The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2017
Filed:
Jul. 15, 2013
China Iwncomm Co., Ltd., Xi'an, Shaanxi, CN;
China IWNCOMM Co., LTD., Xi'an, Shaanxi, CN;
Abstract
A one-way key switching method and an implementation device. The method comprises: after obtaining a new key and before deducing or determining that at least n receivers obtain the new key, a sender setting the sending direction of the new key as unavailable and keeping the sending direction of an original key as available; after obtaining the new key and before deducing or determining that at least n receivers obtain the new key, before the original key is invalid, the sender starting up a key switching process, i.e. setting the sending direction of the original key as unavailable and setting the sending direction of the new key as available; where N≧n≧1, N is the total number of the receivers corresponding to the sender.