Method and apparatus for data transmission in a tee system
US10699015B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2020 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Feb 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method, non-transitory, computer-readable medium, and computer-implemented system are provided for data transmission in a trusted execution environment (TEE) system. The method can be executed by a thread on a TEE side of the TEE system. The method includes obtaining first data; calling a predetermined function using the first data as an input parameter to switch to a non-TEE side; obtaining a write offset address by reading a first address; obtaining a read offset address by reading a second address; determining whether a quantity of bytes of the first data is less than or equal to a quantity of writable bytes; if so, writing the first data into third addresses starting from the write offset address; updating the write offset address in the first address; and returning to the TEE side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.