2 Apache HTTP Server 2.2 Limited OpenSSL Distribution
4 This binary installation of OpenSSL is a limited distribution of the
5 files derived from the OpenSSL project:
7 LICENSE.txt (includes openssl LICENSE)
15 These are the minimal libraries and tools required to use mod_ssl as
16 distributed with Apache HTTP Server version 2.2. No library link files,
17 headers or sources are distributed with this binary distribution. Please
18 refer to the <http://www.openssl.org/> site for complete source or binary
21 These OpenSSL binaries were built for distribution from the U.S. without
22 support for the patented encryption methods IDEA, MDC-2 or RC5.
24 The Apache HTTP Project only supports the binary distribution of these files
25 and development of the mod_ssl module. We cannot provide support assistance
26 for using or configuring the OpenSSL package or these modules. Please refer
27 all installation and configuration questions to the appropriate forum,
28 such as the user supported lists, <http://httpd.apache.org/userslist.html>
29 the Apache HTTP Server user's list or <http://www.openssl.org/support/> the
32 --------------------------------------------------------------------------------
35 OpenSSL 0.9.8y 5 Feb 2013
37 Copyright (c) 1998-2011 The OpenSSL Project
38 Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson
44 The OpenSSL Project is a collaborative effort to develop a robust,
45 commercial-grade, fully featured, and Open Source toolkit implementing the
46 Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1)
47 protocols as well as a full-strength general purpose cryptography library.
48 The project is managed by a worldwide community of volunteers that use the
49 Internet to communicate, plan, and develop the OpenSSL toolkit and its
50 related documentation.
52 OpenSSL is based on the excellent SSLeay library developed from Eric A. Young
53 and Tim J. Hudson. The OpenSSL toolkit is licensed under a dual-license (the
54 OpenSSL license plus the SSLeay license) situation, which basically means
55 that you are free to get and use it for commercial and non-commercial
56 purposes as long as you fulfill the conditions of both licenses.
61 The OpenSSL toolkit includes:
64 Implementation of SSLv2, SSLv3, TLSv1 and the required code to support
65 both SSLv2, SSLv3 and TLSv1 in the one server and client.
68 General encryption and X.509 v1/v3 stuff needed by SSL/TLS but not
69 actually logically part of it. It includes routines for the following:
72 libdes - EAY's libdes DES encryption package which was floating
73 around the net for a few years, and was then relicensed by
74 him as part of SSLeay. It includes 15 'modes/variations'
75 of DES (1, 2 and 3 key versions of ecb, cbc, cfb and ofb;
76 pcbc and a more general form of cfb and ofb) including desx
77 in cbc mode, a fast crypt(3), and routines to read
78 passwords from the keyboard.
80 RC2 encryption - 4 different modes, ecb, cbc, cfb and ofb.
81 Blowfish encryption - 4 different modes, ecb, cbc, cfb and ofb.
82 IDEA encryption - 4 different modes, ecb, cbc, cfb and ofb.
85 MD5 and MD2 message digest algorithms, fast implementations,
86 SHA (SHA-0) and SHA-1 message digest algorithms,
87 MDC2 message digest. A DES based hash that is popular on smart cards.
90 RSA encryption/decryption/generation.
91 There is no limit on the number of bits.
92 DSA encryption/decryption/generation.
93 There is no limit on the number of bits.
94 Diffie-Hellman key-exchange/key generation.
95 There is no limit on the number of bits.
98 X509 encoding/decoding into/from binary ASN1 and a PEM
99 based ASCII-binary encoding which supports encryption with a
100 private key. Program to generate RSA and DSA certificate
101 requests and to generate RSA and DSA certificates.
104 The normal digital envelope routines and base64 encoding. Higher
105 level access to ciphers and digests by name. New ciphers can be
106 loaded at run time. The BIO io system which is a simple non-blocking
107 IO abstraction. Current methods supported are file descriptors,
108 sockets, socket accept, socket connect, memory buffer, buffering, SSL
109 client/server, file pointer, encryption, digest, non-blocking testing
113 A dynamically growing hashing system
115 A Configuration loader that uses a format similar to MS .ini files.
118 A command line tool that can be used for:
119 Creation of RSA, DH and DSA key parameters
120 Creation of X.509 certificates, CSRs and CRLs
121 Calculation of Message Digests
122 Encryption and Decryption with Ciphers
123 SSL/TLS Client and Server Tests
124 Handling of S/MIME signed or encrypted mail
130 Various companies hold various patents for various algorithms in various
131 locations around the world. _YOU_ are responsible for ensuring that your use
132 of any algorithms is legal by checking if there are any patents in your
133 country. The file contains some of the patents that we know about or are
134 rumored to exist. This is not a definitive list.
