Kerchoff's Principles

Primary Task Response:

Please provide a detailed response to the below to include specific details and examples.

Auguste Kerchoff put forth a set of guidelines in the development of new algorithms or the evaluation of existing ones. While they are not required to be followed, they are still considered to be good advice or guidance.  Please explain Kerchoff’s six principles and make a case for both following them and not following them.  Please use sources to support your positions.