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1 | ||
2 | Copyright (c) 1998-2018 The OpenSSL Project | |
3 | Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson | |
4 | All rights reserved. | |
5 | ||
6 | DESCRIPTION | |
7 | ----------- | |
8 | ||
9 | The OpenSSL Project is a collaborative effort to develop a robust, | |
10 | commercial-grade, fully featured, and Open Source toolkit implementing the | |
11 | Transport Layer Security (TLS) protocols (including SSLv3) as well as a | |
12 | full-strength general purpose cryptographic library. | |
13 | ||
14 | OpenSSL is descended from the SSLeay library developed by Eric A. Young | |
15 | and Tim J. Hudson. | |
16 | ||
17 | The OpenSSL toolkit is licensed under the Apache License 2.0, which means | |
18 | that you are free to get and use it for commercial and non-commercial | |
19 | purposes as long as you fulfill its conditions. | |
20 | ||
21 | OVERVIEW | |
22 | -------- | |
23 | ||
24 | The OpenSSL toolkit includes: | |
25 | ||
26 | libssl (with platform specific naming): | |
27 | Provides the client and server-side implementations for SSLv3 and TLS. | |
28 | ||
29 | libcrypto (with platform specific naming): | |
30 | Provides general cryptographic and X.509 support needed by SSL/TLS but | |
31 | not logically part of it. | |
32 | ||
33 | openssl: | |
34 | A command line tool that can be used for: | |
35 | Creation of key parameters | |
36 | Creation of X.509 certificates, CSRs and CRLs | |
37 | Calculation of message digests | |
38 | Encryption and decryption | |
39 | SSL/TLS client and server tests | |
40 | Handling of S/MIME signed or encrypted mail | |
41 | And more... | |
42 | ||
43 | INSTALLATION | |
44 | ------------ | |
45 | ||
46 | See the appropriate file: | |
47 | INSTALL Linux, Unix, Windows, OpenVMS, ... | |
48 | NOTES.* INSTALL addendums for different platforms | |
49 | ||
50 | SUPPORT | |
51 | ------- | |
52 | ||
53 | See the OpenSSL website www.openssl.org for details on how to obtain | |
54 | commercial technical support. Free community support is available through the | |
55 | openssl-users email list (see | |
56 | https://www.openssl.org/community/mailinglists.html for further details). | |
57 | ||
58 | If you have any problems with OpenSSL then please take the following steps | |
59 | first: | |
60 | ||
61 | - Download the latest version from the repository | |
62 | to see if the problem has already been addressed | |
63 | - Configure with no-asm | |
64 | - Remove compiler optimization flags | |
65 | ||
66 | If you wish to report a bug then please include the following information | |
67 | and create an issue on GitHub: | |
68 | ||
69 | - OpenSSL version: output of 'openssl version -a' | |
70 | - Configuration data: output of 'perl configdata.pm --dump' | |
71 | - OS Name, Version, Hardware platform | |
72 | - Compiler Details (name, version) | |
73 | - Application Details (name, version) | |
74 | - Problem Description (steps that will reproduce the problem, if known) | |
75 | - Stack Traceback (if the application dumps core) | |
76 | ||
77 | Just because something doesn't work the way you expect does not mean it | |
78 | is necessarily a bug in OpenSSL. Use the openssl-users email list for this type | |
79 | of query. | |
80 | ||
81 | HOW TO CONTRIBUTE TO OpenSSL | |
82 | ---------------------------- | |
83 | ||
84 | See CONTRIBUTING | |
85 | ||
86 | LEGALITIES | |
87 | ---------- | |
88 | ||
89 | A number of nations restrict the use or export of cryptography. If you | |
90 | are potentially subject to such restrictions you should seek competent | |
91 | professional legal advice before attempting to develop or distribute | |
92 | cryptographic code. |