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SSLeay(3)		       User Contributed Perl Documentation			SSLeay(3)

	 Crypt::SSLeay - OpenSSL glue that provides LWP https support

	 lwp-request https://www.nodeworks.com

	 use LWP::UserAgent;
	 my $ua = new LWP::UserAgent;
	 my $req = new HTTP::Request('GET', 'https://www.nodeworks.com');
	 my $res = $ua->request($req);
	 print $res->code."\n";

	 $ENV{HTTPS_PROXY} = 'http://proxy_hostname_or_ip:port';

	 $ENV{HTTPS_PROXY_USERNAME} = 'username';
	 $ENV{HTTPS_PROXY_PASSWORD} = 'password';


	 $ENV{HTTPS_CERT_FILE} = 'certs/notacacert.pem';
	 $ENV{HTTPS_KEY_FILE}  = 'certs/notacakeynopass.pem';

	 $ENV{HTTPS_CA_FILE}   = 'certs/ca-bundle.crt';
	 $ENV{HTTPS_CA_DIR}    = 'certs/';

	 $ENV{HTTPS_PKCS12_FILE}     = 'certs/pkcs12.pkcs12';

       This perl module provides support for the https protocol under LWP, so that a LWP::UserA-
       gent can make https GET & HEAD & POST requests. Please see perldoc LWP for more informa-
       tion on POST requests.

       The Crypt::SSLeay package contains Net::SSL, which is automatically loaded by LWP::Proto-
       col::https on https requests, and provides the necessary SSL glue for that module to work
       via these deprecated modules:


       Work on Crypt::SSLeay has been continued only to provide https support for the LWP - lib-
       www perl libraries.  If you want access to the OpenSSL API via perl, check out Sampo's


       You must have OpenSSL or SSLeay installed before compiling this module.	You can get the
       latest OpenSSL package from:


       When installing openssl make sure your config looks like:

	 > ./config --openssldir=/usr/local/openssl
	 > ./config --openssldir=/usr/local/ssl

	 > make
	 > make test
	 > make install

       This way Crypt::SSLeay will pick up the includes and libraries automatically.  If your
       includes end up going into a separate directory like /usr/local/include, then you may need
       to symlink /usr/local/openssl/include to /usr/local/include


       The latest Crypt::SSLeay can be found at your nearest CPAN, and also:


       Once you have downloaded it, Crypt::SSLeay installs easily using the make or nmake com-
       mands as shown below.

	 > perl Makefile.PL
	 > make
	 > make test
	 > make install

	 * use nmake for win32

	 !!! NOTE for Win32 users, few people seem to be able to build
	 W  Crypt::SSLeay successfully on that platform.  You don't need
	 I  to because ActiveState has already compiled it for you,
	 N  and is available for their perl builds 618 & 522 as a ppm
	 3  install.  It may also be available for their latest build.
	 2  Keywords: WinNT, Win95, Win98, 95, 98, NT, 2000
	 !!!	      Please see http://www.activestate.com/

       LWP::UserAgent and Crypt::SSLeay have their own versions of proxy support.  Please read
       these sections to see which one may be right for you.

       LWP::UserAgent Proxy Support

       LWP::UserAgent has its own methods of proxying which may work for you and is likely incom-
       patible with Crypt::SSLeay proxy support.  To use LWP::UserAgent proxy support, try some-
       thing like:

	 my $ua = new LWP::UserAgent;
	 $ua->proxy([qw( https http )], "$proxy_ip:$proxy_port");

       At the time of this writing, libwww v5.6 seems to proxy https requests fine with an Apache
       mod_proxy server.  It sends a line like:

	 GET https://www.nodeworks.com HTTP/1.1

       to the proxy server, which is not the CONNECT request that some proxies would expect, so
       this may not work with other proxy servers than mod_proxy.  The CONNECT method is used by
       Crypt::SSLeay's internal proxy support.

       Crypt::SSLeay Proxy Support

       For native Crypt::SSLeay proxy support of https requests, you need to set an environment
       variable HTTPS_PROXY to your proxy server & port, as in:

	 $ENV{HTTPS_PROXY} = 'http://proxy_hostname_or_ip:port';

       Use of the HTTPS_PROXY environment variable in this way is similar to LWP::UserA-
       gent->env_proxy() usage, but calling that method will likely override or break the
       Crypt::SSLeay support, so do not mix the two.

