API to set key AESCFB128 Key value

Now in confd, the key value need be explicitly set in confd.conf. it is not safe as usually key is secrete and should not stored in file.
So question is that, is there API to set this value in run-time?

/confdConfig/encryptedStrings/AESCFB128/key

Most of the confd.conf configurable parameters, including encryptedStrings, can be configured to be stored in CDB. Refer to Chapter 28.4.2, Storing ConfD configuration parameters in CDB, for more information. There is also an example under the confdconf/dyncfg that illustrates this feature.