CALEA, the Stored Communications Act and Section 215 of the Patriot Act all compel corporations (via the Department of Commerce) to build data and key escrow services into their products.
For example on modern Windows systems bitlocker keys are automatically uploaded to the (automatically created for you) Onedrive account associated with the Microsoft Account created during your install and Onedrive is on PRISM.
Searching for 380/286 classification patents in the US is one way to figure out some escrow mechanisms and companies, though it is not exhaustive nor does it only include federally-inspired escrow.
All of this is remnants of the Clinton Administration and alternatives to the failed Clipper Chip, then increased in scope by the Bush and then Obama administration. There's a decently history that only captures the broad strokes up until the late '90s here:
For example on modern Windows systems bitlocker keys are automatically uploaded to the (automatically created for you) Onedrive account associated with the Microsoft Account created during your install and Onedrive is on PRISM.
Searching for 380/286 classification patents in the US is one way to figure out some escrow mechanisms and companies, though it is not exhaustive nor does it only include federally-inspired escrow.
All of this is remnants of the Clinton Administration and alternatives to the failed Clipper Chip, then increased in scope by the Bush and then Obama administration. There's a decently history that only captures the broad strokes up until the late '90s here:
http://www.foia.cia.gov/sites/default/files/DOC_0006231614.p...