4 Copyright (c) 1998-2015 The OpenSSL Project
5 Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson
11 The OpenSSL Project is a collaborative effort to develop a robust,
12 commercial-grade, fully featured, and Open Source toolkit implementing the
13 Secure Sockets Layer (SSLv3) and Transport Layer Security (TLS) protocols as
14 well as a full-strength general purpose cryptograpic library. The project is
15 managed by a worldwide community of volunteers that use the Internet to
16 communicate, plan, and develop the OpenSSL toolkit and its related
19 OpenSSL is descended from the SSLeay library developed by Eric A. Young
20 and Tim J. Hudson. The OpenSSL toolkit is licensed under a dual-license (the
21 OpenSSL license plus the SSLeay license), which means that you are free to
22 get and use it for commercial and non-commercial purposes as long as you
23 fulfill the conditions of both licenses.
28 The OpenSSL toolkit includes:
31 Provides the client and server-side implementations for SSLv3 and TLS.
34 Provides general cryptographic and X.509 support needed by SSL/TLS but
35 not logically part of it.
38 A command line tool that can be used for:
39 Creation of key parameters
40 Creation of X.509 certificates, CSRs and CRLs
41 Calculation of message digests
42 Encryption and decryption
43 SSL/TLS client and server tests
44 Handling of S/MIME signed or encrypted mail
50 See the appropriate file:
51 INSTALL Linux, Unix, etc.
52 INSTALL.DJGPP DOS platform with DJGPP
56 INSTALL.W32 Windows (32bit)
57 INSTALL.W64 Windows (64bit)
58 INSTALL.WCE Windows CE
63 See the OpenSSL website www.openssl.org for details on how to obtain
64 commercial technical support.
66 If you have any problems with OpenSSL then please take the following steps
69 - Download the current snapshot from ftp://ftp.openssl.org/snapshot/
70 to see if the problem has already been addressed
71 - Remove ASM versions of libraries
72 - Remove compiler optimisation flags
74 If you wish to report a bug then please include the following information in
78 Self-test report generated by 'make report'
80 OpenSSL version: output of 'openssl version -a'
81 OS Name, Version, Hardware platform
82 Compiler Details (name, version)
83 - Application Details (name, version)
84 - Problem Description (steps that will reproduce the problem, if known)
85 - Stack Traceback (if the application dumps core)
91 In order to avoid spam, this is a moderated mailing list, and it might
92 take a day for the ticket to show up. (We also scan posts to make sure
93 that security disclosures aren't publically posted by mistake.) Mail to
94 this address is recorded in the public RT (request tracker) database (see
95 https://www.openssl.org/support/rt.html for details) and also forwarded
96 the public openssl-dev mailing list. Confidential mail may be sent to
97 openssl-security@openssl.org (PGP key available from the key servers).
99 Please do NOT use this for general assistance or support queries.
100 Just because something doesn't work the way you expect does not mean it
101 is necessarily a bug in OpenSSL.
103 You can also make GitHub pull requests. If you do this, please also send
104 mail to rt@openssl.org with a link to the PR so that we can more easily
107 HOW TO CONTRIBUTE TO OpenSSL
108 ----------------------------
115 A number of nations, in particular the U.S., restrict the use or export
116 of cryptography. If you are potentially subject to such restrictions
117 you should seek competent professional legal advice before attempting to
118 develop or distribute cryptographic code.