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Handling mismatch of cryptographic keys and related battery drain and communication exchange failures

US9030985B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9030985-B2
Application numberUS-201313848757-A
CountryUS
Kind codeB2
Filing dateMar 22, 2013
Priority dateOct 11, 2009
Publication dateMay 12, 2015
Grant dateMay 12, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A wireless communications device stores a first cryptographic key in connection with a profile, the profile indicating a security type requiring no credentials and a network name. An access point (AP) supports a wireless local area network (WLAN), the WLAN having the network name, the WLAN supporting the security type and the WLAN requiring a second cryptographic key for encryption. The wireless communications device successfully authenticates and associates with the AP, thus joining the WLAN. Subsequent to joining the WLAN, the wireless communications device conducts encrypted communications with the AP and detects from the encrypted communications that there is a mismatch between the first cryptographic key and the second cryptographic key. Responsive to detecting the mismatch, the wireless communications device bans the profile or the AP or both.

First claim

Opening claim text (preview).

What is claimed is: 1. A method to be performed in a wireless communications device, the method comprising: storing a first cryptographic key at the wireless communications device in connection with a profile, the profile indicating a security type requiring no credentials and a network name; successfully authenticating and associating with an access point (AP), thus joining a wireless local area network (WLAN) supported by the AP, the WLAN having the network name, the WLAN supp…

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View patent family 42752494

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Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9030985B2 cover?
A wireless communications device stores a first cryptographic key in connection with a profile, the profile indicating a security type requiring no credentials and a network name. An access point (AP) supports a wireless local area network (WLAN), the WLAN having the network name, the WLAN supporting the security type and the WLAN requiring a second cryptographic key for encryption. The wireles…
Who is the assignee on this patent?
Research In Motion Ltd, Blackberry Ltd
What technology area does this patent fall under?
Primary CPC classification H04W52/0225. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).