---
title: "Appendix: Apple Silicon Secure Boot Ticket Canonicalization"
framework: Private Cloud Compute Security Guide
role: article
role_heading: Article
path: private-cloud-compute/appendix_uniqtags
---

# Appendix: Apple Silicon Secure Boot Ticket Canonicalization

The construction of a release from an Image4 ticket.

## Overview

Overview When CloudAttestation is producing canonical Image4 tickets, the 4CC uniq in personalized tickets determines which fields are redacted to produce canonical tickets. At the time of publication, these fields are:  |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |   |  |  |  |