136 RSA Security holds software patents on the RC5 algorithm. If you
137 intend to use this cipher, you must contact RSA Security for
138 licensing conditions. Their web page is http://www.rsasecurity.com/.
140 RC4 is a trademark of RSA Security, so use of this label should perhaps
141 only be used with RSA Security's permission.
143 The IDEA algorithm is patented by Ascom in Austria, France, Germany, Italy,
144 Japan, the Netherlands, Spain, Sweden, Switzerland, UK and the USA. They
145 should be contacted if that algorithm is to be used; their web page is
146 http://www.ascom.ch/.
148 NTT and Mitsubishi have patents and pending patents on the Camellia
149 algorithm, but allow use at no charge without requiring an explicit
150 licensing agreement: http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html
155 To install this package under a Unix derivative, read the INSTALL file. For
156 a Win32 platform, read the INSTALL.W32 file. For OpenVMS systems, read
159 Read the documentation in the doc/ directory. It is quite rough, but it
160 lists the functions; you will probably have to look at the code to work out
161 how to use them. Look at the example programs.
166 For some platforms, there are some known problems that may affect the user
167 or application author. We try to collect those in doc/PROBLEMS, with current
168 thoughts on how they should be solved in a future of OpenSSL.
173 See the OpenSSL website www.openssl.org for details of how to obtain
174 commercial technical support.
176 If you have any problems with OpenSSL then please take the following steps
179 - Download the current snapshot from ftp://ftp.openssl.org/snapshot/
180 to see if the problem has already been addressed
181 - Remove ASM versions of libraries
182 - Remove compiler optimisation flags
184 If you wish to report a bug then please include the following information in
188 Self-test report generated by 'make report'
190 OpenSSL version: output of 'openssl version -a'
191 OS Name, Version, Hardware platform
192 Compiler Details (name, version)
193 - Application Details (name, version)
194 - Problem Description (steps that will reproduce the problem, if known)
195 - Stack Traceback (if the application dumps core)
197 Report the bug to the OpenSSL project via the Request Tracker
198 (http://www.openssl.org/support/rt.html) by mail to:
200 openssl-bugs@openssl.org
202 Note that the request tracker should NOT be used for general assistance
203 or support queries. Just because something doesn't work the way you expect
204 does not mean it is necessarily a bug in OpenSSL.
206 Note that mail to openssl-bugs@openssl.org is recorded in the publicly
207 readable request tracker database and is forwarded to a public
208 mailing list. Confidential mail may be sent to openssl-security@openssl.org
209 (PGP key available from the key servers).
211 HOW TO CONTRIBUTE TO OpenSSL
212 ----------------------------
214 Development is coordinated on the openssl-dev mailing list (see
215 http://www.openssl.org for information on subscribing). If you
216 would like to submit a patch, send it to openssl-bugs@openssl.org with
217 the string "[PATCH]" in the subject. Please be sure to include a
218 textual explanation of what your patch does.
220 If you are unsure as to whether a feature will be useful for the general
221 OpenSSL community please discuss it on the openssl-dev mailing list first.
222 Someone may be already working on the same thing or there may be a good
223 reason as to why that feature isn't implemented.
225 Patches should be as up to date as possible, preferably relative to the
226 current CVS or the last snapshot. They should follow the coding style of
227 OpenSSL and compile without warnings. Some of the core team developer targets
228 can be used for testing purposes, (debug-steve64, debug-geoff etc). OpenSSL
229 compiles on many varied platforms: try to ensure you only use portable
232 Note: For legal reasons, contributions from the US can be accepted only
233 if a TSU notification and a copy of the patch are sent to crypt@bis.doc.gov
234 (formerly BXA) with a copy to the ENC Encryption Request Coordinator;
235 please take some time to look at
236 http://www.bis.doc.gov/Encryption/PubAvailEncSourceCodeNofify.html [sic]
238 http://w3.access.gpo.gov/bis/ear/pdf/740.pdf (EAR Section 740.13(e))
239 for the details. If "your encryption source code is too large to serve as
240 an email attachment", they are glad to receive it by fax instead; hope you
241 have a cheap long-distance plan.
243 Our preferred format for changes is "diff -u" output. You might
244 generate it like this:
248 # ./Configure dist; make clean
250 # diff -ur openssl-orig openssl-work > mydiffs.patch