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8 result(s) for Public Keys

• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.13 OPC UA security related Services
  Server by the previously mentioned discovery services. These Certificates contain the Public Keys of the OPC UA Server . For Rivest-Shamir-Adleman (RSA) the following procedure is used ... temporary key pair and sends the Public Key to the Client. Once the Public Keys are exchanged, both the Server and Client derive the SymmetricKeys needed for the secure conversation
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  9.1 Overview
  Public Key . An OPC UA Application will have a list of trusted Public Keys that represent the applications it trusts. The Private Key and the list of trusted Public Keys
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  9.2 Self signed certificate management
  they desire communication with. In addition, the administrator would be required to copy the Public Key associated with all Server applications to all Client applications that communicate with them ... Certificate at some point in time. This will require that new Private Keys and Public Keys be generated and all of the Public Keys to be copied again. In very
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  9.3 CA Signed Certificate management
  Signed Certificate management In systems with multiple Servers and Clients the installation of Public Keys in TrustLists can very quickly become cumbersome. In these instances, the use of a company ... that are installed in a system, but the administrator will only install the CA Public Key on all machines. When a Certificate is replaced, the administrator will only replace
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  9.4.2 Certificate management for developers
  configuration of a TrustList should also be easily accomplished. Typically, TrustLists for Public Keys of ApplicationInstances are kept in a separate list than those of a CA. Also ... able to handle Certificate Revocation Lists (CRL). These are lists of Public Keys that are associated with a given CA that have been revoked. This allows a CA to remove
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.7.2.3 Security Header
  extra bytes. ReceiverCertificateThumbprintLength Int32 The length of the ReceiverCertificateThumbprint in bytes. When using RSA Public Keys : If encrypted, the value of this field is 20 bytes. If not encrypted ... value may be 0 or -1. When using ECC or RSA-DH Public Keys : The value of this field is 20 bytes. Other negative values are invalid. ReceiverCertificateThumbprint Byte
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.8.1 Secure Channel Handshake
  designed for use with asymmetric cryptography algorithms, such as RSA, that allow Public Keys to be used for encryption and for digital signatures. ECC is an asymmetric cryptography algorithm that ... named curves. OPC UA applications that support ECC SecurityPolicies shall support multiple Certificates. ECC Public Keys and digital signatures are the output of an ECC operation. The encoding of these
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.9 Diffie-Hellman Key Agreement (RSA)
  signed but not encrypted when using RSA-DH. When creating an EncryptedSecret , the DH PublicKeys are exchanged using the mechanisms defined for ECC in 6.8.2 . This includes using the misnamed ... ffdhe3072 384 275 The RSA PublicKey Length is the minimum key length for Certificate PublicKeys allowed by the SecurityPolicy . The choice of group determines the DH parameters