Real-time asset tracking using discovery services

US9064229B2 · kind B2 · utility

Assignee

• SAP SE · DE

Inventors

• Leonardo Weiss F. Chaves · Karlsruhe, DE
• Florian Kerschbaum · Walldorf, DE

Key dates

• Filing date: May 7, 2012
• Grant date: Jun 23, 2015
• Expiry date: May 7, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2209/805
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Implementations of the present disclosure are directed to sharing data in a supply chain, the data corresponding to an item having a tag associated therewith. Methods include storing item-level data in a computer-readable repository, determining endpoint data, the endpoint data indicating a location of the item-level data, determining a random number from the tag, the random number unique to the item, selecting a first integer and a second integer, generating a first public key based on the first integer and a semi-public key based on the second integer, generating an identifier based on the first public key and the random number, generating a key based on the semi-public key and the random number, encrypting the endpoint data using the key to provide encrypted endpoint data, defining a tuple comprising the identifier and the encrypted endpoint data, and transmitting the tuple over a network for storage in a persistent storage device.