| 摘要 |
An identifying method of the present invention is to indicate and confirm identification with ease. A communication terminal device sends communication data and a communication discrimination code, to which a certification mark to identify a user of the communication terminal device has been added, as data indicating a sender. While, an identification confirming device receives the communication data and the communication discrimination code accompanied with the communication data, so as to extract the certification mark from the communication discrimination code. Thus, the user of the communication terminal device who is the sender can indicate identification, which identifies the user, without performing a special operation. While, a receiver can confirm the identification of the sender only by extracting the certification mark from the communication discrimination code in accordance with an identification confirming device.
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