What is the purpose of the hashcode used in Exchange OWA HTTP requests?

Question

This blog describes the URLs that are used in OWA and webservices. It also says that there is a hashcode that is used in conjunction with the throttling policy.

• Is this hashcode responsible for "securing" the throttling policy, and its current values for later processing by a CAS server?

• What format is this hashcode? (is it MD5, SHA1, etc?)

Answer 1

My (wild) guess is that the "hashcode" is just a reference key used by whatever system enforces the throttling, to quickly locate in an internal database (which could be an in-RAM hash table) the entry which keeps track of the "budget" allocated to each entity. Thus not a cryptographic hash at all.