Yes, Use those credentials,I successfully can login to VC.
vSphere Auto Deploy (Version: 5.1.0.4624) was installed on this VC.
C:\ProgramData\VMware\VMware vSphere Auto Deploy\ssl> dir
2011-09-30 13:36 1,050 rbd-ca.crt
2011-09-30 13:36 1,675 rbd-ca.key
2011-09-30 13:36 13 rbd-ca.srl
2013-03-22 10:00 0 rui.crt
2013-03-22 10:00 0 rui.key