in src/main/java/org/apache/sling/discovery/base/connectors/ping/TopologyRequestValidator.java [123:133]
public TopologyRequestValidator(BaseConfig config) {
trustEnabled = false;
encryptionEnabled = false;
if (config.isHmacEnabled()) {
trustEnabled = true;
sharedKey = config.getSharedKey();
interval = config.getKeyInterval();
encryptionEnabled = config.isEncryptionEnabled();
}
deactivated = false;
}