U.S. has asserted that subpoenas for data controlled by a U.S. company are valid, even if the data is stored exclusively out of the country. https://en.wikiped

U.S. has asserted that subpoenas for data controlled by a U.S. company are valid, even if the data is stored exclusively out of the country. https://en.wikipedia.org/wiki/Microsoft_Corporation_v._United_States_of_America https://en.wikipedia.org/wiki/Microsoft_Corporation_v._Unite... So I seriously doubt the Chinese government thinks the U.S. won't have the ability to get those keys. But these are device encryption keys used to encrypt data at rest on the device. This isn't a demand to escrow the private keys used for data in transit for email and messaging; I don't know how that works in China, i.e. the Great Firewall, if that just depends on blacklist/whitelist sites, or if all devices are required to use a Chinese government certificate for such communications.