Details of 'DTR/CYBER-QSC-0027-4' Work Item

	Work Item Reference	ETSI Doc. Number	STF	Technical Body in Charge		Standard Not Ready For Download
	DTR/CYBER-QSC-0027-4	TR 104 239-4		CYBER QSC
	Current Status (Click to View Full Schedule)	Latest Version	Cover Date	Standstill		Creation Date
	Early draft (2026-09-02)	0.0.3 Draft		View Standstill Information		2025-01-21
	Rapporteur	Technical Officer		Harmonised Standard
	Peter Campbell	Kim Nordström		No
Title	Cyber Security (CYBER); Quantum-Safe Cryptography (QSC); Secure Implementation Guidance for Key Encapsulation Mechanisms and Digital Signature Schemes; Part 4: SLH-DSA SLH-DSA Implementation Guidance
Scope and Field of Application	This work item is the fourth part in a series of quantum-safe implementation guidance documents. It is intended to provide developers with guidance to aid the secure implementation of the quantum-safe digital signature algorithm SLH-DSA as specified by NIST FIPS 205. This will highlight some potential SLH-DSA implementation hazards; identify some side-channel and fault attack issues specific to SLH-DSA; consider some testing and formal verification aspects relevant to SLH-DSA; and briefly discuss the secure usage of SLH-DSA.
Supporting Organizations	IBM Europe, TNO, NCSC, Amazon Web Services, Cosmian

	Keywords	Projects	Clusters	Frequencies	Mandates	Directives
	Cyber Security digital signature Quantum Safe Cryptography		Security
Official Journal
Remarks	2026-09-02 campbellpe Draft contributed - V 0.0.3 contributed for Discussion in CYBERQSC(26)45011 as Early draft 2026-09-02 CAMPBELLPE A new draft is uploaded - V 0.0.3 with status: Early draft 2026-07-01 campbellpe Draft contributed - V 0.0.2 contributed for Discussion in CYBERQSC(26)44008 as Early draft 2026-07-01 CAMPBELLPE A new draft is uploaded - V 0.0.2 with status: Early draft 2026-02-16 nordstromkim Draft file Deleted - Version 0.0.3 in file CYBER-QSC-0027-4v003.docx has been permanently deleted 2026-02-15   A new draft is uploaded - V 0.0.3 with status: Early draft 2025-11-19 campbellpe Draft contributed - V 0.0.1 contributed for Discussion in CYBERQSC(25)41014 as Early draft 2025-11-19 CAMPBELLPE A new draft is uploaded - V 0.0.1 with status: Early draft 2025-03-18 Kim Nordström Work item adopted CYBER, see contribution CYBER(25)41a006 in RC CYBER(25)DEC181 2025-02-18 nordstro WI proposed to WG CYBER QSC, see contribution CYBER(25)41a006 2025-02-18 Kim Nordström WI accepted by WG CYBER QSC, see contribution CYBERQSC(25)037011r1 2025-02-04 CAMPBELL WI proposed to WG CYBER QSC, see contribution CYBERQSC(25)037011r1 2025-01-21 CAMPBELL WI proposed to WG CYBER QSC, see contribution CYBERQSC(25)037011

Specific aspects
	Security/Privacy aspects