       Basic auth credentials to the proxy server can be provided this way:

	 $ENV{HTTPS_PROXY_USERNAME} = 'username';
	 $ENV{HTTPS_PROXY_PASSWORD} = 'password';

       For an example of LWP scripting with Crypt::SSLeay native proxy support, please see the
       source of the ./lwp-ssl-test script in the Crypt::SSLeay distribution.

       Certificate support is new provided by patches from Tobias Manthey.  Is ALPHA as of .25,
       but looking pretty stable as of .29.

       PEM encoded certificate and private key files may be used like this:

	 $ENV{HTTPS_CERT_FILE} = 'certs/notacacert.pem';
	 $ENV{HTTPS_KEY_FILE}  = 'certs/notacakeynopass.pem';

       You may test your files with the ./net_ssl_test program by issuing a command like:

	 ./net_ssl_test -cert=certs/notacacert.pem -key=certs/notacakeynopass.pem -d GET $HOST_NAME

       Additionally, if you would like to tell the client where the CA file is, you may set
       these.  These *CA* configs are ALPHA as of version .29.

	 $ENV{HTTPS_CA_FILE} = "some_file";
	 $ENV{HTTPS_CA_DIR}  = "some_dir";

       There is no sample CA cert file at this time for testing, but you may configure
       ./net_ssl_test to use your CA cert with the -CAfile option.

       Creating a Test Certificate

       To create simple test certificates with openssl, you may:

	    /usr/local/openssl/bin/openssl req -config /usr/local/openssl/openssl.cnf -new -days 365 -newkey rsa:1024 -x509 -keyout notacakey.pem -out notacacert.pem

       To remove the pass phrase from the key file, execute this:
	    /usr/local/openssl/bin/openssl rsa -in notacakey.pem -out notacakeynopass.pem


       New as of version .45 is PKCS12 certificate support thanks to Daisuke Kuroda The direc-
       tives for enabling use of these certificates is:

	 $ENV{HTTPS_PKCS12_FILE}     = 'certs/pkcs12.pkcs12';

       Use of this type of certificate will take precedence over previous certificate settings

       Crypt::SSLeay tries very hard to connect to ANY SSL web server trying to accomodate
       servers that are buggy, old or simply not standards compliant.  To this effect, this mod-
       ule will try SSL connections in this order:

	 SSL v23  - should allow v2 & v3 servers to pick their best type
	 SSL v3   - best connection type
	 SSL v2   - old connection type

       Unfortunately, some servers seem not to handle a reconnect to SSL v3 after a failed con-
       nect of SSL v23 is tried, so you may set before using LWP or Net::SSL:


       so that a SSL v3 connection is tried first.  At this time only a SSL v2 connection will be
       tried after this, as the connection attempt order remains unchanged by this setting.

	This module has been compiled on the following platforms:

	PLATFORM       CPU     SSL	       PERL	VER    DATE	       WHO
	--------       ---     ---	       ----	---    ----	       ---
	WinNT SP6      x86     OpenSSL 0.9.6a  5.00601	.45    2002-08-01      Joshua Chamas
	Linux 2.4.7    x86     OpenSSL 0.9.6d  5.00800	.45    2002-08-01      Joshua Chamas
	Linux 2.4.7    x86     OpenSSL 0.9.6   5.00601	.39    2002-06-23      Joshua Chamas
	Solaris 2.8    Sparc   ?	       5.00503	.37    2002-05-31      Christopher Biow
	OpenBSD 2.8    Sparc   ?	       5.00600	.25    2001-04-11      Tim Ayers
	Linux 2.2.14   x86     OpenSSL 0.9.6   5.00503	.25    2001-04-10      Joshua Chamas
	WinNT SP6      x86     OpenSSL 0.9.4   5.00404	.25    2001-04-10      Joshua Chamas
	Solaris 2.7    Sparc   OpenSSL 0.9.6   5.00503	.22    2001-03-01      Dave Paris
	AIX 4.3.2      RS/6000 OpenSSL 0.9.6   5.6.0	.19    2001-01-08      Peter Heimann
	Solaris 2.6    x86     OpenSSL 0.9.5a  5.00501	.17    2000-09-04      Joshua Chamas
	Linux 2.2.12   x86     OpenSSL 0.9.5a  5.00503	.16    2000-07-13      David Harris
	FreeBSD 3.2    ?x86    OpenSSL 0.9.2b  5.00503	?      1999-09-29      Rip Toren
	Solaris 2.6    ?Sparc  OpenSSL 0.9.4   5.00404	?      1999-08-24      Patrick Killelea
	FreeBSD 2.2.5  x86     OpenSSL 0.9.3   5.00404	?      1999-08-19      Andy Lee
	Solaris 2.5.1  USparc  OpenSSL 0.9.4   5.00503	?      1999-08-18      Marek Rouchal
	Solaris 2.6    x86     SSLeay 0.8.0    5.00501	?      1999-08-12      Joshua Chamas
	Linux 2.2.10   x86     OpenSSL 0.9.4   5.00503	?      1999-08-11      John Barrett
	WinNT SP4      x86     SSLeay 0.9.2    5.00404	?      1999-08-10      Joshua Chamas

