Details of 'DTS/CYBER-0098' Work Item

	Work Item Reference	ETSI Doc. Number	STF	Technical Body in Charge		Standard Not Ready For Download
	DTS/CYBER-0098	TS 103 964		CYBER
	Current Status (Click to View Full Schedule)	Latest Version	Cover Date	Standstill		Creation Date
	Stable draft (2024-06-02)	0.0.7 Draft		View Standstill Information		2022-09-13
	Rapporteur	Technical Officer		Harmonised Standard
	Giovanni Bartolomeo	Kim Nordström		No
Title	Cyber Security (CYBER); A Verifiable Credentials extension using Attribute-Based Encryption A Verifiable Credentials extension using Attribute-Based Encryption
Scope and Field of Application	W3C “Verifiable Credentials” (VCs) is an open standard for digital credentials. A verifiable credential is a tamper-evident credential with authorship that can be cryptographically verified. The W3C standard intentionally does not specify a single verification (“proof”) method, but expects several methods to mature independently and become standardized in time. To guarantee interoperability, W3C maintains a registry of proof mechanisms (including several “experimental” ones) known as Verifiable Credentials Extension Registry. This work item will define a new proof method via a challenge-response authentication protocol based on Ciphertext Policy Attribute-Based Encryption (CP-ABE). In this proof method, CP-ABE keys encode attributes, while the expressiveness of CP-ABE policies enables their selective disclosure and/or proof of predicates over them. Relationship with existing “Zero Knowledge Proof” methods will be highlighted.
Supporting Organizations	NTT corporation, CNIT, AIT, KAT, Eurosmart AISBL

	Keywords	Projects	Clusters	Frequencies	Mandates	Directives
	access control encryption		Security
Official Journal
Remarks	2024-06-02 bartolomeog Draft contributed - V 0.0.7 contributed for Discussion in CYBER(24)038021 as Stable draft 2024-06-02 bartolomeog A new draft is uploaded - V 0.0.7 with status: Stable draft 2024-05-24 bartolomeog Draft contributed - V 0.0.6 contributed for Discussion in CYBER(24)37e015r1 as Early draft 2024-05-24 bartolomeog Early draft proposal in contribution CYBER(24)37e015 was Revised by CYBER 2024-05-24 bartolomeog A new draft is uploaded - V 0.0.6 with status: Early draft 2024-05-22 bartolomeog Draft contributed - V 0.0.5 contributed for Discussion in CYBER(24)37e015 as Early draft 2024-05-22 bartolomeog A new draft is uploaded - V 0.0.5 with status: Early draft 2024-05-20 bartolomeog A new draft is uploaded - V 0.0.4 with status: Early draft 2024-02-18 bartolomeog Draft contributed - V 0.0.3 contributed for Discussion in CYBER(24)037021 as Early draft 2024-02-18 bartolomeog A new draft is uploaded - V 0.0.3 with status: Early draft 2023-05-17 bartolomeog Draft contributed - V 0.0.2 contributed for Discussion in CYBER(23)034027 as Early draft 2023-05-17 bartolomeog A new draft is uploaded - V 0.0.2 with status: Early draft 2023-01-29 bartolomeog Draft contributed - V 0.0.1 contributed for Discussion in CYBER(23)000011 as Early draft 2023-01-29 bartolomeog A new draft is uploaded - V 0.0.1 with status: Early draft 2022-10-11 COMPANS TB adoption of WI CYBER, see contribution CYBER(22)031008r1 2022-10-11 COMPANS WI proposed to TB CYBER, see contribution CYBER(22)031008r1 2022-09-13 BARTOLOM WI proposed to TB CYBER, see contribution CYBER(22)031008

Specific aspects
	Security/Privacy aspects