United States Patent 9,774,457
Shah , et al. September 26, 2017
Secure time functionality for a wireless device
Abstract
The present invention is related to a wireless transmit/receive unit (WTRU) for providing advanced security functions. The WTRU includes trusted platform module (TPM) for performing trusted computing operations; and a secure time component (STC) for providing a secure measurement of a current time. The STC and the TPM are integrated to provide accurate trusted time information to internal and external to the WTRU. The STC may be located on an expanded a subscriber identity module (SIM), on the WTRU platform, or two STCs may be used, one in each location. Similarly, the TPM may be located on an expanded SIM, on the WTRU platform, or two TPMs may be used, one in each location. Preferably, the STC will include a real time clock (RTC); a tamper detection and power failure unit; and a time report and sync controller.
Inventors:
Shah; Yogendra C. (Exton, PA), Cha; Inhyok (Seoul, KR)
Applicant:
Name
City
State
Country
Type
InterDigital Technology Corporation
Wilmington
DE
US
Assignee:
InterDigital Technology Corporation (Wilmington, DE)
Family ID:
1000002855446
Appl. No.:
15/250,211
Filed:
August 29, 2016
Prior Publication Data
Document Identifier
Publication Date
US 20160373265 A1 Dec 22, 2016
Related U.S. Patent Documents
Application Number
Filing Date
Patent Number
Issue Date
14298238 Jun 6, 2014 9432362
11745697 Jun 17, 2014 8756427
60798987 May 9, 2006
60826653 Sep 22, 2006
60910471 Apr 6, 2007
Current U.S. Class: 1/1
Current CPC Class: H04L 9/3297 (20130101); G06F 21/725 (20130101); H04L 9/3234 (20130101); H04L 63/0853 (20130101); H04L 63/12 (20130101); H04W 12/10 (20130101); H04L 63/10 (20130101); H04L 63/126 (20130101); H04L 2463/101 (20130101); H04L 2463/102 (20130101); H04W 12/12 (20130101)
Current International Class: H04L 29/06 (20060101); H04W 12/10 (20090101); G06F 21/72 (20130101); H04L 9/32 (20060101); H04W 12/12 (20090101)
Field of Search: ;713/176,178
PPP
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