Digital Signature hashing function

We are a Federal government contractor, and according to NIST, “NIST encourages a rapid adoption of the SHA-2 hash functions for digital signatures, and, in any event, Federal agencies must stop relying on digital signatures that are generated using SHA-1 by the end of 2010.”

This means we need to be sure that our Notes digital signatures use (at least) SHA-2.

Can someone (David Kern?) confirm what we have for 8.5.1?

Thanks!