Invention Grant
- Patent Title: Device with multiple roots of trust
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Application No.: US15780005Application Date: 2016-12-01
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Publication No.: US11216389B2Publication Date: 2022-01-04
- Inventor: Ambuj Kumar , William Craig Rawlings
- Applicant: CRYPTOGRAPHY RESEARCH, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: CRYPTOGRAPHY RESEARCH, INC.
- Current Assignee: CRYPTOGRAPHY RESEARCH, INC.
- Current Assignee Address: US CA Sunnyvale
- Agency: Lowenstein Sandler LLP
- International Application: PCT/US2016/064451 WO 20161201
- International Announcement: WO2017/096060 WO 20170608
- Main IPC: G06F21/14
- IPC: G06F21/14 ; G06F12/14 ; G06F21/57 ; G06F21/62 ; H04L29/06 ; H04L9/08 ; H04L9/32

Abstract:
A container from a first root of trust associated with a first root entity may be received. The container may correspond to a mapping of a resource of an integrated circuit that is associated with the first root entity. The container may be verified based on a key that corresponds to the first root of trust and that is stored in the integrated circuit at manufacturing of the integrated circuit. An identification may be made that an assignment of the resource from the container corresponds to assigning the resource from the first root of trust to a new root of trust. A new key corresponding to the new root of trust may be generated. Information corresponding to the new key may be stored into a memory of the integrated circuit. Furthermore, the new key may be used to delegate the resource to a subsequent container.
Public/Granted literature
- US20180357183A1 DEVICE WITH MULTIPLE ROOTS OF TRUST Public/Granted day:2018-12-13
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