tree bc8e18f8f40a568d30781fc73ae296ee39b350f4
parent a63b7379e0d8e2ded9531895bc8c7ab9fc7f9f66
author Zhiyi Zhang <zhiyi@cs.ucla.edu> 1495231263 -0700
committer Zhiyi Zhang <zhiyi@cs.ucla.edu> 1495473778 -0700

Change the logic in credential challenge: credential cert can under different prefix

Change-Id: Ieab9d5e111c84da8ad7896b9fac8f28887da9f2d