Secure online transactions using a captcha image as a watermark
US7200576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Jul 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/401
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
Techniques for conducting secure online transactions using captcha images as watermarks are provided. Some techniques combine a trusted, secure device that utilizes a key to generate identifiers with a watermarked transaction verification request page to provide secure online transactions. The trusted, secure devices are provided to users for use in transacting with a transaction provider. In processing a transaction requested by a user, the transaction provider determines an identifier that should be being currently generated by the user's trusted, secure device, creates a captcha image of the identifier, and watermarks a transaction verification request page using the captcha image. The transaction provider then requests that the user verify the transaction described in the transaction verification request page by providing the next identifier that is generated by the user's trusted, secure device to the transaction provider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.