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ISO/IEC 27551

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ISO/IEC 27551 — Information technology — Security techniques — Requirements for attribute-based unlinkable entity authentication [DRAFT]


Attribute-based entity authentication (ABUEA) is a mechanism for authenticating unfamiliar parties through the services of a mutually-trusted third party.

‘Unlinkable’ refers to the need to be able to handle and process personal information anonymously, in a way that precludes being able to identify the original data subjects from the information being communicated and processed.


Scope of the standard



Content of the standard




Currently at DIS stage.  Due to be published at the end of 2020.


Personal notes

The standard is 


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