X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=README;h=a0d434f6aaebc136e9863967c96decac5475be28;hp=2170309ae05013ffd4a4e6701e45596f253fa97f;hb=d6d422e1ec48fac1c6194ab672e320281a214a32;hpb=1c308226fe4f80fc89f6dcf37f9dfadc4f6c01f6 diff --git a/README b/README index 2170309ae0..a0d434f6aa 100644 --- a/README +++ b/README @@ -1,122 +1,118 @@ - OpenSSL 0.9.2 06-Mar-1999 + OpenSSL 1.1.0-pre4-dev - Copyright (c) 1998-1999 The OpenSSL Project + Copyright (c) 1998-2016 The OpenSSL Project Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson All rights reserved. + DESCRIPTION + ----------- + 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 with full-strength cryptography world-wide. The project is managed - by a worldwide community of volunteers that use the Internet to communicate, - plan, and develop the OpenSSL tookit and its related documentation. + Secure Sockets Layer (SSLv3) and Transport Layer Security (TLS) protocols as + well as a full-strength general purpose cryptographic 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 fullfill 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 + -------- 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 has been floating - around the net for a few years. 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 polular 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. - - openssl: - A command line tool which provides the following functions: - - enc - a general encryption program that can encrypt/decrypt using - one of 17 different cipher/mode combinations. The - input/output can also be converted to/from base64 - ascii encoding. - dgst - a generate message digesting program that will generate - message digests for any of md2, md5, sha (sha-0 or sha-1) - or mdc2. - asn1parse - parse and display the structure of an asn1 encoded - binary file. - rsa - Manipulate RSA private keys. - dsa - Manipulate DSA private keys. - dh - Manipulate Diffie-Hellman parameter files. - dsaparam- Manipulate and generate DSA parameter files. - crl - Manipulate certificate revocation lists. - crt2pkcs7- Generate a pkcs7 object containing a crl and a certificate. - x509 - Manipulate x509 certificates, self-sign certificates. - req - Manipulate PKCS#10 certificate requests and also - generate certificate requests. - genrsa - Generates an arbitrary sized RSA private key. - gendsa - Generates DSA parameters. - gendh - Generates a set of Diffie-Hellman parameters, the prime - will be a strong prime. - ca - Create certificates from PKCS#10 certificate requests. - This program also maintains a database of certificates - issued. - verify - Check x509 certificate signatures. - speed - Benchmark OpenSSL's ciphers. - s_server- A test SSL server. - s_client- A test SSL client. - s_time - Benchmark SSL performance of SSL server programs. - errstr - Convert from OpenSSL hex error codes to a readable form. - nseq - Netscape certificate sequence utility - - To install this package under a Unix derivative, read the INSTALL file. For - a Win32 platform, read the INSTALL.W32 file. - - For people in the USA, it is possible to compile OpenSSL to use RSA Inc.'s - public key library, RSAref. Read doc/ssleay.txt under 'rsaref.doc' on how to - build with RSAref. - - 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 used them. Look at the example programs. - + 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 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... + + INSTALLATION + ------------ + + 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.WIN Windows + INSTALL.WCE Windows CE + + SUPPORT + ------- + + 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 + first: + + - Download the current snapshot from ftp://ftp.openssl.org/snapshot/ + to see if the problem has already been addressed + - Remove ASM versions of libraries + - Remove compiler optimisation flags + + If you wish to report a bug then please include the following information in + any bug report: + + - On Unix systems: + Self-test report generated by 'make report' + - On other systems: + OpenSSL version: output of 'openssl version -a' + OS Name, Version, Hardware platform + Compiler Details (name, version) + - Application Details (name, version) + - Problem Description (steps that will reproduce the problem, if known) + - Stack Traceback (if the application dumps core) + + Email the report to: + + rt@openssl.org + + In order to avoid spam, this is a moderated mailing list, and it might + take a day for the ticket to show up. (We also scan posts to make sure + that security disclosures aren't publically posted by mistake.) Mail + to this address is recorded in the public RT (request tracker) database + (see https://www.openssl.org/community/index.html#bugs for details) and + also forwarded the public openssl-dev mailing list. Confidential mail + may be sent to openssl-security@openssl.org (PGP key available from the + key servers). + + Please do NOT use this for general assistance or support queries. + Just because something doesn't work the way you expect does not mean it + is necessarily a bug in OpenSSL. + + You can also make GitHub pull requests. If you do this, please also send + mail to rt@openssl.org with a link to the PR so that we can more easily + keep track of it. + + HOW TO CONTRIBUTE TO OpenSSL + ---------------------------- + + 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.