Development and Evaluation of No-Record Chat System Against Screen Capture

摘要

To prevent leakage of private information becomes serious issues in the field of information technology. The security of the telecommunication line is almost enough. However, the environment that does a secret conversation is insufficient through the network. We found that it can be embarrassed that the record of the conversation remains though a person wants to communicate privately with another. In this paper, we proposes the chat system that can take communications to solve the above-mentioned problem. We have developed a chat system named 'you-me Chat.' They cannot capture the screen of the conversation though users can read the conversation sentences in you-me Chat while chatting. In you-me Chat, the character is resolved to imperfect parts as image data. They are displayed continuously. They are imperfect characters even if a person preserved them on a PC as data. A person can read them for image lag of eyes. We present the effectiveness of the system from the experiments.