Method and system for providing secure message

1. A non-transitory computer-readable medium storing computer readable instructions that, when executed by at least one processor, cause the at least one processor to perform a secure message providing method on a computer apparatus, the secure message providing method comprising:

establishing a communication session between an account of a first user and an account of a second user through a messaging service;

receiving a secure message from a first terminal of the first user through the established communication session, the secure message including content that is hidden;

receiving a secure condition corresponding to the secure message through the established communication session, the secure condition set by the first user;

determining whether a condition of a second terminal of the second user meets the received secure condition; and

displaying the content of the secure message on the second terminal through a user interface corresponding to the established communication session while the secure condition is being met, the content being enabled for viewing by the second user,

wherein the secure condition includes a brightness value or a brightness value range of a display selected or input from the first user on the first terminal; and

the determining comprises determining that the received secure condition is met while a brightness value of a display of the second terminal corresponds to the brightness value or the brightness value range included in the secure condition.

2. The non-transitory computer-readable medium of claim 1 , wherein the secure condition further includes at least one of:

a first condition that information on at least one of a text, an image, an audio, and a video selected or input from the first user on the first terminal of the first user is selected, input, displayed, and/or played on the second terminal;

a second condition that environment setting information selected or input from the first user on the first terminal of the first user is set to the second terminal of the second user; and

a third condition that the second terminal of the second user is located at a geographical location or place selected or input from the first user on the first terminal of the first user.

3. The non-transitory computer-readable medium of claim 1 , wherein the secure message providing method further comprises:

storing the received secure message in a message database on the second terminal; and

storing the secure condition in a secure area of the second terminal.

4. The non-transitory computer-readable medium of claim 1 , wherein

the secure condition includes an image selected or input by the first user on the first terminal; and

the determining comprises determining that the received secure condition is met while the same image as the image included in the secure condition is selected or input through a function of the user interface displayed on the second terminal and is being displayed through the user interface.

5. The non-transitory computer-readable medium of claim 4 , wherein

the secure message providing method further comprises,

setting a first area in the user interface, the first area associated with the secure message; and

the displaying further comprises,

displaying, on the user interface, the same image selected or input through the function of the user interface on the second terminal,

adjusting a location of a second area on which the same image is displayed in response to an input of the second user on the same image displayed on the user interface, and

displaying at least a portion of the content of the secure message on a third area of the user interface on which the second area is overlaid on the first area.

6. The non-transitory computer-readable medium of claim 1 , wherein

the secure condition includes audio data selected or input from the first user on the first terminal of the first user; and

the determining comprises determining that the received secure condition is met while the audio data included in the secure condition is being input through an audio input device included in the second terminal.

7. The non-transitory computer-readable medium of claim 1 , wherein

the secure message providing method further comprises,

displaying notification information through the user interface in response to the received secure condition not being met, the notification information regarding reception of the secure message, and

the displaying of the content of the secure message further comprises,

replacing the notification information with the content of the secure message, and

displaying the content of the secure message through the user interface while the secure condition is being met, the content being enabled for viewing.

8. The non-transitory computer-readable medium of claim 7 , wherein

the receiving comprises further receiving display information to be displayed as the notification information from the first terminal; and

the displaying of the notification information comprises displaying the received display information through the user interface as the notification information.

9. A non-transitory computer-readable medium storing computer readable instructions that, when executed by at least one processor, cause the at least one processor to perform a secure message providing method on a computer apparatus, the secure message providing method comprising:

establishing a communication session between an account of a first user and an account of a second user through a messaging service;

generating a user interface, the user interface for setting a secure condition for a secure message, the secure message including content that is hidden;

verifying the secure condition set by the first user on a first terminal of the first user using the user interface; and

transmitting the secure message and the set secure condition to a second terminal of the second user through the communication session, the transmitting of the secure message causing the second terminal to display the secure message while the set secure condition is being met by the second terminal, the content being enabled for viewing by the second user,

wherein the verifying comprises verifying a brightness value or a brightness value range of a display selected or input by the first user as the secure condition, and

the transmitting comprises transmitting the secure message and the selected or input brightness value or brightness value range to the second terminal through the communication session, the transmitted secure message causing the second terminal to display the secure message while a brightness value of a display of the second terminal corresponds to the verified brightness value or brightness value range.

10. The non-transitory computer-readable medium of claim 9 , wherein the secure condition comprises at least one of:

a first condition that information on at least one of a text, an image, an audio, and a video selected or input from the first user on the first terminal of the first user is selected, input, displayed, and/or played on the second terminal;

a second condition that environment setting information selected or input by the first user on the first terminal of the first user is set to the second terminal of the second user; and

a third condition that the second terminal of the second user is located at a geographical location or place selected or input from the first user on the first terminal of the first user.

11. The non-transitory computer-readable medium of claim 9 , wherein

the verifying comprises verifying an image selected or input by the first user as the secure condition; and

the transmitting comprises transmitting the secure message and the verified image to the second terminal through the communication session, the transmitted secure message causing the second terminal to display the secure message while the verified image is selected or input by the second user and is being displayed on the second terminal through the user interface.

12. The non-transitory computer-readable medium of claim 9 , wherein

the verifying comprises verifying audio data selected or input by the first user as the secure condition; and

the transmitting comprises transmitting the secure message and the verified audio data to the second terminal through the communication session, the transmitted secure message causing the second terminal to display the secure message while the verified audio data is being input through an audio input device included in the second terminal.

13. A secure message providing method comprising:

establishing, using at least one processor, a communication session between an account of a first user and an account of a second user through a messaging service;

receiving, using the at least one processor, a secure message from a first terminal of the first user through the established communication session, the secure message including content that is hidden;

receiving, using the at least one processor, a secure condition corresponding to the secure message through the established communication session, the secure condition set by the first user;

determining, using the at least one processor, whether a second terminal of the second user meets the received secure condition; and

displaying, using the at least one processor, the content of the secure message through a user interface corresponding to the established communication session while the secure condition is being met, the content being enabled for viewing by the second user,

wherein the secure condition comprises a brightness value or a brightness value range of a display selected or input by the first user, and

the determining comprises determining that the received secure condition is met while a brightness value of a display of the second terminal of the second user corresponds to the brightness value or the brightness value range included in the secure condition.

14. The secure message providing method of claim 13 , wherein the secure condition further includes at least one of:

a first condition that information on at least one of a text, an image, an audio, and a video selected or input from the first user on the first terminal of the first user is selected, input, displayed, and/or played on the second terminal;

a second condition that environment setting information selected or input by the first user on the first terminal of the first user is set to the second terminal of the second user; and

a third condition that the second terminal of the second user is located at a geographical location or place selected or input from the first user on the first terminal of the first user.

15. The secure message providing method of claim 13 , wherein

the secure condition comprises image data selected or input by the first user; and

the determining comprises determining that the received condition is met while the same image as the image included in the secure condition is selected or input through a function of the user interface on the second terminal and is being displayed through the user interface.

16. The secure message providing method of claim 13 , wherein

the secure condition comprises audio data selected or input by the first user; and

the determining comprises determining that the received secure condition is met while the audio data included in the secure condition is being input through an audio input device included in the second terminal.