NIST publishes new DSA draft

[David Shaw <dshaw@xxxxxxxxxxxxxxx>]

In the OpenPGP context, probably the most interesting bit is that the
160-bit hash limit has been removed.  The sizes supported are:

* 1024-bit key, 160-bit hash (the current DSA)
* 2048-bit key, 224-bit hash (presumably aimed at SHA-224)
* 2048-bit key, 256-bit hash (presumably aimed at SHA-256)
* 3072-bit key, 256-bit hash (presumably aimed at SHA-256)

It also adds the concept of using a larger hash than will fit by
taking the leftmost bits.

http://csrc.nist.gov/publications/drafts.html

David