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Matt Caswell f109e96559 Don't hold any locks while calling the provider init function Previously providers were added to the store first, and then subsequently initialised. This meant that during initialisation the provider object could be shared between multiple threads and hence the locks needed to be held. However this causes problems because the provider init function is essentially a user callback and could do virtually anything. There are many API calls that could be invoked that could subsequently attempt to acquire the locks. This will fail because the locks are already held. However, now we have refactored things so that the provider is created and initialised before being added to the store. Therefore at the point of initialisation the provider object is not shared with other threads and so no locks need to be held. Fixes #15793 Fixes #15712 Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15854)		2021-06-24 14:48:15 +01:00
.github	Update dependencies for krb5 external test	2021-06-23 10:26:53 +02:00
apps	Adapt other parts of the source to the changed EVP_Q_digest() and EVP_Q_mac()	2021-06-23 23:00:36 +02:00
Configurations	Make util/wrap.pl work better on VMS	2021-06-18 09:08:16 +02:00
crypto	Don't hold any locks while calling the provider init function	2021-06-24 14:48:15 +01:00
demos	Add demo for HKDF	2021-06-18 17:06:31 +10:00
dev	Refer to the migration guide rather than the wiki in our announcements	2021-05-20 11:58:29 +01:00
doc	Set use_fallbacks to zero when we add a provider to the store	2021-06-24 14:48:14 +01:00
engines	Update copyright year	2021-06-17 13:24:59 +01:00
external/perl
fuzz	Update copyright year	2021-06-17 13:24:59 +01:00
gost-engine@62583fb222
include	Merge ossl_provider_activate() and ossl_provider_activate_child()	2021-06-24 14:48:14 +01:00
krb5@aa9b4a2a64	Update dependencies for krb5 external test	2021-06-23 10:26:53 +02:00
ms
os-dep
providers	epki2pki_decode: passphrase callback failure is fatal error	2021-06-24 15:26:56 +02:00
pyca-cryptography@62124e673a
ssl	Adapt other parts of the source to the changed EVP_Q_digest() and EVP_Q_mac()	2021-06-23 23:00:36 +02:00
test	Merge ossl_provider_activate() and ossl_provider_activate_child()	2021-06-24 14:48:14 +01:00
tools	Move some OpenSSL perl utility functions to OpenSSL::Util	2021-05-19 10:13:02 +02:00
util	Make util/wrap.pl work better on VMS	2021-06-18 09:08:16 +02:00
VMS
wycheproof@2196000605
.gitattributes
.gitignore	Ignore the threadstest_fips executable	2021-05-26 22:08:10 +10:00
.gitmodules
ACKNOWLEDGEMENTS.md
appveyor.yml
AUTHORS.md
build.info	Building: Add necessary dependencies for linker scripts and .rc files	2021-06-11 17:22:44 +02:00
CHANGES.md	Prepare for 3.0 beta 2	2021-06-17 14:03:53 +01:00
config
config.com
configdata.pm.in	configdata.pm: Allow extra arguments when --query is given.	2021-05-29 11:02:37 +02:00
Configure	Configure: Reflect that We don't build loader_attic when dynamic-engine is disabled	2021-06-23 18:06:59 +02:00
CONTRIBUTING.md
e_os.h	Remove I_CAN_LIVE_WITH_LNK4049	2021-06-09 18:01:22 +10:00
FAQ.md
HACKING.md
INSTALL.md	Enable ssl-trace by default	2021-06-10 09:42:12 +01:00
LICENSE.txt
NEWS.md	Prepare for 3.0 beta 2	2021-06-17 14:03:53 +01:00
NOTES-ANDROID.md
NOTES-DJGPP.md
NOTES-NONSTOP.md	DOC: Slightly improve the documentation of BIO_lookup() and related functions	2021-05-29 07:47:03 +02:00
NOTES-PERL.md	Fix issues found by md-nits	2021-05-28 11:14:46 +02:00
NOTES-UNIX.md
NOTES-VALGRIND.md
NOTES-VMS.md	Fix issues found by md-nits	2021-05-28 11:14:46 +02:00
NOTES-WINDOWS.md	Fix issues found by md-nits	2021-05-28 11:14:46 +02:00
README-ENGINES.md
README-FIPS.md	Add migration guide for 3.0	2021-05-20 08:44:08 +01:00
README-PROVIDERS.md	Fix issues found by md-nits	2021-05-28 11:14:46 +02:00
README.md
SUPPORT.md
VERSION.dat	Prepare for 3.0 beta 2	2021-06-17 14:03:53 +01:00

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, as well as known issues are available on the OpenSSL 3.0 Wiki 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.