Microprocessor
US7707645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Jan 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/57
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor includes a decryption unit that decrypts information to be utilized by a processor core to obtain plaintext information when the acquired information is encrypted; and a plaintext information storing unit that stores the plaintext information. The microprocessor also includes a protected attribute adding unit that adds a protected attribute indicating one of protection and non-protection to the plaintext information based on whether the decryption has been performed; an access request acquiring unit that acquires an access request to the plaintext information; a request type identifying unit that identifies a type of request of the access request; and an access controlling unit that controls an access to the plaintext information based on the type of request and the protected attribute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.