Semiconductor memory system and operating method thereof
US10339318B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jun 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/44
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor memory system and an operating method thereof includes: a one-time-programmable memory device storing at least a customer identification (ID) identifying a customer; a memory device; and a memory controller including a processor, and coupled to the memory device, containing instructions executed by the processor, and suitable for authenticating whether a program is authorized by a controller provider for the customer in a first-level signature authentication, in accordance with a customer image format, authenticating whether the program is authorized by the customer in a second-level signature authentication, in accordance with a program image format, after the first-level signature authentication is passed, when the customer image indicates the second-level signature authentication, wherein the program image format is different than the customer image format, storing the program into the memory device after the first-level signature authentication and second-level signature authentication are passed, and executing the program after the program is authenticated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.