Title:
Methods and devices for obscuring device identifiers
Document Type and Number:
Japanese Patent JP6290104
Kind Code:
B2
Abstract:
Methods, systems and devices enable synchronizing obscured identification information between a wireless identity transmitter and a central server to support one-way communication of the obscured identification information to the central server. The wireless identity transmitter may be a compact device configured to broadcast messages, such as through Bluetooth® advertisements, including an obscured identifier for receipt and relay to the central server by proximate proximity broadcast receivers via sighting messages that may also include location information. The central server may decode received identification codes to identify the wireless identity transmitter. The wireless identity transmitter may create message data by concatenating identifying information with an incrementing nonce, encrypting the concatenated information, and truncating the encrypted information. Alternatively, concatenated identification information may be encrypted with a pseudo-random function and a secret key known by the central server. The central server that may compare received data to pre-calculated encrypted data.
More Like This:
| WO/2020/128639 | SYSTEMS AND METHODS FOR MANAGING A TRUSTED APPLICATION IN A COMPUTER CHIP MODULE |
| WO/2004/064316 | TELECOMMUNICATION-ASSISTED TIME STAMP |
| JP2010019956 | PROJECTOR |
Inventors:
Worster, Charles S.
Shan, Nin
Thomas, Panos
Sprig, Stephen A.
Hallfeld, Matthew
McLean, Ivan Hugh
Shan, Nin
Thomas, Panos
Sprig, Stephen A.
Hallfeld, Matthew
McLean, Ivan Hugh
Application Number:
JP2014558887A
Publication Date:
March 07, 2018
Filing Date:
February 22, 2013
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04L9/32; G06F21/44; H04W12/08; H04W84/10
Domestic Patent References:
| JP2005167670A | ||||
| JP2005078267A | ||||
| JP2006032997A | ||||
| JP2011248562A | ||||
| JP2010041410A | ||||
| JP2006053800A |
Foreign References:
| WO2005031579A1 |
Other References:
WEIS S.A. ET AL.,Security and privacy in Radio-frequency identification devices,MASTERS THESIS,MIT[online],2003年 3月,[retriebed on 2008-07-10]. Retrieved from the Internet,URL,http://groups.csail.mit.edu/cis/theses/weis-masters.pdf
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Takashi Okada
Yoshihiro Fukuhara
Morisezo Iseki
Takashi Okada