A Copy-Paste Bug That Broke PSpice® AES-256 Encryption
PSpice is a SPICE circuit simulator from Cadence Design Systems that encrypts proprietary semiconductor model files to protect vendor IP...
Joe T. Sylve, Ph.D. – Blog
Posts (Page 2 of 4)
2022 APFS Advent Challenge - Retrospective
As 2022 ends, so does my APFS Advent Challenge. Deciding at the last minute to write this series of blogs...
Fusion Containers
As we discussed in an earlier post, Apple’s Fusion Drives combine the storage capacity of a hard disk drive (HDD)...
Snapshot Metadata
Earlier in this series, we covered how Object Maps facilitate the implementation of point-in-time Snapshots of APFS file systems by...
Decryption
Now that we know how to parse the File System Tree, analyze keybags, and unwrap decryption keys, it’s time to...
Update: Blazingly Fast-er SIMD Checksums
This is a quick update to yesterday’s post on using std::experimental::simd to speed up APFS Fletcher-64 calculations. It turns out...
Blazingly Fast Checksums with SIMD
Today’s post will take on a bit of a different style than the previous posts in this series. Among other...
Wrapped Keys
In our last post, we discussed both Volume and Container Keybags and how they protect wrapped Volume Encryption and Key...
Keybags
APFS is designed with encryption in mind and removes the need for the Core Storage layer used to provide encryption...
Sealed Volumes
With the release of macOS 11, Apple added a security feature to APFS called sealed volumes. Sealed volumes can be...