Provide an example of at least one application (if there are any such applications) where:

(a) data integrity is more important than data confidentiality;

(b) entity authentication is more important than data origin authentication;

(c) entity authentication and data origin authentication are both required;

(d) data origin authentication is necessary but non-repudiation is not necessarily required;

(e) data integrity is required but not data origin authentication;

(f) data origin authentication is required but not data integrity;

(g) entity authentication is provided using more than one mechanism.