---
id: 8584
title: "DER Entitlements: The (Brief) Return of the Psychic Paper"
source_domain: projectzero.google
source_url: "https://projectzero.google/2023/01/der-entitlements-brief-return-of.html"
published_at: "2023-01-12T00:00:00Z"
tags: ["ios", "apple", "code-signing", "entitlements", "der", "psychic-paper"]
phying_url: "https://phying.com/item/8584"
lang: en
---

# DER Entitlements: The (Brief) Return of the Psychic Paper

## Summary

Research on DER-encoded entitlement handling that briefly revived the Psychic Paper technique for forging iOS entitlements, covering the root cause and subsequent fixes.

## Intelligence Metadata

- **Sources:** projectzero.google
- **Published:** 2023-01-12T00:00:00Z
- **Original:** https://projectzero.google/2023/01/der-entitlements-brief-return-of.html
- **Phying News:** https://phying.com/item/8584