Microcode-based challenge/response process
US9361107B2 · kind B2 · utility
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14References
19Claims
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Key dates
| Filing date | Jul 8, 2011 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Augmented processor hardware contains a microcode interpreter. When encrypted microcode is included in a challenge from a service requiring authentication, the microcode may be passed to the microcode interpreter. Based on decryption and execution of the microcode taking place at the processor hardware, tampering by potentially abusive device software may be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.