Methods and systems for verifying a location factor associated with a token
US8074265B2 · kind B2 · utility
4Cited by
81References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3271
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A server, method and/or computer-readable medium verifies a location factor associated with a token. The server generates a challenge and encrypts the challenge by a key commonly shared by the server and the token, and transmits the encrypted challenge to the token. The token decrypts the encrypted challenge by the commonly shared key and manipulates the challenge by an elliptic curve cryptography (ECC) procedure so that the server can verify that the signed manipulated challenge was generated at the token based upon the ECC public key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.