Generation, distribution and verification of tokens using a secure hash algorithm

US8224754B2 · kind B2 · utility

Assignee

• Microsoft Corporation · US

Inventors

• Andrzej Pastusiak · Redmond, US
• Arun Sacheti · Sammamish, US
• Ting Cai · Redmond, US
• Deuane J. Martin · Seattle, US
• Josh Benaloh · Redmond, US
• Rajesh Kuppuswamy · Chennai, IN

Key dates

• Filing date: Dec 15, 2004
• Grant date: Jul 17, 2012
• Expiry date: Feb 9, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q30/0207
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

Methods, systems, and apparatus for generation, distribution and verification of tokens are described. In an implementation, a method is described in which a value of an offer is determined and a token for representing the offer is generated. The token has a number of characters based on the determination of the value of the offer.