Comment by bflesch

I think Linux/LUKS software encryption was a very big challenge and they solved it with multiple approaches

- 2004: Linux LUKS disk encryption [0]

- 2008: ring −3 / intel management engine [1]

- 2010: AES instruction set [2]

- 2009: TPM [3]

[0] https://en.wikipedia.org/wiki/Linux_Unified_Key_Setup

[1] https://en.wikipedia.org/wiki/Intel_Management_Engine

[2] https://en.wikipedia.org/wiki/AES_instruction_set

[3] https://en.wikipedia.org/wiki/Trusted_Platform_Module