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ANSI X9.69-2023
Framework for Key Management Extensions
This Standard defines two specific key management methods for controlling and handling keys, called (1) Constructive Key Management and (2) Key Usage Control. Each method can be used independently; or the methods can be used in combination. However, the combined use of the methods is highly recommended by the ASC X9 Subcommittee responsible for this Standard. Each method is described in a separate section of the Standard.
Accredited Standards Committee, Inc. - Financial Industry Standards [ascx9]