2014-01-08 23:23:38.822 15980 ERROR keystone.token.providers.pki [-] Unable to sign token
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki Traceback (most recent call last):
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki   File "/opt/stack/keystone/keystone/token/providers/pki.py", line 39, in _get_token_id
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki     CONF.signing.keyfile)
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki   File "/opt/stack/keystone/keystone/common/cms.py", line 144, in cms_sign_token
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki     output = cms_sign_text(text, signing_cert_file_name, signing_key_file_name)
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki   File "/opt/stack/keystone/keystone/common/cms.py", line 139, in cms_sign_text
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki     raise environment.subprocess.CalledProcessError(retcode, "openssl")
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki CalledProcessError: Command 'openssl' returned non-zero exit status 3
2014-01-08 23:23:38.822 15980 TRACE keystone.token.providers.pki
2014-01-08 23:23:38.823 15980 WARNING keystone.common.wsgi [-] Unable to sign token.