Retrieveing Websphere Commerce Merchant Key

Here is a snippet of code to retrieve Merchant key in websphere commerce 7

final com.ibm.commerce.security.keys.WCKey keyName = com.ibm.commerce.security.keys.WCKeyRegistry.getInstance().getKey("MerchantKey");
final String merchantKey = keyName.getValueAsString();
System.out.println("merchantKey= "+merchantKey);