       Win32, WinNT, Win2000, can't build

       If you cannot get it to build on your windows box, try ActiveState perl, at least their
       builds 522 & 618 are known to have a ppm install of Crypt::SSLeay available.  Please see
       http://www.activestate.com for more info.

       AIX 4.3.2 - Symbol Error: __umoddi3 : referenced symbol not found

       The __umoddi3 problem applies here as well when compiling with gcc.

       Alternative solution: In Makefile.PL, prepend "-L"/usr/local/<path to your gcc lib>/<ver-
       sion> to the $LIBS value. Add after line 82:

	$LIBS = '-L' . dirname(`gcc -print-libgcc-file-name`) . ' ' . $LIBS;

       Solaris x86 - Symbol Error: __umoddi3 : referenced symbol not found


       On Solaris x86, the default PERL configuration, and preferred, is to use the ld linker
       that comes with the OS, not gcc.  Unfortunately during the OpenSSL build process, gcc gen-
       erates in libcrypto.a, from bn_word.c, the undefined symbol __umoddi3, which is supposed
       to be later resolved by gcc from libgcc.a

       The system ld linker does not know about libgcc.a by default, so when building
       Crypt::SSLeay, there is a linker error for __umoddi3


       The fix for this symlink your libgcc.a to some standard directory like /usr/local/lib, so
       that the system linker, ld, can find it when building Crypt::SSLeay.

       FreeBSD 2.x.x / Solaris - ... des.h:96 #error _ is defined ...

       If you encounter this error: "...des.h:96: #error _ is defined, but some strange defini-
       tion the DES library cannot handle that...," then you need to edit the des.h file and com-
       ment out the "#error" line.

       Its looks like this error might be common to other operating systems, and that occurs with
       OpenSSL 0.9.3.  Upgrades to 0.9.4 seem to fix this problem.

       SunOS 4.1.4, Perl 5.004_04 - ld.so: Undefined symbol: _CRYPT_mem_ctrl

       Problems: (initial build was fine, but execution of Perl scripts had problems)

       Got a message "ld.so: Undefined symbol: _CRYPT_mem_ctrl" solution:  In the Makefile, com-
       ment out the line with "-fpic"  (also try changing to "-fPIC", and this works also, not
       sure if one is preferred).

       Many thanks to Gisle Aas for the original writing of this module and many others including
       libwww for perl.  The web will never be the same :)

       Ben Laurie deserves kudos for his excellent patches for better error handling, SSL infor-
       mation inspection, and random seeding.

       James Woodyatt is a champ for finding a ridiculous memory leak that has been the bane of
       many a Crypt::SSLeay user.

       Thanks to Bryan Hart for his patch adding proxy support, and thanks to Tobias Manthey for
       submitting another approach.

       Thanks to Alex Rhomberg for Alpha linux ccc patch.

       Thanks to Tobias Manthey for his patches for client certificate support.

       Thanks to Gamid Isayev for CA cert support and insight into error messaging.

       Thanks to Jeff Long for working through a tricky CA cert SSLClientVerify issue.

       Thanks to Chip Turner for patch to build under perl 5.8.0

       For OpenSSL and Crypt::SSLeay support, please email the openssl user mailing list at

       Emails to the list sent with at least Crypt::SSLeay in the subject line will be responded
       to more quickly by myself.  Please make the subject line informative like

	 Subject: [Crypt::SSLeay] compile problems on Solaris

       This module was originally written by Gisle Aas, and I am now maintaining it.

	Copyright (c) 1999-2002 Joshua Chamas.
	Copyright (c) 1998 Gisle Aas.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

perl v5.8.0				    2002-08-02					SSLeay(3)
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