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3 result(s) for EncryptionKeyLength
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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings6.7.6 Deriving keysName Secret Seed Offset Length ClientSigningKey ServerSecret ClientSeed 0 DerivedSignatureKeyLength ClientEncryptingKey ServerSecret ClientSeed DerivedSignatureKeyLength EncryptionKeyLength ClientInitializationVector ServerSecret ClientSeed DerivedSignatureKeyLength + EncryptionKeyLength InitializationVectorLength ServerSigningKey ClientSecret ServerSeed 0 DerivedSignatureKeyLength ServerEncryptingKey ClientSecret ServerSeed DerivedSignatureKeyLength ... EncryptionKeyLength ServerInitializationVector ClientSecret ServerSeed DerivedSignatureKeyLength + EncryptionKeyLength InitializationVectorLength The SymmetricEncryptionAlgorithm for the SecurityPolicy sets the DerivedSignatureKeyLength , the EncryptionKeyLength and InitializationVectorLength . All constants referenced in the table are converted to bytes
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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings6.8.1 Secure Channel Handshakeshown in Table 67 . The SymmetricEncryptionAlgorithm for the SecurityPolicy sets the DerivedSignatureKeyLength , the EncryptionKeyLength and InitializationVectorLength . All constants referenced in the table are converted to bytes for the calculation ... Deriving Client Keys from Keying Material Name Offset Length ClientSigningKey 0 DerivedSignatureKeyLength ClientEncryptingKey DerivedSignatureKeyLength EncryptionKeyLength ClientInitializationVector DerivedSignatureKeyLength + EncryptionKeyLength InitializationVectorLength The server keys are extracted from the keying material created with
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OPC-10000-6 – OPC Unified Architecture - Part 6: MappingsTable 71 . Table 71 - Deriving Keys from Keying Material Name Offset Length EncryptingKey 0 EncryptionKeyLength InitializationVector EncryptionKeyLength InitializationVectorLength The EncryptionKeyLength and EncryptionBlockSize are specified by the Symmetric Encryption Algorithm