Method and apparatus for secure validation of tokens
US8307210B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Feb 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/127
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for validating a cryptographic token includes (a) operating the cryptographic token to generate a pseudo-random number for authentication purposes by using a cryptographic seed uniquely associated with the cryptographic token, the cryptographic seed having been cryptographically generated using a precursor value, (b) receiving a first value from the cryptographic token, the first value being the pseudo-random number generated by the cryptographic token, (c) inputting the first value and the precursor value into a trusted computing platform, and (d) operating the trusted computing platform to generate a validation signal if the first value can be derived using a specified algorithm from the precursor value, but to generate a failure signal if the first value cannot be derived using the specified algorithm from the precursor value. Accompanying methods and apparatus are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.