I'm very nearly certain because I benchmarked decrypting the iOS 10 beta kernel using the code at [0]. The kernelcache is about 13 MB compressed and takes about

I'm very nearly certain because I benchmarked decrypting the iOS 10 beta kernel using the code at [0]. The kernelcache is about 13 MB compressed and takes about 60 milliseconds to decrypt. Previous iOS versions encrypted the compressed kernelcache so benchmarking decryption of the compressed kernelcache should be correct. Unless Apple was doing something very stupid, kernelcache decryption should never have been much of a bottleneck in the first place. It is nice to see that they have found other ways to improve the boot time. [0]: https://gist.github.com/jevinskie/40df60e3e9d76ad05304be9bd550d6ad https://gist.github.com/jevinskie/40df60e3e9d76ad05304be9bd5...