OpenSSL VS GnuTLS

Compare OpenSSL vs GnuTLS and see what are their differences.

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OpenSSL GnuTLS
150 -
24,142 3
1.5% -
9.9 0.0
7 days ago almost 13 years ago
C C
Apache License 2.0 GNU General Public License v3.0 only
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

OpenSSL

Posts with mentions or reviews of OpenSSL. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-26.
  • RVM Ruby 2.6.0 — built with custom openssl version on Ubuntu 22.04
    2 projects | dev.to | 26 Apr 2024
    ENV OPENSSL_PREFIX=/opt/openssl ENV SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt WORKDIR /tmp RUN git clone --branch OpenSSL_1_0_2n https://github.com/openssl/openssl.git RUN cd openssl RUN ./config shared --prefix=$OPENSSL_PREFIX --openssldir=$OPENSSL_PREFIX/ssl RUN make RUN make install RUN rvm install 2.6.0 -C --with-openssl-dir=$OPENSSL_PREFIX ENV PATH /usr/local/rvm/bin:$PATH RUN rvm --default use ruby-2.6.0 ENV PATH /usr/local/rvm/bin:/usr/local/rvm/rubies/ruby-2.6.0/bin:$PATH ENV GEM_HOME /usr/local/rvm/rubies/ruby-2.6.0/lib/ruby/gems/2.6.0
  • Heartbleed and XZ Backdoor Learnings: Open Source Infrastructure Can Be Improved Efficiently With Moderate Funding
    2 projects | dev.to | 7 Apr 2024
    Today, April 7th, 2024, marks the 10-year anniversary since CVE-2014-0160 was published. This security vulnerability known as "Heartbleed" was a flaw in the OpenSSL cryptography software, the most popular option to implement Transport Layer Security (TLS). In more layman's terms, if you type https:// in your browser address bar, chances are high that you are interacting with OpenSSL.
  • Ask HN: How does the xz backdoor replace RSA_public_decrypt?
    1 project | news.ycombinator.com | 1 Apr 2024
    At this point I pretty much understand the entire process on how the xz backdoor came to be: its execution stages, extraction from binary "test" files etc. But one thing puzzles me: how can the ifunc mechanism be used to replace something like RSA_public_decrypt? Granted this probably stems from my lack of understanding of ifunc, but I was under the impression that in order for the ifunc mechanism to work in your code, you have to explicitly mark specific function with multiple implementations with __attribute__ ((ifunc ("the_resolver_function"))). Looking at the source code of the RSA function in question, ifunc attribute isn't present:

    https://github.com/openssl/openssl/blob/master/crypto/rsa/rsa_crpt.c#L51

    So how does the backdoor actually replace the call? Does this means that the ifunc mechanism can be used to override pretty much anything on the system?

  • Use of HTTPS Resource Records
    1 project | news.ycombinator.com | 4 Jan 2024
    OpenSSL and Go crypt/tls has no support yet, so none of the webservers that depend on them support it. Apache, Nginx, and Caddy, they all need upstream ECH support first.

    - https://github.com/openssl/openssl/issues/7482

    - https://github.com/openssl/openssl/pull/22938

    - https://github.com/golang/go/issues/63369

  • openssl-3.2.0 released
    1 project | /r/linux | 25 Nov 2023
  • Large performance degradation in OpenSSL 3
    1 project | news.ycombinator.com | 6 Oct 2023
  • OpenSSL 3.2 Alpha 2
    1 project | news.ycombinator.com | 30 Sep 2023
  • Encrypted Client Hello – the last puzzle piece to privacy
    4 projects | news.ycombinator.com | 29 Sep 2023
    If I'm understanding the draft correctly, I think the webserver you're hosting your sites on would need it implemented as it requires private keys and ECH configuration. In the example of nginx since it uses openssl, openssl would need to implement it. I found an issue on their Github but it's still open: https://github.com/openssl/openssl/issues/7482
  • eBPF Practical Tutorial: Capturing SSL/TLS Plain Text Data Using uprobe
    3 projects | dev.to | 19 Sep 2023
  • OpenSSL Versions... whats the plan here
    1 project | /r/Ubuntu | 19 Aug 2023
    I confirmed that the systm was on 1.1.1f with openssl version command. Hmm...... I check the openssl version in the repo with apt list... LOL package names wernt helpful. finally went to the repo pages and found that its still on 1.1.1f, https://launchpad.net/ubuntu/+source/openssl. Meenwhile I looked up the version history on https://www.openssl.org/ and saw that 1.1.1v was released at the beginning of this month... ok. I can understand it it was out less then 30 days. I looked up when f came out, end of MARCH 2020. NEARLY 3-1/2 YEARS

GnuTLS

Posts with mentions or reviews of GnuTLS. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning GnuTLS yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing OpenSSL and GnuTLS you can also consider the following projects:

Crypto++ - free C++ class library of cryptographic schemes

mbedTLS - An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.

LibreSSL - LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.

libsodium - A modern, portable, easy to use crypto library.

GnuPG - Mirror of git://git.gnupg.org/gnupg.git — master branch contains no changes from upstream.

cfssl - CFSSL: Cloudflare's PKI and TLS toolkit

Botan - Cryptography Toolkit

s2n - An implementation of the TLS/SSL protocols