Securely obtaining memory content after device malfunction
US9286152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2013 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jun 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0793
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One or more techniques and/or systems are provided for securely obtaining memory content after a device malfunction. For example, applications, components, and/or an operating system of a device may maintain information within volatile memory in a secure manner (e.g., using encryption). When the device malfunctions, such information may be useful for diagnosing what caused the malfunction. Accordingly, memory content within volatile memory may be securely retrieved, encrypted, and/or stored before such memory content is flushed/removed from volatile memory. For example, a warm reset is performed to initially reboot the device without removing memory content from volatile memory. The memory content may be retrieved and encrypted to create encrypted memory content that may be stored within nonvolatile memory for later access. After a second reboot, device malfunction information may be obtained by decrypting the encrypted memory content using a private key matching a public key used to encrypt the memory content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.