Secure Sockets Layer (Ssl) Support; Https; Generating An Encryption Key; Generating A Self-Signed Certificate With Openssl - Tripp Lite B092-016 Owner's Manual

Chapter 15: Advanced Configuration

15.7 Secure Sockets Layer (SSL) Support

Secure Sockets Layer (SSL) is a protocol developed by Netscape for transmitting private documents via the Internet. SSL
works by using a private key to encrypt data that's transferred over the SSL connection.
The Console Server includes OpenSSL. The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade,
full-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.
OpenSSL is based on the excellent SSLeay library developed by Eric A. Young and Tim J. Hudson. The OpenSSL toolkit
is licensed under an Apache-style licence, which basically means that you are free to get and use it for commercial and
non-commercial purposes subject to some simple license conditions. In the Console Server OpenSSL is used primarily in
conjunction with 'http' in order to have secure browser access to the GUI management console across insecure networks.
More documentation on OpenSSL is available from:
http://www.openssl.org/docs/apps/openssl.html
http://www.openssl.org/docs/HOWTO/certificates.txt

15.8 HTTPS

The Management Console can be served using HTTPS by running the webserver via sslwrap. The server can be launched on
request using inetd.
The HTTP server provided is a slightly modified version of the fnord-httpd from http://www.fefe.de/fnord/
The SSL implementation is provided by the sslwrap application compiled with OpenSSL support. More detailed documentation
can be found at http://www.rickk.com/sslwrap/
If your default network address is changed or the unit is to be accessed via a known Domain Name you can use the following
steps to replace the default SSL Certificate and Private Key with ones tailored for your new address.

15.8.1 Generating an encryption key

To create a 1024 bit RSA key with a password issue the following command on the command line of a linux host with the
openssl utility installed:
openssl genrsa -des3 -out ssl_key.pem 1024

15.8.2 Generating a self-signed certificate with OpenSSL

This example shows how to use OpenSSL to create a self-signed certificate. OpenSSL is available for most Linux distributions
via the default package management mechanism. (Windows users can check http://www.openssl.org/related/binaries.html)
To create a 1024 bit RSA key and a self-signed certificate issue the following openssl command from the host you have
openssl installed on:
openssl req -x509 -nodes -days 1000 \
You will be prompted to enter a lot of information. Most of it doesn't matter, but the "Common Name" should be the domain
name of your computer. When you have entered everything, the certificate will be created in a file called ssl_cert.pem.
-newkey rsa:1024 -keyout ssl_key.pem -out ssl_cert.pem
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