There are lots of scenarios where you would want to let an untrusted intermediary handle critical operations for you without actually having to build trust with them.
Typical example: Certificate authorities distribute CRLs primarily through untrusted channels and third parties to lower their operating cost. The CRLs are signed so its a win-win for everybody.
[+] [-] rawnlq|11 years ago|reply
Or is the use case similar to why you would want to zero out the memory used to store password strings?
[+] [-] bren2013|11 years ago|reply
Typical example: Certificate authorities distribute CRLs primarily through untrusted channels and third parties to lower their operating cost. The CRLs are signed so its a win-win for everybody.