Methods, computer platforms, and apparatus for inhibiting security attacks

By combining active and passive conductive grids in the IC of the computer platform to generate cryptographic keys, the problem of not being able to detect and respond to physical tampering during power failure in the prior art is solved, ensuring the security of cryptographic security parameters and enhancing the security of the computer platform.

CN118632244BActive Publication Date: 2026-07-03HEWLETT PACKARD ENTERPRISE DEV LP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEWLETT PACKARD ENTERPRISE DEV LP
Filing Date
2023-08-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively detect and respond to physical tampering when a computer platform is powered off, and cannot ensure the security of password security parameters, especially the plaintext key of the password security module cannot be reset to zero in a timely manner.

Method used

A combination of active and passive conductive grids is used to generate cryptographic keys. The active grid is excited when the IC is powered on and the output signal is monitored to generate a primary cryptographic key. The passive grid is used to capture radiation to generate a fingerprint, ensuring that different cryptographic keys are generated when physically tampered with, thus avoiding the storage of keys in non-volatile memory.

Benefits of technology

It enables effective detection of physical tampering when the computer platform is powered off or on, ensures the security of password security parameters, prevents key recovery and tampering, and enhances the security of the computer platform.

✦ Generated by Eureka AI based on patent content.

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Abstract

This disclosure relates to generating cryptographic security parameters in response to radiation captured by a conductive grid. A process includes: providing a first signal to a first conductive grid of a semiconductor package to provide wireless transmission; and receiving the wireless transmission by a second conductive grid of the semiconductor package to provide a second signal. The process includes: determining a signature of the second signal; and generating cryptographic security parameters based on the signature by a cryptographic security parameter generator of the semiconductor package.
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