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US 8,769,616 B2Granted
Authentication of devices in a wireless network
AssigneeNXP B.V.
InventorsHarsh Dhand, Shinivasa Rao
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AssigneeNXP B.V.
InventorsHarsh Dhand, Shinivasa Rao
Estimating the term…
Various aspects are discussed, for example, a method is described for authentication of devices in a wireless network involving NFC (Near Field Communication), wherein a device periodically switches its mode from a read mode, in which it is able to receive authentication data from one or more other devices, to a write mode, in which it sends out authentication data to the one or more other devices, according to a random time slot scheme, the device authenticates itself after having received authentication data from another device during the read mode, and the device switches permanently its mode to the write mode after being authenticated.
An apparatus comprising:
An apparatus comprising:
A system comprising:
Dependencies are inferred from the claim text.
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Using separate channels for security data: wireless channels
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity: protecting data
Wherein the data content is protected, e.g. by encrypting or encapsulating the payload: by using a location-limited connection, e.g. near-field…
Security arrangements; Authentication; Protecting privacy or anonymity: authentication
About 2 years 4 months of term left · ends 8 Mar 2029 (estimated)
The invention relates to an authentication of devices in a wireless network, particularly a near field communication (NFC) network using an on-the-fly master-slave communication framework.
Nowadays many modern mobile devices such as a mobile phone or a personal digital assistant (PDA) are supporting more and more different data communication modes. For example, a modern mobile device can support the Bluetooth communication mode and one or more wireless local area network (LAN) modes. These modes allow to integrate the device into a network, such as a Personal Area Network (PAN) or a LAN.
Furthermore, the mobile devices are becoming personalized, i.e. each person carries her or his own mobile phone, PDA, laptop, etc.
The invention will be described in more detail hereinafter with reference to exemplary embodiments. However, the invention is not limited to these exemplary embodiments.
FIG. 1 shows an exemplary sequence of an authentication of devices in a wireless network according to the invention.
FIG. 2 shows a flowchart of an embodiment of an authentication of two devices according to the invention, when these devices are switched on.
In the following, the invention is explained with regard to Near Field Communication (NFC). NFC is a proximity-based, ultra low-power, single-chip wireless technology that allows information to be transmitted between devices over a distance of up to 10 cm (4 inches). For most wireless applications this ultra-short range would be considered a distinct disadvantage, but for NFC it is one of its greatest strengths. Ultra-short range not only means that devices must be placed intentionally close together in order to communicate, it also makes the resulting exchange of information inherently secure.
Although the invention is explained with regard to NFC, it should be noted that it is applicable to any wireless communication standard, particularly to WLAN standards, but also to the above mentioned mobile radio communication standards.
As explained above, using NFC has the distinct advantage especially in authentication applications because i. Being short range, it requires the devices to be very close together and hence ensures that only the user is doing it. ii. The encrypted data also ensures that sniffing and hacking the data used for authentication is not possible.