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GNU Transport Layer Security Library

GnuTLS is a secure communications library implementing the SSL, TLS, and DTLS protocols and technologies around them. It provides a simple C language application programming interface (API) to access the secure communications protocols, as well as APIs to parse and write X.509, PKCS #12, OpenPGP, and other required structures. It is intended to be portable and efficient with a focus on security and interoperability.

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RSS Recent releases

  •  23 Mar 2013 13:14

    Release Notes: This release adds new features and fixes bugs in the current stable branch. It adds support for the Android system and optimizes certificate handling.

    •  01 Mar 2013 22:04

      Release Notes: This is bugfix release in the current stable branch.

      Release Notes: This is a bugfix release on the current stable branch.

      Release Notes: This release adds support for UCS-2 encoded DNs, improvements to smart card key generation, and a few bugfixes.

      Release Notes: This release includes initial support for the DTLS-SRTP protocol, updates related to the new DANE library, and several simplifications to the existing API.

      RSS Recent comments

      15 May 2007 10:27 free2malloc

      Re: License

      > An SSL/TLS library under the GPL. Yuck!

      > What's the

      > purpose of this except of having a GNU

      > label in front of

      > a SSL library?

      >

      > OpenSSL can do the same, while having a

      > much more

      > reasonable license.

      >

      good point. i say the same about linux, what a

      stupid project, let's just all use windows because it

      works the way we all expect it to.

      pfft...

      14 Dec 2002 09:50 jharr Thumbs up

      Re: License
      TAKE THAT :P

      (to the original poster) Honestly do you have to be that partial to OpenSSL. GPL is about keeping your mind open. OpenSSL has to get some merrit for being one of the first open source SSL implementations, however stuff doesn't get better unless it is challenged. And if OpenSSL gets shot down by GNUTLS because of its speed and reliability, it'll be for a reason. I'm not saying it will, but it could happen.

      >
      > % OpenSSL can do the same, while having
      > % a much more
      > % reasonable license.
      > %
      >
      >
      > resonability is in the eye of the
      > beholder; dismissing
      > something based on your own preferences
      > is a bit
      > silly. some people would prefer a GPL'd
      >
      > implementation.
      >
      > beyond that, OpenSSL is getting rather
      > huge and
      > slow (or so my crypto budies tell me)
      > and a rewrite
      > resulting in a smaller, faster library
      > could be exactly
      > what the doctor ordered for many
      > projects.
      >
      > then again, perhaps those involved in
      > the project
      > simply wanted to write a TLS library for
      > their own
      > satisfaction and education.
      >
      >

      16 Jun 2002 22:46 bug1

      Re: License
      Its questionable wether GPL'ed binaries can link to openssl. The issue is mentioned in the openssl FAQ, however its not as clear cut as they make out.

      openssl is not Free to developers who use the GPL, gnutls is.

      06 Nov 2001 13:26 aseigo

      Re: License

      > OpenSSL can do the same, while having
      > a much more
      > reasonable license.
      >

      resonability is in the eye of the beholder; dismissing
      something based on your own preferences is a bit
      silly. some people would prefer a GPL'd
      implementation.

      beyond that, OpenSSL is getting rather huge and
      slow (or so my crypto budies tell me) and a rewrite
      resulting in a smaller, faster library could be exactly
      what the doctor ordered for many projects.

      then again, perhaps those involved in the project
      simply wanted to write a TLS library for their own
      satisfaction and education.

      06 Nov 2001 11:34 dglaude

      Re: License

      > What's the purpose of this
      > except of having a GNU
      > label in front of a SSL library?

      Good question...

      Maybe someone will be more likely to invest time in contributing to something that will stay free and open rather than something that can/could be used in closed world with private modification distribute as binary.

      Check for GPL in www.openssl.org/suppor...
      and you see the begining of an issue with openssl.

      Does anybody know GPL program that use OpenSSL
      and do they have a GPL exception stated?

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