2-4 C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUALSECURITY CHAPTER 2: PRODUCT DESCRIPTION2Figure 2-2: Access control by passwords and connection type2.2.0.3 CyberSentry securityCyberSentry security is available using software options that provide advanced security services. When an option ispurchased, the basic password security is disabled automatically.CyberSentry provides security through the following features:• An Authentication, Authorization, Accounting (AAA) Remote Authentication Dial-In User Service (RADIUS) client that iscentrally managed, enables user attribution, provides accounting of all user activities, and uses secure standards-based strong cryptography for authentication and credential protection• A Role-Based Access Control (RBAC) system that provides a permission model that allows access to UR deviceoperations and configurations based on specific roles and individual user accounts configured on the AAA server (thatis, Administrator, Supervisor, Engineer, Operator, Observer roles)• Security event reporting through the Syslog protocol for supporting Security Information Event Management (SIEM)systems for centralized cybersecurity monitoring• Strong encryption of all access and configuration network messages between the EnerVista software and UR devicesusing the Secure Shell (SSH) protocol, the Advanced Encryption Standard (AES), and 128-bit keys in Galois CounterMode (GCM) as specified in the U.S. National Security Agency Suite B extension for SSH and approved by the NationalInstitute of Standards and Technology (NIST) FIPS-140-2 standards for cryptographic systemsCyberSentry user rolesCyberSentry user roles (Administrator, Engineer, Operator, Supervisor, Observer) limit the levels of access to various URfunctions. This means that the EnerVista software allows for access to functionality based on the user’s logged in role.Example: Administrative functions can be segmented from common operator functions, or engineering type access, all ofwhich are defined by separate roles so that access of UR devices by multiple personnel within a substation is allowed.One role of one type is allowed to be logged in at a time. For example, one Operator can be logged in but not a secondOperator at the same time. This prevents subsets of settings from being changed at the same time.
