openstack Queens keystone

yum install openstack-keystone httpd mod_wsgi -y

--> Finished Dependency Resolution

Error: Package: python2-pysaml2-3.0.2-2.el7.noarch (RHEL-Repository)
           Requires: pycrypto >= 2.5
 You could try using --skip-broken to work around the problem

 You could try running: rpm -Va --nofiles --nodigest

安装如下包：

python-crypto-2.6.1-1.el7.centos.x86_64.rpm