[openstack-dev] Barbican : Unable to store the secret when Barbican was Integrated with SafeNet HSM

John Vrbanac john.vrbanac at RACKSPACE.COM
Sun Jul 19 04:12:31 UTC 2015


Asha,

It looks like you don't have your mkek label correctly configured. Make sure that the mkek_label and hmac_label values in your config correctly reflect the keys that you've generated on your HSM.

The plugin will cache the key handle to the mkek and hmac when the plugin starts, so if it cannot find them, it'll fail to load the plugin altogether.


If you need help generating your mkek and hmac, refer to http://docs.openstack.org/developer/barbican/api/quickstart/pkcs11keygeneration.html for instructions on how to create them using a script.


As far as who uses HSMs, I know we (Rackspace) use them with Barbican.


John Vrbanac
________________________________
From: Asha Seshagiri <asha.seshagiri at gmail.com>
Sent: Saturday, July 18, 2015 8:47 PM
To: openstack-dev
Cc: Reller, Nathan S.
Subject: [openstack-dev] Barbican : Unable to store the secret when Barbican was Integrated with SafeNet HSM

Hi All ,

I have configured Barbican to integrate with SafeNet  HSM.
Installed safenet client libraries , registered the barbican machine to point to HSM server  and also assigned HSM partition.

The following were the changes done in barbican.conf file


# ================= Secret Store Plugin ===================
[secretstore]
namespace = barbican.secretstore.plugin
enabled_secretstore_plugins = store_crypto

# ================= Crypto plugin ===================
[crypto]
namespace = barbican.crypto.plugin
enabled_crypto_plugins = p11_crypto

[p11_crypto_plugin]
# Path to vendor PKCS11 library
library_path = '/usr/lib/libCryptoki2_64.so'
# Password to login to PKCS11 session
login = 'test123'
# Label to identify master KEK in the HSM (must not be the same as HMAC label)
mkek_label = 'an_mkek'
# Length in bytes of master KEK
mkek_length = 32
# Label to identify HMAC key in the HSM (must not be the same as MKEK label)
hmac_label = 'my_hmac_label'
# HSM Slot id (Should correspond to a configured PKCS11 slot). Default: 1
slot_id = 1

Unable to store the secret when Barbican was integrated with HSM.

[root at HSM-Client crypto]# curl -X POST -H 'content-type:application/json' -H 'X-Project-Id:12345' -d '{"payload": "my-secret-here", "payload_content_type": "text/plain"}' http://localhost:9311/v1/secrets
{"code": 500, "description": "Secret creation failure seen - please contact site administrator.", "title": "Internal Server Error"}[root at HSM-Client crypto]#


Please find the logs below :

2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils [req-354affce-b3d6-41fd-b050-5e5c604004eb - 12345 - - -] Problem seen creating plugin: 'p11_crypto'
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils Traceback (most recent call last):
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils   File "/root/barbican/barbican/plugin/util/utils.py", line 42, in instantiate_plugins
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils     plugin_instance = ext.plugin(*invoke_args, **invoke_kwargs)
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils   File "/root/barbican/barbican/plugin/crypto/p11_crypto.py", line 70, in __init__
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils     conf.p11_crypto_plugin.hmac_label)
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils   File "/root/barbican/barbican/plugin/crypto/pkcs11.py", line 344, in cache_mkek_and_hmac
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils     self.get_mkek(self.current_mkek_label, session)
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils   File "/root/barbican/barbican/plugin/crypto/pkcs11.py", line 426, in get_mkek
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils     raise P11CryptoKeyHandleException()
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils P11CryptoKeyHandleException: No key handle was found
2015-07-18 17:15:32.642 29838 ERROR barbican.plugin.util.utils
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers [req-354affce-b3d6-41fd-b050-5e5c604004eb - 12345 - - -] Secret creation failure seen - please contact site administrator.


(I am not sure why we are geting CryptoPluginNotFound: Crypto plugin not found. Exception since the changes is able to hit the p11_crypto.py code)

2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers Traceback (most recent call last):
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/api/controllers/__init__.py", line 104, in handler
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     return fn(inst, *args, **kwargs)
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/api/controllers/__init__.py", line 90, in enforcer
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     return fn(inst, *args, **kwargs)
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/api/controllers/__init__.py", line 146, in content_types_enforcer
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     return fn(inst, *args, **kwargs)
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/api/controllers/secrets.py", line 329, in on_post
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     transport_key_id=data.get('transport_key_id'))
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/plugin/resources.py", line 104, in store_secret
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     secret_model, project_model)
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/plugin/resources.py", line 267, in _store_secret_using_plugin
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     secret_metadata = store_plugin.store_secret(secret_dto, context)
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/plugin/store_crypto.py", line 77, in store_secret
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     crypto.PluginSupportTypes.ENCRYPT_DECRYPT
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers   File "/root/barbican/barbican/plugin/crypto/manager.py", line 80, in get_plugin_store_generate
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers     raise crypto.CryptoPluginNotFound()
2015-07-18 17:15:32.643 29838 ERROR barbican.api.controllers CryptoPluginNotFound: Crypto plugin not found.

Had chance to go though the code as to why are we geting the exception : P11CryptoKeyHandleException: No key handle was found .
It is because returned_count[0] == 0 .It needs to be 0 in order for the mkek to be created .From what I understand is that by default all the ffi variables would have the value 0 . I am not sure why the check returned_count[0] == 1: has been put .

if returned_count[0] == 1:

        key = object_handle_ptr[0]
        rv = self.lib.C_FindObjectsFinal(session)
        self.check_error(rv)
        if returned_count[0] == 1:

        return key
        elif returned_count[0] == 0:
        return None
Need Help .Any help would highly be appreciated .It is very critical for us to integrate with Barbican
Also would like to know if any one has integrated Barbican with HSM.

--
Thanks and Regards,
Asha Seshagiri
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