2000-01-10 06:22:05 +00:00
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2021-03-25 15:05:31 +00:00
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OpenSSL 1.1.1k 25 Mar 2021
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2000-01-10 06:22:05 +00:00
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2021-03-25 15:05:31 +00:00
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Copyright (c) 1998-2021 The OpenSSL Project
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2000-01-10 06:22:05 +00:00
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Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson
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All rights reserved.
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DESCRIPTION
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-----------
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The OpenSSL Project is a collaborative effort to develop a robust,
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commercial-grade, fully featured, and Open Source toolkit implementing the
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2018-09-13 19:18:07 +00:00
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Transport Layer Security (TLS) protocols (including SSLv3) as well as a
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full-strength general purpose cryptographic library.
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2000-01-10 06:22:05 +00:00
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2015-12-03 17:22:58 +00:00
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OpenSSL is descended from the SSLeay library developed by Eric A. Young
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and Tim J. Hudson. The OpenSSL toolkit is licensed under a dual-license (the
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2015-12-03 17:22:58 +00:00
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OpenSSL license plus the SSLeay license), which means that you are free to
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get and use it for commercial and non-commercial purposes as long as you
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fulfill the conditions of both licenses.
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2000-01-10 06:22:05 +00:00
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OVERVIEW
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--------
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The OpenSSL toolkit includes:
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2018-09-13 19:18:07 +00:00
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libssl (with platform specific naming):
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Provides the client and server-side implementations for SSLv3 and TLS.
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2000-01-10 06:22:05 +00:00
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2018-09-13 19:18:07 +00:00
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libcrypto (with platform specific naming):
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Provides general cryptographic and X.509 support needed by SSL/TLS but
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not logically part of it.
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2000-01-10 06:22:05 +00:00
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2006-07-29 19:10:21 +00:00
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openssl:
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A command line tool that can be used for:
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Creation of key parameters
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Creation of X.509 certificates, CSRs and CRLs
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Calculation of message digests
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Encryption and decryption
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SSL/TLS client and server tests
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Handling of S/MIME signed or encrypted mail
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And more...
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INSTALLATION
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------------
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See the appropriate file:
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INSTALL Linux, Unix, Windows, OpenVMS, ...
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NOTES.* INSTALL addendums for different platforms
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2002-07-30 13:38:06 +00:00
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2006-07-29 19:10:21 +00:00
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SUPPORT
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-------
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2015-12-03 17:22:58 +00:00
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See the OpenSSL website www.openssl.org for details on how to obtain
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commercial technical support. Free community support is available through the
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openssl-users email list (see
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https://www.openssl.org/community/mailinglists.html for further details).
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2010-02-28 18:49:43 +00:00
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2000-01-10 06:22:05 +00:00
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If you have any problems with OpenSSL then please take the following steps
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first:
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2017-01-26 18:32:12 +00:00
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- Download the latest version from the repository
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to see if the problem has already been addressed
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- Configure with no-asm
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- Remove compiler optimization flags
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2017-01-26 18:32:12 +00:00
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If you wish to report a bug then please include the following information
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and create an issue on GitHub:
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2018-09-13 19:18:07 +00:00
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- OpenSSL version: output of 'openssl version -a'
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- Configuration data: output of 'perl configdata.pm --dump'
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- OS Name, Version, Hardware platform
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- Compiler Details (name, version)
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- Application Details (name, version)
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- Problem Description (steps that will reproduce the problem, if known)
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- Stack Traceback (if the application dumps core)
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2000-01-10 06:22:05 +00:00
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2015-12-03 17:22:58 +00:00
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Just because something doesn't work the way you expect does not mean it
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2018-09-13 19:18:07 +00:00
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is necessarily a bug in OpenSSL. Use the openssl-users email list for this type
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of query.
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2010-02-28 18:49:43 +00:00
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2000-01-10 06:22:05 +00:00
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HOW TO CONTRIBUTE TO OpenSSL
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----------------------------
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2015-12-03 17:22:58 +00:00
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See CONTRIBUTING
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LEGALITIES
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----------
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2017-01-26 18:32:12 +00:00
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A number of nations restrict the use or export of cryptography. If you
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are potentially subject to such restrictions you should seek competent
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professional legal advice before attempting to develop or distribute
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cryptographic code.
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