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4 result(s) for AuthenticatedEncryption
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OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model3.1.11 AuthenticatedEncryptionAuthenticatedEncryption encryption scheme which simultaneously assures the data confidentiality and authenticity Note 1 to entry: AuthenticatedEncryption algorithms could allow for associated data to be signed but not encrypted
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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings6.7.2.1 Overviewstructure of a MessageChunk and how security is applied to the Message when using Authenticated Encryption algorithms. For these SecurityPolicies the Signature is calculated during encryption and appended after ... encrypted data. Figure 12 - MessageChunk for Authenticated Encryption Algorithms The OpenSecureChannel negotiations use asymmetric algorithms. The MessageChunk structure is shown in Figure 13 . When using ECC or RSA-DH based
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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings6.8.1 Secure Channel HandshakeSymmetricEncryptionAlgorithm for the SecurityPolicy sets the DerivedSignatureKeyLength, the EncryptionKeyLength and InitializationVectorLength .. When using AuthenticatedEncryption, the DerivedSignatureKeyLength is set to zero in the calculation of L in Step 1. The process ... signing and encrypting data with AuthenticatedEncryption is discussed in 6.7.1 . When not using AuthenticatedEncryption with Sign only, the EncryptionKeyLength and InitializationVectorLength are set to 0 in the calculation
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OPC-10000-6 – OPC Unified Architecture - Part 6: MappingsInitializationVectorLength when using block based symmetric encryption algorithms such as AES-CBC. When using AuthenticatedEncryption , the PayloadPadding calculated to ensure the encrypted data is a multiple of 16 bytes ... additional data part shall include all headers in the EncryptedSecret . The AuthenticatedEncryption tag is appended after the PayloadPaddingSize and is verified when the Payload is decrypted. The PayloadPaddingSize calculated with