liboqs version 0.9.1 release candidate 1

liboqs version 0.9.1-rc1

About

The Open Quantum Safe (OQS) project has the goal of developing and prototyping quantum-resistant cryptography. More information on OQS can be found on our website: https://openquantumsafe.org/ and on Github at https://github.com/open-quantum-safe/.

liboqs is an open source C library for quantum-resistant cryptographic algorithms. Details about liboqs can be found in README.md. See in particular limitations on intended use.

liboqs can be used with the following Open Quantum Safe application integrations:

• oqs-provider: A standalone prototype OpenSSL 3 provider enabling liboqs-based quantum-safe and hybrid key authentication and exchange for TLS 1.3, X.509 certificate generation and CMS operations.
• OQS-BoringSSL: A prototype integration of liboqs-based authentication and key exchange into TLS 1.3 in our fork of BoringSSL; see https://github.com/open-quantum-safe/boringssl.
• OQS-OpenSSH: A prototype integration of liboqs-based authentication and key exchange into Secure Shell (SSH) version 2 in our fork of OpenSSH; see https://github.com/open-quantum-safe/openssh.

Several demos are available for using the above libraries in applications, including Apache, Chromium, curl, haproxy, nginx, and Wireshark. Performance of liboqs in several settings is measured at https://openquantumsafe.org/benchmarking/.

liboqs can also be used in the following programming languages via language-specific wrappers:

• C++, via https://github.com/open-quantum-safe/liboqs-cpp
• Go, via https://github.com/open-quantum-safe/liboqs-go
• Java, via https://github.com/open-quantum-safe/liboqs-java
• .NET, via https://github.com/open-quantum-safe/liboqs-dotnet
• Python 3, via https://github.com/open-quantum-safe/liboqs-python
• Rust, via https://github.com/open-quantum-safe/liboqs-rust

Release notes

This is release candidate 1 for version 0.9.1 of liboqs. It was released on December 19, 2023.

This release is a security release which fixes potential non-constant-time behaviour in Kyber based on pq-crystals/kyber@dda29cc

What's New

This release continues from the 0.9.0 release of liboqs.

Key encapsulation mechanisms

• Kyber: C, AVX2, and aarch64 implementation

Detailed changelog

• pull kyber from upstream: dda29cc63af721981ee2c831cf00822e69be3220 (#1631) by @dstebila in #1633
• Apply patch to Kyber aarch64 code from PQClean for variable-time division issue -> targeting 0.9.1 by @bhess in #1637

Full Changelog: 0.9.0...0.9.1-rc1