Commit 13968f72 authored by Matt Tucker's avatar Matt Tucker Committed by matt

Improved SSLConfig loading of custom values (JM-39).


git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@698 b35dd754-fafc-0310-a699-88a17e54d16e
parent 7d6051f8
......@@ -10,15 +10,12 @@
<h2>Introduction</h2>
<p>
This document outlines how to configure your SSL setup. Jive
Messenger's SSL support
is built using the standard Java security SSL implementation
(javax.net.ssl.SSLServerSocket).
Java security allows implementations of the JVM flexibility in how
security is implemented.
Messenger's SSL support is built using the standard Java security
SSL implementation (javax.net.ssl.SSLServerSocket). Java security
allows implementations of the JVM flexibility in how security is implemented.
Unfortunately, the flexibility means there is no definitive mechanism
for configuring SSL security on
all JVMs. You must consult the documentation for your JVM in creating a
valid keystore and truststore
for configuring SSL security on all JVMs. You must consult the
documentation for your JVM in creating a valid keystore and truststore
and populating those with the SSL certificates needed for your
deployment. In this document, we will describe how use the standard JDK
1.5 tools to accomplish these tasks.
......@@ -29,77 +26,62 @@ A server SSL connection uses two sets of certificates to secure the
connection. The first set is called a "keystore". The keystore contains
the keys and certificates for the server. These security credentials
are used to prove to clients that the server is legitimately operating
on behalf of a particular domain.
If your server will only need to act as one domain, you only need one
key entry and certificate in the keystore.
on behalf of a particular domain. If your server will only need to act
as one domain, you only need one key entry and certificate in the keystore.
Keys are stored in the keystore under aliases. Each alias corresponds
to a domain name (e.g. "server.com").
</p>
<p>
The second set of certificates is called the "truststore" and is used
to verify that a client is legitimately
operating on behalf of a particular user. In the vast majority of
cases, the truststore is empty and the server
will not attempt to validate client connections using SSL. Instead, the
XMPP authentication process verifies users
to verify that a client is legitimately operating on behalf of a
particular user. In the vast majority of cases, the truststore is
empty and the server will not attempt to validate client connections
using SSL. Instead, the XMPP authentication process verifies users
in-band. However, you may wish to require SSL authentication for
certain clients when security is especially
important and the number of clients connection to the server is
relatively small.
certain clients when security is especially important and the number
of clients connection to the server is relatively small.
</p>
<p>
Certificates attempt to guarantee that a particular party is who they
claim to be.
Certificates are trusted based on who signed the certificate. If you
only require light security,
are deploying for internal use on trusted networks, etc. you can use
"self-signed" certificates.
claim to be. Certificates are trusted based on who signed the certificate.
If you only require light security, are deploying for internal use on
trusted networks, etc. you can use "self-signed" certificates.
Self-signed certificates encrypts the communication channel between
client and server. However
the client must verify the legitimacy of the self-signed certificate
through some other
channel. The most common client reaction to a self-signed certificate
is to ask the user whether
client and server. However the client must verify the legitimacy of the
self-signed certificate through some other channel. The most common client
reaction to a self-signed certificate is to ask the user whether
to trust the certificate, or to silently trust the certificate is
legitimate. Unfortunately, blindly accepting self-signed certificates
opens up the system to 'man-in-the-middle' attacks.
</p>
<p>
The advantage of a self-signed certificate is you can create them for
free which is great
when cost is a major concern, or for testing and evaluation. In
addition, you can safely
use a self-signed certificate if you can verify that the certificate
you're using is legitimate. So if
a system administrator creates a self-signed certificate, then
personally installs it on a client's
free which is great when cost is a major concern, or for testing and evaluation.
In addition, you can safely use a self-signed certificate if you can verify
that the certificate you're using is legitimate. So if a system administrator
creates a self-signed certificate, then personally installs it on a client's
truststore (so that the certificate is trusted) you can be assured that
the SSL connection will only
work between the client and the correct server.
the SSL connection will only work between the client and the correct server.
