Deploy the Primetime DRM Key Server

Before deploying the Primetime DRM Key Server, make sure that you have installed the required versions of Java and Tomcat. See, DRM Key Server Requirements.

The Primetime DRM Key Server download includes faxsks.war. To deploy this WAR file, copy the file to Tomcat’s webapps directory. If you have previously deployed the WAR file, you may need to manually delete the unpacked WAR directory, faxsks in Tomcat’s webapps directory). To prevent Tomcat from unpacking WAR files, edit the server.xml file in Tomcat’s conf directory and set the unpackWARs attribute to false.

The Primetime DRM Key Server optionally uses a platform-specific library (jsafe.dll on Windows or libjsafe.so on Linux) for improved performance. Copy the appropriate library for your platform from thirdparty/cryptoj/platform to a location specified by the PATH environment variable (or LD_LIBRARY_PATH on Linux).

SSL configuration

SSL is required for Remote HTTPS key delivery. The SSL connections could be handled by the application server (i.e., by configuring SSL in Tomcat) or could be handled at another server (i.e., a Load balancer, SSL accelerator, or Apache). Remote HTTPS key delivery requires an SSL connection. The server needs an SSL certificate issued by a trusted CA.

There are a variety of options for configuring SSL. Below are examples for configuring SSL with client authentication in Apache and Tomcat.

The following example shows the Apache SSL configuration:

SSLEngineon
SSLCertificateFile "certs/server_cert.pem"
SSLCertificateKeyFile "certs/server_key.pem"
SSLOptions +StdEnvVars +FakeBasicAuth -ExportCertData +StrictRequire
SSLRequireSSL
ProxyRequests Off
ProxyPass /https://keyserver-name:port/
ProxyPassReverse /https://keyserver-name:port/

The following example shows the Tomcat SSL configuration. To generate certificate and key files:

Generate key:
 openssl genrsa -des3 -out server.key 1024
Generate CSR:
 openssl req -new -key server.key -out server.csr
Generate Certificate:
 openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.cer

When prompted for the common name, use your server’s Fully Qualified Domain Name (FQDN).

Copy server.cer, and server.key to the Tomcat directory. Specify the following Connector in conf/server.xml:

<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
 maxThreads="150" scheme="https" secure="true"
 sslProtocol="TLS"
 SSLCertificateFile="${catalina.base}/server.cer"
 SSLCertificateKeyFile="${catalina.base}/server.key"
 SSLPassword="password-for-key-file"
 SSLVerifyClient="require"/>

Java system properties

You have the option to set the following two Java system properties to modify the location of configuration and log files for the Primetime DRM Key Server:

• KeyServer.ConfigRoot - This directory contains all of the configuration files for the Primetime DRM Key Server. For details on the contents of these files, see Key Server configuration files. If not set, the default is CATALINA_BASE/keyserver.

• KeyServer.LogRoot - This is a log directory that contains iOS Key Server application logs. If not set, the default is the same as KeyServer.ConfigRoot

• XboxKeyServer.LogRoot - This is a log directory that contains the Xbox Key Server application logs. If not set, the default is same as KeyServer.ConfigRoot.

If you are using catalina.bat or catalina.sh to start Tomcat, these system properties can easily be set using the JAVA_OPTS environment variable. Any Java options set here will be used when Tomcat is started. For example, set:

JAVA_OPTS=-DKeyServer.ConfigRoot=”absolute-path-to-config-folder”
  -DKeyServer.LogRoot=”absolute-path-to-log-folder”

Primetime DRM credentials

To process key requests from Primetime DRM iOS and Xbox 360 clients, the Primetime DRM Key Server must be configured with a set of credentials issued by Adobe. These credentials can either be stored in PKCS#12 ( .pfx) files or on an HSM.

The .pfx files can be located anywhere, but for ease of configuration, Adobe recommends placing the .pfx files in the tenant’s configuration directory. For more information, see Key Server configuration files.

