# ISO/IEC TS 23078-2:2020 — Withdrawn and superseded ISO standards For ISO/IEC TS 23078-2:2020, item title is Information technology — Specification of DRM technology for digital publications — Part 2: User key-based protection; status code is 9599; successor is ISO/IEC 23078-2:2024; withdrawn / published date is 2020-09-14, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC TS 23078-2:2020 _(verified: appears in the quote below)_ - **Item title:** Information technology — Specification of DRM technology for digital publications — Part 2: User key-based protection _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 23078-2:2024 - **Withdrawn / published date:** 2020-09-14 _(verified: appears in the quote below)_ ## What the source says > 79485,TS,,ISO/IEC TS 23078-2:2020,Information technology — Specification of DRM technology for digital publications — Part 2: User key-based protection,Technologies de l'information — Spécification de la technologie de gestion des droits numériques (DRM) pour les publications numériques — Partie 2: Protection par clé utilisateur,2020-09-14,1,['35.240.30'],ISO/IEC JTC 1/SC 34,9599,,[84957],['en'],36,"

This document defines a technical solution for encrypting resources in digital publications (especially EPUB) and for securely delivering decryption keys to reading systems, included in licenses tailored to specific users. It also defines a simple passphrase-based authentication method for rea ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).