One-time obfuscation for polynomial-size ordered binary decision diagrams (POBDDs)
US10509918B1 · kind B1 · utility
1Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Nov 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Described is a system for protecting sensitive information that is hardcoded in polynomial-size ordered binary decision diagram (POBDD) form. A software executable represented as a POBDD having sensitive information embedded therein is obfuscated into an obfuscated POBDD. An input query on the obfuscated POBDD is evaluated, and the sensitive information is revealed only if the input query is a correct input. Thus, an adversary is prevented from extracting the sensitive information embedded in the POBDD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.