Reversing symmetric encryptions using keys found in snapshots—per-file keys, random and transmitted outside
US12430457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Dec 26, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0822
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One example method includes identifying a process that includes both a write operation and a transmit operation, wherein the write operation comprises performing a malicious process on data that renders the data unusable to an owner of the data, and the transmit operation comprises transmitting the data after the data has been acted upon by the malicious process, performing a snapshot operation to create a snapshot that comprises a copy of the data after the data has been acted upon by the malicious process and/or while the data is being acted upon by the malicious process, and intercepting the data before, or while, the transmit operation is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.