This Standard provides an interoperable method to transact within a node-to-node environment using the Advanced Encryption Standard (AES). It specifies management procedures applied in the authentication, encryption and decryption of electronic messages relating to financial transactions utilising session keys
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Terms and definitions
2 Overview
2.1 General
2.2 Objectives of the scheme
2.3 Different keys for each function
2.4 Wrapped key block mechanism
3 Node-to-node AES key blocks
3.1 Key hierarchy and management
3.1.1 General
3.1.2 Level 1: Key block protection key (KBPK)
3.1.3 Level 2: Key block authentication and encryption keys (KBAK and KBEK)
3.1.4 Level 3: Session keys (KS)
4 Key confirmation and session key changes
4.1 Initialisation
4.2 Key confirmation
4.3 Changing session keys
4.3.1 General
4.3.2 Session key change
4.3.3 Synchronisation of session key changes
4.3.4 Resynchronisation
5 Storage and transport of keys
5.1 General
5.2 Transport of session keys
5.3 Storage of session keys
Bibliography
Cited references in this standard
Content history
DR AS 2805.6.9:2021
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