1 GnuTLS README -- Important introductory notes.
2 Copyright (C) 2000-2012 Free Software Foundation, Inc.
3 See the end of this document for copying conditions.
5 GnuTLS implements the TLS/SSL (Transport Layer Security aka Secure
6 Sockets Layer) protocol. GnuTLS is a GNU project. Additional
7 information can be found at <http://www.gnu.org/software/gnutls/>
8 and <http://www.gnutls.org/>.
13 This README is targeted for users of the library who build from
14 sources but do not necessarily develop. If you are interested
15 in developing and contributing to the GnuTLS project, please
16 see README-alpha and visit
17 http://www.gnu.org/software/gnutls/manual/html_node/Contributing.html.
22 A typical command sequence for building the library is shown below.
23 A complete list of options available for configure can be found
24 by running './configure --help'.
27 ./configure --prefix=/usr
31 The commands above build and install the static archive (libgnutls.a),
32 the shared object (libgnutls.so), and additional binaries such as certtool
35 The library depends on libnettle. Optionally it may use the
37 * p11-kit: for smart card support
38 http://p11-glue.freedesktop.org/p11-kit.html
39 * libtspi: for Trusted Platform Module (TPM) support,
40 http://trousers.sourceforge.net/
41 * libunbound: For DNSSEC/DANE support,
43 * libz: For compression support.
45 * libtasn1: For ASN.1 parsing (a copy is included, if not found)
46 http://www.gnu.org/software/libtasn1/
48 Versions 2.10.3 and prior used libgcrypt as the default cryptographic library.
49 Nettle can be found at http://www.gnu.org/software/nettle/, while
50 p11-kit can be found at <http://p11-glue.freedesktop.org/p11-kit.html>.
52 To configure libnettle for installation and use by GnuTLS, a typical
53 command sequence would be:
56 ./configure --prefix=/usr --disable-openssl --enable-shared
60 For the Nettle project, --enable-shared will instruct automake and
61 friends to build and install both the static archive (libnettle.a)
62 and the shared object (libnettle.so).
64 In case you are compiling for an embedded system, you can disable
65 unneeded features of GnuTLS. In general, it is usually best not to
66 disable anything (for future mailing list questions and possible bugs).
68 Depending on your installation, additional libraries, such as libtasn1
69 and zlib, may be required.
74 See the documentation in doc/ and online at
75 http://www.gnu.org/software/gnutls/manual.
80 See the examples in doc/examples/ and online at 'How To Use GnuTLS in
81 Applications' at http://www.gnu.org/software/gnutls/manual.
86 The project collects and publishes information on past security
87 incidents and vulnerabilities. Open information exchange, including
88 information which is [sometimes] suppressed in non-open or non-free
89 projects, is one of the goals of the GnuTLS project. Please visit
90 http://www.gnu.org/software/gnutls/security.html.
95 The GnuTLS project maintains mailing lists for users, developers, and
96 commits. Please see http://www.gnu.org/software/gnutls/lists.html.
101 Since GnuTLS version 3.0.0, the core library has been released under
102 the GNU Lesser General Public License (LGPL) version 3 or later.
104 The GNU LGPL applies to the main GnuTLS library, while the
105 included applications as well as gnutls-openssl
106 library are under the GNU GPL version 3. The gnutls library is
107 located in the lib/ directory, while the applications in src/ and
108 gnutls-openssl library is at extra/.
110 For any copyright year range specified as YYYY-ZZZZ in this package
111 note that the range specifies every single year in that closed interval.
116 Thorough testing is very important and expensive. Often, the
117 developers do not have access to a particular piece of hardware or
118 configuration to reproduce a scenario. Notifying the developers about a
119 possible bug will greatly help the project.
121 If you believe you have found a bug, please report it to bug-gnutls@gnu.org
122 together with any applicable information. A web interface for the system
123 is available at http://savannah.gnu.org/support/?group=gnutls.
125 Applicable information would include why the issue is a GnuTLS bug (if
126 not readily apparent), output from 'uname -a', the version of the library or
127 tool being used, a stack trace if available ('bt full' if under gdb or
128 valgrind output), and perhaps a network trace. Vague queries or piecemeal
129 messages are difficult to act upon and don't help the development effort.
131 Additional information can be found at the project's manual.
136 Patches are welcome and encouraged. Patches can be submitted through the
137 bug tracking system or the mailing list. When submitting patches, please
138 be sure to use sources from the git repository, and preferrably from the
139 master branch. To create a patch for the project from a local git repository,
140 please use the following commands. 'gnutls' should be the local directory
141 of a previous git clone.
144 git add the-file-you-modified.c another-file.c
145 git commit the-file-you-modified.c another-file.c
148 For more information on use of Git, visit http://git-scm.com/
150 ----------------------------------------------------------------------
151 Copying and distribution of this file, with or without modification,
152 are permitted in any medium without royalty provided the copyright
153 notice and this notice are preserved.