IOCryptoAcceleratorFamily

[scknight]

I'm looking through all the kext dependencies on macOS 10.14.2 and I noticed that the AppleKeyStore.kext has a dependency of com.apple.iokit.IOCryptoAcceleratorFamily. I can't seem to find a kext that provides that or even an entry for that from kextstat.

Does anyone know what it is or what provides it?

[morpheus]

That's because you should be looking at <key>OSBundleLibraries_x86_64</key>, not <key>OSBundleLibraries</key>, not <key>OSBundleLibraries</key>. CryptoAccelFamily is on *OS systems (not MacOS), to access the embedded encryption processor.

Code: Select all

jtool2 -k ~/Downloads/kernelcache.release.iphone10 | grep Crypto
0xfffffff005b17180:com.apple.iokit.IOCryptoAcceleratorFamily

(And thank you! I just made a note about the _x86_64 variant in the kext chapter of Volume II! )

[TheDarkKnight]

Hi J,

As you know me, you won't be surprised that I'm just going to point out a typo in that section!
Where you've written "If an architecture variant key exist alongside...." - should be "... exists alongside... " !

All the best and looking forward to the final book ;O)

[scknight]

Thanks J!

I was trying to pull out a list of all kexts and their dependencies. The end result is this fancy image

https://knight.sc/images/sharing-code-in-kexts-1.png