Security chat service providing method, security chat service providing system, communication terminal, and chat application

摘要

PROBLEM TO BE SOLVED: To provide a security chat service providing system.SOLUTION: A security chat service providing method includes: a message providing stage of, when a message is input into a chat input window on a chat screen by a user, a first terminal device 100_1 encrypting the message and providing an encrypted message for a second terminal device 100_2; a state confirmation stage of the second terminal device confirming the state of the chat input window of the chat screen upon receiving the encrypted message; and a message processing stage of the second terminal device processing the encrypted message depending on a result of the confirmation and outputting a processed result to the chat screen.SELECTED DRAWING: Figure 3