</p>
<p>
For higher security deployments, you should get your certificate signed
by a certificate authority (CA).
Clients truststores will usually contain the certificates of the major
CA's and can verify that a CA has
signed a certificate. This chain of trust allows clients to trust
certificate from servers they've never
interacted with before. Certificate signing is similar to a public
notary (with equivalent amounts of
verification of identity, record keeping, and costs).
by a certificate authority (CA). Clients truststores will usually contain
the certificates of the major CA's and can verify that a CA has signed a
certificate. This chain of trust allows clients to trust certificate from
servers they've never interacted with before. Certificate signing is similar
to a public notary (with equivalent amounts of verification of identity,
record keeping, and costs).
</p>
<h2>Sun JDK 1.5 security tools</h2>
<p>
The Sun JDK (version 1.5.x) ships with all the security tools you need
to configure SSL with Jive
Messenger. The most important is the <tt>keytool</tt> located in the <tt>JAVA_HOME/bin
directory</tt> of the JDK.
Sun JVMs persist keystores and truststores on the filesystem as
encrypted files. The <tt>keytool</tt> is used to
create, read, update, and delete entries in these files. Jive Messenger
ships with a self-signed "dummy" certificate
designed for initial evaluation testing. You will need to adjust the
default configuration for most deployments.
to configure SSL with Jive Messenger. The most important is the
<tt>keytool</tt> located in the <tt>JAVA_HOME/bin directory</tt> of the
JDK. Sun JVMs persist keystores and truststores on the filesystem as
encrypted files. The <tt>keytool</tt> is used to create, read, update,
and delete entries in these files. Jive Messenger ships with a self-signed
"dummy" certificate designed for initial evaluation testing. You will need
to adjust the default configuration for most deployments.
</p>
<p>
In order to configure SSL on your server you need complete the
......@@ -129,9 +111,8 @@ truststore settings.</li>
<h3>1 Decide on a Server Domain</h3>
<p>
The Messenger server domain should match the host name of the server;
for example, "server.com". Your
user accounts will have addresses with the format "user@server.com"
like email addresses. We'll assume
for example, "server.com". Your user accounts will have addresses with
the format "user@server.com" like email addresses. We'll assume
the domain is "server.com" for the rest of the examples.
</p>
<h3>2 Create a self-signed server certificate</h3>
......@@ -152,17 +133,14 @@ Now we'll create a certificate using the keytool:
<p><tt>keytool -genkey -keystore keystore -alias server.com</tt></p>
<p>
where you should substitute your server's name for <tt>server.com</tt>.
The keytool will
ask for the store password, then several pieces of information required
for the certificate.
Enter all the information and the keytool will ask you to verify the
information and set
a key password. <b>You must use the same key password as the store
password.</b> By default
you get this by simply hitting 'enter' when prompted for a key
password.</p>
<p>If you later change the keystore password remember to
change the entries' password as well using the keytool:</p>
The keytool will ask for the store password, then several pieces of
information required for the certificate. Enter all the information and
the keytool will ask you to verify the information and set a key password.
