tree 15d072d0f31a3d40740fbb2144c678e3764d365f
parent dc25ddf7dd620f73025ebc645eb441f5bac94495
author Zhiyi Zhang <zhiyi@cs.ucla.edu> 1603231752 -0700
committer Zhiyi Zhang <zhiyi@cs.ucla.edu> 1603231752 -0700

update crypto helpers

Change-Id: Ic20155d07db6ca311deb2e8705acc82da6959900