GnuTLS

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GnuTLS
Developer(s) Nikos Mavrogiannopoulos
Simon Josefsson
Stable release

3.2.17 (August 24, 2014; 28 days ago (2014-08-24) [1]) [±]

3.1.26 (August 24, 2014; 28 days ago (2014-08-24) [2]) [±]
Preview release 3.3.7 (August 24, 2014; 28 days ago (2014-08-24) [3]) [±]
Operating system Multi-platform
Type Security library
License LGPLv2.1+
Website gnutls.org

GnuTLS (/ˈɡn ˌt ˌɛl ˈɛs/, the GNU Transport Layer Security Library) is a free software implementation of the SSL, TLS and DTLS protocols. It offers an application programming interface (API) for applications to enable secure communication over their network transport layer, as well as interfaces to access X.509, PKCS #12, OpenPGP and other structures. Although originally created for the GNU Project, its maintainer disassociated it from GNU in December 2012 after disputes with the Free Software Foundation over certain policies.[4]

Features[edit]

GnuTLS consists of:

  • a library that allows client applications to start secure sessions using the available protocols
  • command-line tools, including:
    • an X.509 certificate manager
    • test client and server
    • random key and password generators

As of 2011 administrators can configure Apache web server to use GnuTLS so as to support TLS 1.2.[5]

GnuTLS has the following features:

License and motivation[edit]

The GnuTLS library is licensed under the GNU Lesser General Public License; included applications use the GNU General Public License.

GnuTLS was initially created[by whom?] to allow applications of the GNU Project to use secure protocols such as TLS. Although OpenSSL already existed, OpenSSL's license is not compatible with the GPL;[8] thus software under the GPL, such as GNU software, could not use OpenSSL without making a GPL linking exception.

Deployment[edit]

Software packages using GnuTLS include:[9][not in citation given]

See also[edit]

References[edit]

  1. ^ "GnuTLS". 2014-08-24. Retrieved 2014-09-09. 
  2. ^ "GnuTLS". 2014-08-24. Retrieved 2014-09-09. 
  3. ^ "GnuTLS". 2014-08-24. Retrieved 2014-09-09. 
  4. ^ Nikos Mavrogiannopoulos (2012-12-18). "gnutls is moving". Retrieved 2012-12-11. 
  5. ^ The GNU Transport Layer Security Library
  6. ^ RFC 6091
  7. ^ The GnuTLS Transport Layer Security Library
  8. ^ Mark McLoughlin (2004-06-22). "The OpenSSL License and The GPL". Retrieved 2011-04-06. 
  9. ^ The GNU Transport Layer Security Library

External links[edit]