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15 result(s) for Confidentiality

• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  3.1.19 Confidentiality
  Confidentiality security objective that assures the protection of data from being read by unintended parties
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  3.1.6 Asymmetric Cryptography
  Cryptography". Is an Asymmetric Encryption algorithm when an entity "A" requires Confidentiality for data sent to entity "B", then entity "A" encrypts
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  3.1.21 Cyber Security Management System
  maintain the security of the entire organization's assets to an established level of Confidentiality , Integrity , and Availability , whether they are on the business side or the industrial automation
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  3.1.37 Public Key Infrastructure
  when required, and to archive data needed to validate Certificates . Key pairs for data Confidentiality could be generated by a Certificate authority (CA); but it is better to have
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.3.3 Eavesdropping
  Client or Server to recover from a compromised operating system. Eavesdropping impacts Confidentiality directly and if session establishment is not secured Authentication and Authorization . It also indirectly threatens all other
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.3.13 Compromising user credentials
  used, subsequent activities could all appear legitimate. Compromised user credentials impact Authentication , Authorization and Confidentiality . See 5.1.12 for the reconciliation of this threat
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.5.2.3 Session communication layer
  Session communication layer The Communication Layer provides security mechanisms to meet Confidentiality , Integrity and application Authentication as security objectives. In some cases, it also meets the Perfect Forward Secrecy security ... communication between a Client and a Server . The SecureChannel provides encryption to maintain Confidentiality , Message Signature s to maintain Integrity and Certificates to provide application Authentication. In addition, the SecureChannel
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.5.2.4 Transport layer
  transport layer connection without interrupting. The transport layer can also be used to implement Confidentiality and Integrity by using HTTPS (HTTP messages over a TLS connection) as described
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.5.2.5 Session-less Service invocation
  session-less communication provides User Authentication via an Access Token. The communication channel provides Confidentiality and Integrity. The communication channel could be an OPC UA SecureChannel (without a session
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.5.3.2 Broker-less
  Broker-less The broker-less PubSub communication model provides Confidentiality and Integrity. This is accomplished using Symmetric Encryption and signature algorithms. The required SymmetricKeys are distributed by a Security
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.5.3.3 Broker
  same shared SymmetricKey concepts as defined in 4.5.3.2 can be used to provide Confidentiality and Integrity. Furthermore, communication to the Broker can be secured according the rules defined ... interact with the Broker . The Broker interactions can provide security mechanisms to meet Confidentiality , Integrity and application or user Authentication as security objectives. If the published message is not secured
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  5.2.5 Confidentiality
  Confidentiality OPC UA uses Symmetric and Asymmetric Encryption to protect Confidentiality as a security objective . Thereby Asymmetric Encryption is used for key agreement and Symmetric Encryption for securing all other ... relies upon the site CSMS to protect Confidentiality on the network and system infrastructure. OPC UA relies upon the PKI ( Public Key Infrastructure ) to manage keys used for Asymmetric Encryption
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  4.1 Service Set model
  defines Services that allow a Client to establish a communication channel to ensure the Confidentiality and Integrity of Messages exchanged with the Server . Figure 2 - SecureChannel Service Set The Session
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  5.6.1 Overview
  This Service Set defines Services used to open a communication channel that ensures the Confidentiality and Integrity of all Messages exchanged with the Server . The base concepts ... which are used to sign and encrypt Messages sent across the network to ensure Confidentiality and Integrity . The SecureChannel Services allow the Client and Server to securely negotiate the keys
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  5.6.2.1 Description
  used to open or renew a SecureChannel that can be used to ensure Confidentiality and Integrity for Message exchange during a Session . This Service requires the Communication Stack to apply