Privacy method, device and computer program

摘要

The present invention relates to a privacy method for responding to read request. The present invention further relates to a device for generating a response signal and a computer program product. Methods and systems in accordance with embodiments of the invention validate, whether a read request is directed at a target tag to be protected, and, upon a match, respond to the read request by sending a response signal.

主权项

1. A computer-implemented privacy method, comprising steps of:
an anonymizer device reading at least one data value for a target tag that is to be protected, wherein the at least one data value comprises a target tag identifier of the target tag, the anonymizer device generating a first set of tag identifiers; the anonymizer device detecting a read request satisfying a specified condition, whereby a read request comprising a specified prefix is detected; the anonymizer device comparing the specified prefix to the target tag identifier and to all tag identifiers of the first set of tag identifiers; and the anonymizer device responding to the read request by sending a response signal if the specified prefix of the read request matches at least one of the target tag identifier and any one of the tag identifiers of the first set of tag identifiers, such that the response signal collides with a further response signal of the target tag.