Patent ID: 8578162
Filing Date: 2013-11-05
Classification: G06F,H04L

Abstract:
1. A method for providing a unique identifier for an object like a product, an authorization for an access or similar, comprising the steps: a) providing a master key; b) generating a first random session key; and c) mixing the master key with the first random session key; d) providing an object key; and e) mixing the object key with the result of step c) i) dividing the result of step c) or e) into two partial lengths, wherein one partial length is mixed with the other partial length; and j) mixing the result of step c) or step e) with the result of step i); wherein one of the two partial lengths only includes character or bit sequences which are included in a provided second random session key and the other of the two partial lengths only includes character or bit sequences which are not included in the second random session key, wherein in particular the first random session key and the second random session key are provided as identical random session keys, and wherein the unique identifier or the master key are in a readable medium.