 SAP SE or an SAP affiliate company. All rights reserved. This project is licensed under the Apache Software License, version 2.0 except as noted otherwise in the LICENSE file.

About

Explores and evaluates optimizations for the hash-based signature schemes XMSS, LMS, and SPHINCS+ in BouncyCastle. Integrates hardware acceleration and other software optimizations and provides benchmark tooling and results.

License:Apache License 2.0


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