HSM configuration

If you choose to use an HSM to store your server credentials, you must load the private keys and certificates onto the HSM and create a pkcs11.cfg configuration file. This file must be located in the KeyServer.ConfigRoot directory. See the <Primetime DRM Key Server>/configs directory for an example PKCS 11 configuration file. For information on the format of pkcs11.cfg, see the Sun PKCS11 provider documentation.

To verify that your HSM and Sun PKCS11 configuration files are configured properly, you can use the following command from the directory where the pkcs11.cfg file is located ( keytool is installed with the Java JRE and JDK):

keytool -keystore NONE -storetype PKCS11 -providerClass sun.security.pkcs11.SunPKCS11
  -providerArg pkcs11.cfg -list

If you see your credentials in the list, the HSM is configured properly and the Key Server will be able to access the credentials.

Key Server configuration files

The Primetime DRM Key Server requires two types of configuration files:

• A global configuration file, flashaccess-keyserver-global.xml
• A tenant configuration file for each tenant, flashaccess-keyserver-tenant.xml

If changes are made to the configuration files, the server must be restarted for the changes to take effect.

To avoid making passwords available in clear text in the configuration files, all passwords specified in the global and tenant configuration files must be encrypted. For more information on encrypting passwords, see Password Scrambler in Using the Primetime DRM Server for Protected Streaming.

Configuration directory structure

The configuration directories have the following structure:

KeyServer.ConfigRoot/
--flashaccess-keyserver-global.xml
--pkcs11.cfg (optional)
--faxsks/
----tenants/
------tenantname/
---------flashaccess-keyserver-tenant.xml
---------credential.pfx (optional)

Global configuration file

The flashaccess-keyserver-global.xml configuration file contains settings that apply to all tenants of the Key Server. This file must be located in KeyServer.ConfigRoot. See the configs directory for an example global configuration file. The global configuration file includes the following:

• Logging - Specifies the logging level and how frequently log files are rolled.
• HSM password - Required only if an HSM is used to store server credentials.

See the comments in the example global configuration file located in <Primetime DRM Key Server>/configs for more details.

Tenant configuration files

The flashaccess-ioskeyserver-tenant.xml and flashaccess-xboxkeyserver-tenant.xml configuration files contain settings that apply to a specific tenant of the Primetime DRM Key Server. Each tenant has its own instance of these configuration files located in <KeyServer.ConfigRoot>/faxsks/tenants/tenantname. See the configs/faxsks/tenants/sampletenant directory for an example tenant configuration file.

You can specify all file paths in the tenant configuration file as either absolute paths or paths relative to the tenant’s configuration directory ( <KeyServer.ConfigRoot>/faxsks/tenants/tenantname).

All tenant configuration files include:

• Key Server Credentials - Specifies one or more Key Server credentials (certificate and private key) issued by Adobe. Can be specified as a path to a .pfx file and a password, or an alias for a credential stored on an HSM. Several such credentials can be specified here, either as file paths, or key aliases, or both.

The iOS tenant configuration file includes:

• Key Delivery Window - (Optional) Specifies key delivery request timestamp validity window (in seconds). Default value is 500 seconds.

The Xbox 360 tenant configuration file includes:

• XSTS Credential - Specifies the application developer’s credential used to decrypt XSTS tokens
• XSTS Signing Certificate - Specifies the certificate used to verify the signature on XSTS tokens.
• Packager Allow list - Packager certificates that are trusted by the Key Server. If there are no packager certificates contained in the list, then all packager certificates will be trusted.

Log files

The log files generated by the Primetime DRM Key Server application ( flashaccess-ioskeyserver_.log and flashaccess-xboxkeyserver_.log) will be located in the directory specified by KeyServer.LogRoot.

The log files are distinguished by client type. There are two logs per client type:

• An access log - Monitors requests and responses only.
• A context log - Contains detailed error messages and stack traces.

Starting the Key Server

To start the Key Server, start Tomcat.

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