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+Requirements references related to OPNFV Audit
+
+------------------
+Source information
+------------------
+
+http://www.etsi.org/deliver/etsi_gs/NFV-INF/001_099/003/01.01.01_60/gs_NFV-INF003v010101p.pdf
+http://www.etsi.org/deliver/etsi_gs/NFV-INF/001_099/004/01.01.01_60/gs_NFV-INF004v010101p.pdf
+
+* ETSI GS NFV-SEC 003 V1.1.1 (2014-12)
+
+  - Network Functions Virtualisation NFV);
+  - NFV Security; Security and Trust Guidance
+  - NFV-SEC-003_.
+
+
+.. _NFV-SEC-003: http://www.etsi.org/deliver/etsi_gs/NFV-SEC/001_099/003/01.01.01_60/gs_NFV-SEC003v010101p.pdf
+* ETSI GS NFV 004 V1.1.1 (2013-10)
+
+  - Network Functions Virtualisation (NFV);
+  - Virtualisation Requirements
+  - NFV-SEC-004_.
+
+.. _NFV-SEC-004: http://www.etsi.org/deliver/etsi_gs/NFV/001_099/004/01.01.01_60/gs_NFV004v010101p.pdf
+
+Requirements on Auditing framework
+----------------------------------
+
+Audit records shall be maintained within protected binary logs so that the record of
+malicious actions cannot be deleted from the logs.
+
+Necessary auditable events
+--------------------------
+
+* access control management
+
+  - Adding a user account
+  - Modifying user account
+  - Deleting a user account
+  - login event
+  - logout event
+  - IP whitelisting update
+  - IP blacklisting update
+
+* VNFC Creation
+
+  - The instantiation of a newly-defined VNFC
+  - The instantiation of a VNFC with pre-configured state
+  - The cloning of an existing VNFC
+
+* VNFC Deletion
+
+  - The deletion of VNFC and of all of its instances (e.g. snapshots, backups, archives, cloned images)
+
+* Software management
+
+  - patching e.g. opreating system, drivers, VM components
+  - dynamic updates to the configuration e.g. DNS, DHCP
+  - application software updates
+  - software component updates
+
+* Data management
+
+  - Root level access to NFVI file system
+  - User level access to NFVI file system
+  - Secured wipe, disk and memory
+  - Verified destruction
+  - Certificate revocation
+
+* VNFC Migration
+
+  - VNFC original host identity
+  - VNFC target host identity
+  - high availability
+  - recovery
+  - data-in-motion changes
+
+* Other VNFC Operational State Changes
+
+  - Hibernation, sleep, resumption, abort, restore, suspension
+  - Power-on and power-off (either physical or virtual)
+  - Integrity verification failure, crash and OS compromise
+
+* VNFC Topology Changes
+
+  - Network IP address and VLAN updates
+  - Service chaining
+  - Failover and disaster recovery
+
+* traffic inspection
+
+  - enabling virtual port mirroring
+  - enabling hypervisor introspection
+  - enabling in-line traffic inspection
+  - application insertion
+
+* initial provisioning of a public/private key pair
+
+  - Self-generation of key pairs for later validation by an external party:
+
+     - Certificate Authority
+     - VNFM
+
+  - Provision by trusted party
+
+     - network
+     - storage
+
+  - Injection by hypervisor
+