mirror of https://github.com/openssl/openssl.git synced 2024-11-21 01:15:20 +08:00

Go to file

Dr. David von Oheimb 260878f7aa CMP app and doc: improve texts on (un-)trusted certs, srvCert, etc. Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com> Reviewed-by: Hugo Landau <hlandau@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19946)		2023-02-08 16:29:00 +01:00
.github	ci: Add djgpp build	2023-02-08 09:20:02 -05:00
apps	CMP app and doc: improve texts on (un-)trusted certs, srvCert, etc.	2023-02-08 16:29:00 +01:00
Configurations	Fix more VMS inclusions	2023-02-08 11:24:02 +01:00
crypto	New function EC_GROUP_to_params to convert an EC_GROUP to an array of OSSL_PARAM.	2023-02-08 10:27:07 -05:00
demos
dev
doc	CMP app and doc: improve texts on (un-)trusted certs, srvCert, etc.	2023-02-08 16:29:00 +01:00
engines
external/perl
fuzz
gost-engine@a6b90523e4	APPS: generated certs bear X.509 V3, unless -x509v1 option of req app is given	2023-01-24 15:16:47 +01:00
include	New function EC_GROUP_to_params to convert an EC_GROUP to an array of OSSL_PARAM.	2023-02-08 10:27:07 -05:00
krb5@aa9b4a2a64
ms
oqs-provider@3f3d8a8cf3
os-dep
providers	Rationalize FIPS sources	2023-02-08 16:20:55 +01:00
pyca-cryptography@7e33b0e773
python-ecdsa@4de8d5bf89
ssl	Rationalize FIPS sources	2023-02-08 16:20:55 +01:00
test	New function EC_GROUP_to_params to convert an EC_GROUP to an array of OSSL_PARAM.	2023-02-08 10:27:07 -05:00
tlsfuzzer@dbd56c1490
tlslite-ng@771e9f59d6
tools
util	New function EC_GROUP_to_params to convert an EC_GROUP to an array of OSSL_PARAM.	2023-02-08 10:27:07 -05:00
VMS
wycheproof@2196000605
.gitattributes
.gitignore
.gitmodules
ACKNOWLEDGEMENTS.md
appveyor.yml
AUTHORS.md
build.info
CHANGES.md	New function EC_GROUP_to_params to convert an EC_GROUP to an array of OSSL_PARAM.	2023-02-08 10:27:07 -05:00
CODE-OF-CONDUCT.md
config
config.com
configdata.pm.in	Use $config{build_file} instead of $target{build_file}	2023-02-01 08:30:04 +01:00
Configure	Use $config{build_file} instead of $target{build_file}	2023-02-01 08:30:04 +01:00
CONTRIBUTING.md
FAQ.md
HACKING.md
INSTALL.md	Use $config{build_file} instead of $target{build_file}	2023-02-01 08:30:04 +01:00
LICENSE.txt
NEWS.md
NOTES-ANDROID.md
NOTES-DJGPP.md
NOTES-NONSTOP.md	Document limits on static and dynamic linking for HPE NonStop platforms.	2023-02-08 16:09:58 +01:00
NOTES-PERL.md
NOTES-UNIX.md
NOTES-VALGRIND.md
NOTES-VMS.md
NOTES-WINDOWS.md
README-ENGINES.md
README-FIPS.md
README-PROVIDERS.md
README.md
SUPPORT.md
VERSION.dat

README.md

Welcome to the OpenSSL Project

OpenSSL is a robust, commercial-grade, full-featured Open Source Toolkit for the Transport Layer Security (TLS) protocol formerly known as the Secure Sockets Layer (SSL) protocol. The protocol implementation is based on a full-strength general purpose cryptographic library, which can also be used stand-alone.

OpenSSL is descended from the SSLeay library developed by Eric A. Young and Tim J. Hudson.

The official Home Page of the OpenSSL Project is www.openssl.org.

Overview
Download
Build and Install
Documentation
License
Support
Contributing
Legalities

Overview

The OpenSSL toolkit includes:

libssl an implementation of all TLS protocol versions up to TLSv1.3 (RFC 8446).
libcrypto a full-strength general purpose cryptographic library. It constitutes the basis of the TLS implementation, but can also be used independently.
openssl the OpenSSL command line tool, a swiss army knife for cryptographic tasks, testing and analyzing. It can be used for
- creation of key parameters
- creation of X.509 certificates, CSRs and CRLs
- calculation of message digests
- encryption and decryption
- SSL/TLS client and server tests
- handling of S/MIME signed or encrypted mail
- and more...

Download

For Production Use

Source code tarballs of the official releases can be downloaded from www.openssl.org/source. The OpenSSL project does not distribute the toolkit in binary form.

However, for a large variety of operating systems precompiled versions of the OpenSSL toolkit are available. In particular, on Linux and other Unix operating systems, it is normally recommended to link against the precompiled shared libraries provided by the distributor or vendor.

For Testing and Development

Although testing and development could in theory also be done using the source tarballs, having a local copy of the git repository with the entire project history gives you much more insight into the code base.

The official OpenSSL Git Repository is located at git.openssl.org. There is a GitHub mirror of the repository at github.com/openssl/openssl, which is updated automatically from the former on every commit.

A local copy of the Git Repository can be obtained by cloning it from the original OpenSSL repository using

git clone git://git.openssl.org/openssl.git

or from the GitHub mirror using

git clone https://github.com/openssl/openssl.git

If you intend to contribute to OpenSSL, either to fix bugs or contribute new features, you need to fork the OpenSSL repository openssl/openssl on GitHub and clone your public fork instead.

git clone https://github.com/yourname/openssl.git

This is necessary because all development of OpenSSL nowadays is done via GitHub pull requests. For more details, see Contributing.

Build and Install

After obtaining the Source, have a look at the INSTALL file for detailed instructions about building and installing OpenSSL. For some platforms, the installation instructions are amended by a platform specific document.

Specific notes on upgrading to OpenSSL 3.0 from previous versions can be found in the migration_guide(7ossl) manual page.

Documentation

Manual Pages

The manual pages for the master branch and all current stable releases are available online.

Wiki

There is a Wiki at wiki.openssl.org which is currently not very active. It contains a lot of useful information, not all of which is up-to-date.

License

OpenSSL is licensed under the Apache License 2.0, which means that you are free to get and use it for commercial and non-commercial purposes as long as you fulfill its conditions.

See the LICENSE.txt file for more details.

Support

There are various ways to get in touch. The correct channel depends on your requirement. See the SUPPORT file for more details.

Contributing

If you are interested and willing to contribute to the OpenSSL project, please take a look at the CONTRIBUTING file.

Legalities

A number of nations restrict the use or export of cryptography. If you are potentially subject to such restrictions, you should seek legal advice before attempting to develop or distribute cryptographic code.