Create a Symmetric Key to Encrypt Data Source Passwords

This applies to: Visual Data Discovery

Symphony provides a suite of prebuilt connectors that connect the Symphony Server directly to your data source. If a data store requires a connection password to access the data, the credential information is saved in Symphony's storage repository - PostgreSQL. Symphony uses symmetric encryption to store the credential information so that it can access the data store, as needed, while providing a level of security for the saved information.

Symphony administrators can generate their own KeyStore using a symmetric key algorithm. This capability provides an additional level of security in the connection to and access of the data sources.

A symmetric key can be generated using Oracle's keytool program, which is a key and certificate management tool. This tool manages a keystore (database) of cryptographic keys, X.509 certificate chains, and trusted certificates. Refer to Oracle documentation for additional details about this keytool program.

Use the latest Java SDK to install the keytool program (as older versions of the SDK may require different installation steps).

Remember that this user-generated keystore should be provided to Symphony after a new installation, prior to any connections being stored in Symphony. If a new user-generated key is provided after some connections are already stored, the passwords for these connections have to be resupplied to Symphony after the new key is provided.

Generate a Keystore with a Symmetric Key

Install the keytool program. Use the latest Java SDK to install the keytool program.

Enter the following command line to generate your symmetric key.

keytool -genseckey -alias <YourKeyAlias> -keyalg AES -keysize 256 -storetype jceks -keystore <YourKeyStoreName>.jks

Create a keystore password and press Enter to continue.
Create a key password and press Enter to continue.
Store the keystore file in a location where the Symphony Server can access. For example:
```
/etc/zoomdata/<YourKeyStoreName>.jks
```
Next, you need to edit the zoomdata.properties file to add in the parameters needed for Symphony to integrate your symmetric key. If you have already logged into Symphony, be sure to log out first and close the browser.
Edit (or create) the Symphony configuration file (zoomdata.properties):
```
vi /etc/zoomdata/zoomdata.properties
```
If the configuration file does not exist, this command creates it.

Incorporate instructions for accessing your newly generated keystore file into the .properties file as provided below:

keystore.location=file:/etc/zoomdata/<YourKeyStoreName>.jks

keystore.password=<YourKeyStorePassword>

keystore.key.alias=<YourKeyAlias>

keystore.key.password=<YourKeyPassword>

Restart Symphony Server. This ensures that the new keystore file is enabled and active within Symphony.

For the appropriate Linux commands, see Restart Symphony Microservices.

The symmetric key should now be active in Symphony. If you see any error messages after the restart, submit a request for assistance.