Apache and SSL Presented by Paul Weinstein, Waubonsie Consulting, O’Reilly Open Source Convention July 24, 2002

Apache and SSL - Paul Weinstein Hello World Introduction What Will Be Covered oReview of SSL oQuick History of Apache and SSL oApache 1.3.x oApache 2.0.x oCool Tricks of Apache and SSL What Won’t Be Covered

Apache and SSL - Paul Weinstein Disclaimer It should be noted that this presentation does not cover all issues relating to securing networked based machines and their content. This presentation is designed only to introduce basic concepts and configuration of Apache and SSL.

Apache and SSL - Paul Weinstein SSL and TLS: Secure Sockets Layer (SSL), developed by Netscape Communications, and Transport Layer Security (TLS), the open-standard replacement for SSL from the Internet Engineering Task Force, are the two protocols that add encryption and authentication to TCP/IP.

Apache and SSL - Paul Weinstein SSL and TLS: Two Main Features Ciphers; which enable the encryption of data between the client and server. Digital Certificates; which provide a method of authentication of a client and server.

Apache and SSL - Paul Weinstein SSL and TLS: Ciphers Symmetric (a.k.a. Secret-Key) Asymmetric (a.k.a. Public-Key)

Apache and SSL - Paul Weinstein SSL and TLS: Digital Certificates Advantage of Public-Key Encryption Server Certificate Client Certificate Root Certificate Certificate Authority oPublic Certificate Authority oPrivate Certificate Authority

Apache and SSL - Paul Weinstein Apache and SSL: A Timeline

Apache and SSL - Paul Weinstein * Platform Dependent mod_ssl Support for SSL v2, v3 and TLS v1 Advance pass-phrase handling for private keys X.509 based digital certificates, certificate generation, certificate revocation list Support for crypto acceleration hardware * Backward compatibility

Apache and SSL - Paul Weinstein * Source: E-Soft June 2002 Report, mod_ssl Most Popular SSL Solution for Apache o1,098,542 of 4,577,603 or 23.99%* Second Only to PHP and Perl Overall o 43.71% and 24.11%*

Apache and SSL - Paul Weinstein Apache 1.3.x: mod_ssl Integration oNeeds EAPI oCan Build as a DSO oOpenSSL Toolkit

Apache and SSL - Paul Weinstein Supports New Apache 2.0 Architecture Included with the Apache 2.0.x source code To add mod_ssl when building Apache o--enable-ssl o--with-ssl=/path/to/OpenSSL/lib Apache 2.0.x: mod_ssl

Apache and SSL - Paul Weinstein Transacting of payment information for consumer good(s) in a secure manner between the customer and the business. Apache and SSL: Cool Tricks - The Ubiquitous Online Store

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - The Ubiquitous Online Store What We Need: oEnable mod_ssl oRequest a server certificate from a public certificate authority oInstall server certificate oAdd a CGI script to collect data oConfigure access to CGI script via HTTPS

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - The Ubiquitous Online Store What We Get:

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - The Ubiquitous Online Store What We Get: oThe communication with the store is secure. oThe server on the other end, decrypting the data is in fact the online store as identified by the server’s digital certificate and authenticated by a trusted third party.

Apache and SSL - Paul Weinstein Transacting of organizational information in a secure manner between the organization’s groups and individuals. Apache and SSL: Cool Tricks - An Organization’s Intranet

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - An Organization’s Intranet What We Need: oCreate a private certificate authority using OpenSSL oEnable mod_ssl oRequest a server certificate from the private certificate authority oInstall server certificate

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - An Organization’s Intranet What We Need: oAdd a CGI script to collect data oConfigure access to CGI script via HTTPS oInstall private certificate authority's root certificate oConfigure server to authenticate clients based on certificates from private certificate authority

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - An Organization’s Intranet What We Need: oSign client certificate requests & install in client’s web browsers oInstall private certificate authority’s root certificate oAuthenticate servers based on private certificate authority

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - An Organization’s Intranet What We Get:

Apache and SSL - Paul Weinstein Apache and SSL: Cool Tricks - An Organization’s Intranet What We Get: oThe communication within the organization is secure. oThe server on one end is in fact organization’s server - the information from is valid. oThe client on the other end is in fact a member of the organization - the information has not been compromised.

Apache and SSL - Paul Weinstein Review of Apache and SSL SSL and TLS History of Apache and SSL Apache 1.3.x Apache 2.0.x Cool Tricks of Apache and SSL

Apache and SSL - Paul Weinstein Citation Engelschall, Ralf User Manual mod_ssl Version 2.8 Jan mod_ssl: The Apache Interface to OpenSSL

Apache and SSL - Paul Weinstein Citation Weinstein, Paul. "Web Security: Encryption & Authentication." Daemonnews (May 2001): 15 pars. Weinstein, Paul "Web Security: Apache and mod_ssl." Daemonnews (June 2001): 15 pars.

Apache and SSL - Paul Weinstein Suggested References This Presentation: oArticle: Weinstein, Paul. “Apache and SSL” O’Reilly Network: ONLamp.com (April 2002): 24 pars.

Apache and SSL - Paul Weinstein Suggested References This Presentation: oSlides: (HTML) (PDF)

Apache and SSL - Paul Weinstein Suggested References Apache Project, Apache Week,

Apache and SSL - Paul Weinstein Suggested References mod_ssl Project, oMailing Lists, List Archives: o

Apache and SSL - Paul Weinstein Suggested References OpenSSL Project, oMailing Lists, List Archives: o o o o