公开(公告)号：US11558198B2

公开(公告)日：2023-01-17

申请号：US16841997

申请日：2020-04-07

Applicant: Cisco Technology, Inc.

Inventor： Eric Voit ,  Srinivas Vundru ,  Peter Panburana ,  David Wayne Mills ,  Pradeep Kumar Kathail

IPC: H04L29/06 ,  H04L9/32 ,  H04L9/30 ,  H04L9/08

Abstract: The present technology discloses methods and systems for receiving a security profile request from an integrity verifier, the request including a nonce; requesting, from a trusted platform module, a new nonce, wherein the new nonce is generated at least in part by the nonce and a current timestamp from a clock in the trusted platform module; receiving, from the trusted platform module, the new nonce; requesting, from a cryptoprocessor, a set of platform configuration registers; receiving, from the cryptoprocessor, the set of platform configuration registers; and sending a response to the integrity verifier, the response including the new nonce and the set of platform configuration registers to verify a security status of the trusted platform module and the cryptoprocessor.

公开(公告)号：US20210314161A1

公开(公告)日：2021-10-07

申请号：US16841997

申请日：2020-04-07

Applicant: Cisco Technology, Inc.

Inventor： Eric Voit ,  Srinivas Vundru ,  Peter Panburana ,  David Wayne Mills ,  Pradeep Kumar Kathail

IPC: H04L9/32 ,  H04L9/08 ,  H04L9/30

Abstract: The present technology discloses methods and systems for receiving a security profile request from an integrity verifier, the request including a nonce; requesting, from a trusted platform module, a new nonce, wherein the new nonce is generated at least in part by the nonce and a current timestamp from a clock in the trusted platform module; receiving, from the trusted platform module, the new nonce; requesting, from a cryptoprocessor, a set of platform configuration registers; receiving, from the cryptoprocessor, the set of platform configuration registers; and sending a response to the integrity verifier, the response including the new nonce and the set of platform configuration registers to verify a security status of the trusted platform module and the cryptoprocessor.