| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication apparatus which can transmit massive amounts of data in a short time, enables a user to control transmission of data at will, and achieves more secure communication.SOLUTION: A communication apparatus comprises: a first communication unit which transmits and receives signals through a part of a human body which is in contact or in the proximity; and a second communication unit which transmits and receives signals not through the human body. The second communication unit transmits encrypted information, and the first communication unit transmits a cryptographic key for decrypting the encrypted information. The communication apparatus can transmit massive amounts of data in a short time, enables a user to control transmission of data at will, and achieves more secure communication. |
