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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  |  OpenSSL 1.1.1-pre3-dev | 
					
						
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										 |  |  |  Copyright (c) 1998-2018 The OpenSSL Project | 
					
						
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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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 | 
					
						
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										 |  |  |  DESCRIPTION | 
					
						
							|  |  |  |  ----------- | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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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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										 |  |  |  Transport Layer Security (TLS) protocols (including SSLv3) as well as a | 
					
						
							|  |  |  |  full-strength general purpose cryptographic library. | 
					
						
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
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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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										 |  |  |  OpenSSL license plus the SSLeay license), which means that you are free to | 
					
						
							|  |  |  |  get and use it for commercial and non-commercial purposes as long as you | 
					
						
							|  |  |  |  fulfill the conditions of both licenses. | 
					
						
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										 |  |  | 
 | 
					
						
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										 |  |  |  OVERVIEW | 
					
						
							|  |  |  |  -------- | 
					
						
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 | 
					
						
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										 |  |  |  The OpenSSL toolkit includes: | 
					
						
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										 |  |  | 
 | 
					
						
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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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										 |  |  | 
 | 
					
						
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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 | 
					
						
							|  |  |  |      not logically part of it. | 
					
						
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										 |  |  | 
 | 
					
						
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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 | 
					
						
							|  |  |  |         Encryption and decryption | 
					
						
							|  |  |  |         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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										 |  |  | 
 | 
					
						
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										 |  |  |  INSTALLATION | 
					
						
							|  |  |  |  ------------ | 
					
						
							|  |  |  | 
 | 
					
						
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										 |  |  |  See the appropriate file: | 
					
						
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										 |  |  |         INSTALL         Linux, Unix, Windows, OpenVMS, ... | 
					
						
							|  |  |  |         NOTES.*         INSTALL addendums for different platforms | 
					
						
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										 |  |  | 
 | 
					
						
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										 |  |  |  SUPPORT | 
					
						
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										 |  |  |  ------- | 
					
						
							|  |  |  | 
 | 
					
						
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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 | 
					
						
							|  |  |  |  openssl-users email list (see | 
					
						
							|  |  |  |  https://www.openssl.org/community/mailinglists.html for further details). | 
					
						
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  |  If you have any problems with OpenSSL then please take the following steps | 
					
						
							|  |  |  |  first: | 
					
						
							|  |  |  | 
 | 
					
						
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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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										 |  |  | 
 | 
					
						
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										 |  |  |  If you wish to report a bug then please include the following information | 
					
						
							|  |  |  |  and create an issue on GitHub: | 
					
						
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
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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 | 
					
						
							|  |  |  |     - Compiler Details (name, version) | 
					
						
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										 |  |  |     - Application Details (name, version) | 
					
						
							|  |  |  |     - Problem Description (steps that will reproduce the problem, if known) | 
					
						
							|  |  |  |     - Stack Traceback (if the application dumps core) | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  |  Just because something doesn't work the way you expect does not mean it | 
					
						
							| 
									
										
										
										
											2016-06-02 18:01:32 +08:00
										 |  |  |  is necessarily a bug in OpenSSL. Use the openssl-users email list for this type | 
					
						
							|  |  |  |  of query. | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											1999-05-06 08:40:46 +08:00
										 |  |  |  HOW TO CONTRIBUTE TO OpenSSL | 
					
						
							|  |  |  |  ---------------------------- | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  |  See CONTRIBUTING | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
							|  |  |  |  LEGALITIES | 
					
						
							|  |  |  |  ---------- | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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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 | 
					
						
							|  |  |  |  professional legal advice before attempting to develop or distribute | 
					
						
							|  |  |  |  cryptographic code. |