Encryption for modulated backscatter systems
US6130623A · kind A · utility
410Cited by
80References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1996 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tag and an interrogator exchange proprietary information using Modulated BackScatter (MBS) technology. A method for encrypting the RFID user's PIN and thereby making the interception and the subsequent illegal use of RFID accounts at least as difficult as a present day ATM cards. For example, the encryption method can be based upon the US Digital Encryption Standard (DES), either first or third level. The Tag's personal encryption key is only known by the financial database and the RFID Tag. This method can be applied to any type of financial, debt, identification, or credit card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.