import from HEAD:
authorfcusack <fcusack>
Fri, 17 Feb 2006 01:33:55 +0000 (01:33 +0000)
committerfcusack <fcusack>
Fri, 17 Feb 2006 01:33:55 +0000 (01:33 +0000)
commit19dce8b3b729d8307676061b971b7eac997441f1
tree78453abcf353adad934f80fef0ce45b3308c0bfd
parent3509a1eed1cb56c944b2463f8900f503c23b86ff
parentb9eb3d2b2b585a9a609c004bb753a989a37e890e
import from HEAD:
Append first 2 username chars to challenge.  The previous routine
created a fixed challenge, which led to a fixed response, which
was all 0's!  Thanks to David Mitchell for spotting this.