Establishing system on chip root of trust from multiple chiplet roots of trust

A method for secure processing, comprising:

• receiving, by a first root of trust (C-RoT) of a first chiplet of a plurality of chiplets from a second C-ROT of a second chiplet, a second certificate along with security state information and debug information for the second chiplet;
• authenticating a security state and a debug state of the second chiplet based on the security state information and the debug information;
• authenticating the second certificate;
• and
• establishing a security boundary with the second chiplet.

A non-transitory computer-readable medium having stored thereon instructions that, when executed by a first chiplet of a plurality of chiplets, cause the first chiplet to:

• receive, by a first root of trust (C-RoT) of the first chiplet from a second C-ROT of a second chiplet, a second certificate along with security state information and debug information for the second chiplet;
• authenticate a security state and a debug state of the second chiplet based on the security state information and the debug information;
• authenticate the second certificate;
• and
• establish a security boundary with the second chiplet.