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OQS-OpenSSL_1_1_1-stable snapshot 2021-03

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@dstebila dstebila released this 26 Mar 14:36
· 55 commits to OQS-OpenSSL_1_1_1-stable since this release

OQS-OpenSSL_1_1_1-stable snapshot 2021-03


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: and on Github at

liboqs is an open source C library for quantum-resistant cryptographic algorithms.

open-quantum-safe/openssl is an integration of liboqs into (a fork of) OpenSSL. The goal of this integration is to provide easy prototyping of quantum-resistant cryptography in TLS 1.3, X.509 certificates, CMS, and S/MIME. The integration should not be considered "production quality".

Release notes

This is the 2021-03 snapshot release of OQS-OpenSSL, which was released on March 26, 2021. Its release page on GitHub is This release is intended to be used with liboqs version 0.5.0.

What's New

This is the fifth snapshot release of OQS-OpenSSL_1_1_1-stable. It is based on OpenSSL 1.1.1k.

  • Removes algorithms from NIST PQC Round 2 that did not advance to Round 3: NewHope, ThreeBears, MQDSS, qTesla.
  • Updates algorithms to those used in liboqs 0.5.0, as described in the liboqs release notes.
  • Adds HQC, NTRUPrime.
  • Improvements to continuous integration testing and build process, including building of shared libraries.
  • Change format of hybrid key exchange in TLS 1.3 to follow

Previous release notes