Patent ID: 8577293
Filing Date: 2013-11-05
Classification: H04L,H04W

Abstract:
1. A communication apparatus, comprising: a short-range communication unit configured to receive an inquiry signal from a short-range external communication apparatus and to transmit a response signal in response to the inquiry signal; a long-range communication unit configured to communicate in a range wider than a communication area of the short-range communication unit; a session key generation unit configured to generate a session key; and an encrypting unit configured to encrypt the session key, wherein the communication apparatus uses an encryption key transmitted from an external communication apparatus to encrypt the session key into an encrypted session key, transmits the encrypted session key to the external communication apparatus, and receives from the external communication apparatus, via the short-range communication unit, a communication switching request signal to request a switching from a short-range communication by the short-range communication unit to a long-range communication, with the session key, by the long-range communication unit.