<b>You must use the same key password as the store password.</b> By default
you get this by simply hitting 'enter' when prompted for a key password.</p>
<p>If you later change the keystore password remember to change the entries'
password as well using the keytool:</p>
<p><tt>keytool -keypasswd -alias server.com -keystore keystore</tt>
</p>
<h3>3 Obtain a CA signed certificate</h3>
......@@ -213,20 +191,20 @@ Open the Jive Messenger Admin Console in your favorite
browser and add or change the following system properties:
</p>
<ul>
<li>xmpp.socket.ssl.active - set to 'true' to active SSL</li>
<li>xmpp.socket.ssl.port - the port to use for SSL (default is
<li>xmpp.socket.ssl.active -- set to 'true' to active SSL</li>
<li>xmpp.socket.ssl.port -- the port to use for SSL (default is
5223 for XMPP)</li>
<li>xmpp.socket.ssl.storeType - the store type used ("JKS" is
<li>xmpp.socket.ssl.storeType -- the store type used ("JKS" is
the Sun Java Keystore format used by the JDK keytool). If this property is
not defined, Messenger will assume a value of "jks".</li>
<li>xmpp.socket.ssl.keystore - The location of the keystore file
<li>xmpp.socket.ssl.keystore -- the location of the keystore file
relative to the <tt>MESSENGER_HOME</tt> root directory.</li>
<li>xmpp.socket.ssl.keypass - The keystore/key password you
<li>xmpp.socket.ssl.keypass -- the keystore/key password you
changed in step 2.</li>
<li>xmpp.socket.ssl.truststore - Leave blank to not use a
<li>xmpp.socket.ssl.truststore -- leave blank to not use a
truststore, otherwise the location of the truststore file relative to
the <tt>MESSENGER_HOME</tt> root directory.</li>
<li>xmpp.socket.ssl.trustpass - The truststore/key password you
<li>xmpp.socket.ssl.trustpass -- the truststore/key password you
changed in step 5.</li>
</ul>
You will need to restart the server after you have modified any of the above system properties.
......
......@@ -22,7 +22,7 @@ import java.net.ServerSocket;
import java.security.KeyStore;
/**
* Configuration of Messenger's SSL settings.
* Configuration of Jive Messenger's SSL settings.
*
* @author Iain Shigeoka
*/
......@@ -42,17 +42,21 @@ public class SSLConfig {
static {
String algorithm = JiveGlobals.getProperty("xmpp.socket.ssl.algorithm", "TLS");
String storeType = JiveGlobals.getProperty("xmpp.socket.ssl.storeType", "jks");
// Get the keystore location. The default location is security/keystore
keyStoreLocation = JiveGlobals.getProperty("xmpp.socket.ssl.keystore",
JiveGlobals.getMessengerHome() + File.separator + "resources" + File.separator +
"security" + File.separator + "keystore");
"resources" + File.separator + "security" + File.separator + "keystore");
keyStoreLocation = JiveGlobals.getMessengerHome() + File.separator + keyStoreLocation;
// Get the keystore password. The default password is "changeit".
keypass = JiveGlobals.getProperty("xmpp.socket.ssl.keypass", "changeit");
keypass = keypass.trim();
// Get the truststore location; default at security/truststore
trustStoreLocation = JiveGlobals.getProperty("xmpp.socket.ssl.truststore",
JiveGlobals.getMessengerHome() + File.separator + "resources" + File.separator +
"security" + File.separator + "truststore");
"resources" + File.separator + "security" + File.separator + "truststore");
trustStoreLocation = JiveGlobals.getMessengerHome() + File.separator + trustStoreLocation;
// Get the truststore passwprd; default is "changeit".
trustpass = JiveGlobals.getProperty("xmpp.socket.ssl.trustpass", "changeit");
trustpass = trustpass.trim();
......@@ -64,12 +68,16 @@ public class SSLConfig {
trustStore = KeyStore.getInstance(storeType);
trustStore.load(new FileInputStream(trustStoreLocation), trustpass.toCharArray());
sslFactory = (SSLJiveServerSocketFactory)
SSLJiveServerSocketFactory.getInstance(algorithm,
keyStore, trustStore);
sslFactory = (SSLJiveServerSocketFactory)SSLJiveServerSocketFactory.getInstance(
algorithm, keyStore, trustStore);
}
catch (Exception e) {
Log.error(e);
Log.error("SSLConfig startup problem.\n" +
" storeType: [" + storeType + "]\n" +
" keyStoreLocation: [" + keyStoreLocation + "]\n" +
" keypass: [" + keypass + "]\n" +
" trustStoreLocation: [" + trustStoreLocation+ "]\n" +
" trustpass: [" + trustpass + "]", e);
keyStore = null;
trustStore = null;
sslFactory = null;
......
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