5 ms·
I often wonder how DRM systems obfuscate the keys. They must be in memory, right?
by keepquestioning 4y ago
I often wonder how DRM systems obfuscate the keys. They must be in memory, right?
- droopyEyelids 4y agoThat's the point of all these TPM chips/subprocessors Apple and Microsoft are sticking into their computers. The key can stay on the TPM chip which does the decrpytion
- keepquestioning 4y agoIf the key was extracted from the Secure Enclave, that's huge.
- akmarinov 4y agoProbably not, there are a bunch of products out there that support Airplay 2 like LG and Samsung TVs that don’t have a Secure Enclave
- filleokus 4y agoI don't know they did it. But one approach I (badly) tried was to use the firmware image for the old AirPort Express that got AirPlay 2 support. Someone had already extracted the key which was used to encrypt the firmware, so you could download the firmware from Apple and look at the unencrypted firmware blob. Perhaps even boot it using something like QEMU? But I never got anywhere with that...