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integrity

Maintaining the integrity of important files

How to do this using macOS and free tools. Introduces a new version of Dintch which lets you control its speed, particularly on Apple silicon.

June 15, 2022 Macs, Technology, Updates

Efficient resilient storage

Storage has to be reliable, efficient and resilient. However, efficiency and resilience oppose one another. What’s the best solution? New file formats, CRC in the file system, or what?

May 27, 2022 Macs, Technology

What’s in an app’s signature?

App signatures are about more than just the certificate. That provides a chain of trust going back to Apple, and supports integrity checks and entitlements.

March 8, 2022 Macs, Technology

How Monterey checks apps and executable code

There have been changes to the way that macOS 12 checks executable code when asked to run it. Summarised in a diagram.

March 4, 2022 Macs, Technology

How can you check the integrity of backed up files?

T T Read More

For many users, it’s essential to be able to check the integrity of the data which are in a backup. This feature has changed when backing up to APFS.

November 29, 2021 Macs, Technology

Explainer: checksums, CRCs, hashes and cryptography

What are checksums, CRCs and hashes? What is required for a hash to be cryptographic, and how any of these affect your Mac? Some answers and explanations.

July 10, 2021 Macs, Technology

How to check the integrity of your backups and iCloud files

How can you check the integrity of important files you have stored in iCloud, or in a Time Machine backup, such as those made by Big Sur to APFS?

March 9, 2021 Macs, Technology

Checks on executable code in Catalina and Big Sur: a first draft

How macOS checks executable code before it’s loaded and run, in macOS 10.15 and 11.0. Covering integrity checks using hashes, and validity of the signing certificate, on Intel and ARM.

November 16, 2020 Macs, Technology

cintch, a command tool to check file integrity, now a Universal binary

The command tool member of the Dintch suite for tagging files with their SHA256 digest, to keep a watch on their integrity.

September 2, 2020 Macs, Technology, Updates

Dintch 1.3 and Fintch 1.2 are now Universal Apps

T T Read More

They now run on macOS from El Capitan to Big Sur, on Intel and Apple Silicon Macs.

August 13, 2020 Macs, Technology, Updates

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