Version 1: Release Note 28 November 2014


Calculating unique Shared Secret Keys for a Remote Party Message Instance



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Calculating unique Shared Secret Keys for a Remote Party Message Instance


Where a Smart Metering Entity executes the KDF in relation to a Message instance, the OtherInfo field, with the meaning in NIST Special Publication 800-56Ar2, shall be populated using the value of information provided in, or to be placed in, the originator-system-title, recipient-system-title and transaction-id fields of the Grouping Header, as per the requirements of Section 7.2.7.

The OtherInfo shall be in the Concatenation Format as defined in Section 5.8.1.2.1 of NIST Special Publication 800-56Ar2 and shall be the concatenation:



AlgorithmID || value of originator-system-title || length of transaction-id || value of transaction-id || value of recipient-system-title

where:


  • AlgorithmID is that for AES-GCM-128 and so has a value 0x60857406080300, as specified by section 9.2.3.4.6.5 of the Green Book; and

  • length of transaction-id has the value 0x09.

        1. Directory: government -> uploads -> system -> uploads -> attachment data -> file
          file -> Remove this if sending to pagerunnerr Page Title Light Rail Security Recommended Best Practice
          file -> 8 Section 1 : Sport
          file -> Notice of exercise of additional powers of seizure under Sections 50 or 51 of the Criminal Justice and Police Act 2001
          file -> Home office circular 004/2014 Powers to search for and seize invalid travel documents in Schedule 8 to the Anti-social Behaviour, Crime and Policing Act 2014
          file -> Consultation on the Royal Parks and Other Open Spaces (Amendment) (No. 2) Regulations 2012
          file -> Crown copyright 2012
          file -> This is the Report to Government by the Film Policy Review Panel The brief
          file -> Impact Assessment (IA)
          file -> Dcms/Wolfson Museums and Galleries Improvement Fund a public-Private Partnership (2002-2010)


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