Various README updates (b06935f4) · Commits · CYBER - Cyber Security / TS 103 523 MSP / TLMSP / TLMSP OpenSSL

README

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		The OpenSSL Project is a collaborative effort to develop a robust,
		commercial-grade, fully featured, and Open Source toolkit implementing the
		Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1)
		protocols as well as a full-strength general purpose cryptography library.
		The project is managed by a worldwide community of volunteers that use the
		Internet to communicate, plan, and develop the OpenSSL toolkit and its
		related documentation.
		Secure Sockets Layer (SSLv3) and Transport Layer Security (TLS) protocols as
		well as a full-strength general purpose cryptograpic library. The project is
		managed by a worldwide community of volunteers that use the Internet to
		communicate, plan, and develop the OpenSSL toolkit and its related
		documentation.

		OpenSSL is based on the excellent SSLeay library developed from Eric A. Young
		OpenSSL is descended from the SSLeay library developed by Eric A. Young
		and Tim J. Hudson. The OpenSSL toolkit is licensed under a dual-license (the
		OpenSSL license plus the SSLeay license) situation, which basically 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.
		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.

		OVERVIEW
		--------
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		The OpenSSL toolkit includes:

		libssl.a:
		Implementation of SSLv2, SSLv3, TLSv1 and the required code to support
		both SSLv2, SSLv3 and TLSv1 in the one server and client.
		Provides the client and server-side implementations for SSLv3 and TLS.

		libcrypto.a:
		General encryption and X.509 v1/v3 stuff needed by SSL/TLS but not
		actually logically part of it. It includes routines for the following:

		Ciphers
		libdes - EAY's libdes DES encryption package which was floating
		around the net for a few years, and was then relicensed by
		him as part of SSLeay. It includes 15 'modes/variations'
		of DES (1, 2 and 3 key versions of ecb, cbc, cfb and ofb;
		pcbc and a more general form of cfb and ofb) including desx
		in cbc mode, a fast crypt(3), and routines to read
		passwords from the keyboard.
		RC4 encryption,
		RC2 encryption - 4 different modes, ecb, cbc, cfb and ofb.
		Blowfish encryption - 4 different modes, ecb, cbc, cfb and ofb.
		IDEA encryption - 4 different modes, ecb, cbc, cfb and ofb.

		Digests
		MD5 and MD2 message digest algorithms, fast implementations,
		SHA (SHA-0) and SHA-1 message digest algorithms,
		MDC2 message digest. A DES based hash that is popular on smart cards.

		Public Key
		RSA encryption/decryption/generation.
		There is no limit on the number of bits.
		DSA encryption/decryption/generation.
		There is no limit on the number of bits.
		Diffie-Hellman key-exchange/key generation.
		There is no limit on the number of bits.

		X.509v3 certificates
		X509 encoding/decoding into/from binary ASN1 and a PEM
		based ASCII-binary encoding which supports encryption with a
		private key. Program to generate RSA and DSA certificate
		requests and to generate RSA and DSA certificates.

		Systems
		The normal digital envelope routines and base64 encoding. Higher
		level access to ciphers and digests by name. New ciphers can be
		loaded at run time. The BIO io system which is a simple non-blocking
		IO abstraction. Current methods supported are file descriptors,
		sockets, socket accept, socket connect, memory buffer, buffering, SSL
		client/server, file pointer, encryption, digest, non-blocking testing
		and null.

		Data structures
		A dynamically growing hashing system
		A simple stack.
		A Configuration loader that uses a format similar to MS .ini files.
		Provides general cryptographic and X.509 support needed by SSL/TLS but
		not logically part of it.

		openssl:
		A command line tool that can be used for:
		Creation of RSA, DH and DSA key parameters
		Creation of key parameters
		Creation of X.509 certificates, CSRs and CRLs
		Calculation of Message Digests
		Encryption and Decryption with Ciphers
		SSL/TLS Client and Server Tests
		Calculation of message digests
		Encryption and decryption
		SSL/TLS client and server tests
		Handling of S/MIME signed or encrypted mail
		And more...

		INSTALLATION
		------------

		To install this package under a Unix derivative, read the INSTALL file. For
		a Win32 platform, read the INSTALL.W32 file. For OpenVMS systems, read
		INSTALL.VMS.

		Read the documentation in the doc/ directory. It is quite rough, but it
		lists the functions; you will probably have to look at the code to work out
		how to use them. Look at the example programs.

		PROBLEMS
		--------

		For some platforms, there are some known problems that may affect the user
		or application author. We try to collect those in doc/PROBLEMS, with current
		thoughts on how they should be solved in a future of OpenSSL.
		See the appropriate file:
		INSTALL Linux, Unix, etc.
		INSTALL.DJGPP DOS platform with DJGPP
		INSTALL.NW Netware
		INSTALL.OS2 OS/2
		INSTALL.VMS VMS
		INSTALL.W32 Windows (32bit)
		INSTALL.W64 Windows (64bit)
		INSTALL.WCE Windows CE

		SUPPORT
		-------

		See the OpenSSL website www.openssl.org for details of how to obtain
		See the OpenSSL website www.openssl.org for details on how to obtain
		commercial technical support.

		If you have any problems with OpenSSL then please take the following steps
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		----------------------------

		See CONTRIBUTING

		LEGALITIES
		----------

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

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