Portable memory and a method for encrypting the same
US8325921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jun 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a portable memory, comprising: a key storage unit for storing a register key for the portable memory; a key receiving unit for receiving a first key entered by a user and generating a second key based on the first key; an identification unit for comparing the second key with the register key to obtain a comparison result; a key generation unit for generating an encryption/decryption key if the comparison result indicates that the second key matches the register key; a chip for encrypting/decrypting a data stream exchanged between a computer and the portable memory by using the encryption/decryption key. The portable memory constitutes a system itself, and thus can perform encryption/decryption operations independent of external systems, resulting in a reduced cost. The present invention also provides a method of encrypting a portable memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.