System and method using information-based indicia for securing and authenticating transactions
US7117363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2002 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method, system, and apparatus for authenticating transactions and records is disclosed. A nonce stamp is a physical article that is relatively difficult to copy illicitly, and that bears a “nonce” number. The “nonce” is a relatively unique identifier, in that it is chosen from a distribution such that any given user/customer is extremely unlikely to obtain two nonce stamps bearing the same nonce. The method includes: presenting a nonce stamp having a nonce number; presenting a numbered digital certificate derived securely from the nonce number; and authenticating the transaction by comparing the number on the digital certificate and the nonce number. The digital certificate is typically obtained by users/customers in exchange for the purchase price of a desired transaction. The apparatus is an information-based indicium including a nonce stamp, and a digital certificate including a number derived securely from the nonce. The system generates information-based transaction indicia, and typically includes one or more computers configured to receive as input a nonce number from a user; encrypt the nonce number; and provide to the user a digital certificate including the encrypted non…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.