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1. 发明申请

WO2007045937A1 SECURITY IN WIRELESS ENVIRONMENTS USING OUT-OF-BAND CHANNEL COMMUNICATION 审中-公开
标题翻译：使用带外通道通信的无线环境中的安全性
公开(公告)号：WO2007045937A1
公开(公告)日：2007-04-26
申请号：PCT/IB2005/003107
申请日：2005-10-18
申请人： NOKIA CORPORATION , KOSTIAINEN, Kari , EKBERG, Jan-Erik , SAXENA, Nitesh
发明人： KOSTIAINEN, Kari , EKBERG, Jan-Erik , SAXENA, Nitesh
IPC分类号： H04L12/22 , H04B10/10 , H04Q7/20
CPC分类号： H04L63/0492 , H04B10/1143 , H04L63/18 , H04W12/04 , H04W76/10
摘要： A methodology of using an (preferably uni-directional) out-of-band channel for secure information transmission between two devices capable for LPRF communication is provided. Information, which is intended for secure transmission from one of the devices to the other device, is encoded into a time dependent visual sequence. The visual sequence may comprise one or more visual signals, in particular lighted-up and dark states. The visual sequence is emitted in a time-dependent visual signal by a light emitter of the one device and the emitted signal is detected by a light sensor of the other device on the basis of the detected signal. The time-dependent signal especially timely varies in the light intensity. The light sensor generates a (time-dependent) sequence of detection signals. These detection signals are decoded to reconstruct the information intended for secure transmission. The out-of-band channel transmission of the information being separate from the LPRF communication enables to transmit a shared secret. The shared secret is required for secure authentication of the devices during initialization of the LPRF communication.
摘要翻译：提供了一种在两个能够进行LPRF通信的设备之间使用（优选地是单向的）带外信道用于安全信息传输的方法。用于从一个设备到另一个设备的安全传输的信息被编码成时间依赖的视觉序列。视觉序列可以包括一个或多个视觉信号，特别是点亮和暗态。视觉序列由一个装置的光发射器以时间相关的视觉信号发射，并且所发射的信号由另一装置的光传感器基于检测到的信号检测。时间依赖信号在光强度方面特别及时地变化。光传感器产生（时间依赖）的检测信号序列。这些检测信号被解码以重建用于安全传输的信息。与LPRF通信分离的信息的带外信道传输能够发送共享秘密。在LPRF通信初始化期间，需要使用共享密钥进行安全认证。

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