WO2012006830A1

WO2012006830A1 - Mobile terminal and encryption method thereof

Info

Publication number: WO2012006830A1
Application number: PCT/CN2010/077893
Authority: WO
Inventors: 王武斌; 张芝萍; 傅启洪; 裴莉辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-07-14
Filing date: 2010-10-19
Publication date: 2012-01-19
Also published as: CN101895396A

Abstract

The present invention discloses a mobile terminal and an encryption method thereof. The mobile terminal includes: a password management module used for managing a first password and a second password of the mobile terminal, wherein the first password is used for encrypting a first encryption level file in the mobile terminal, the second password is used for encrypting a second encryption level file in the mobile terminal, and the second encryption level is higher than the first encryption level; a password receiving module used for receiving the first password or the second password input by a user of the mobile terminal; a file display module used for displaying the first encryption level file according to the first password and displaying the first encryption level file and the second encryption level file according to the second password. The present invention avoids exposure of the second encryption level file in the mobile terminal and ensures safety of the file.

Description

The present invention relates to the field of communications, and in particular to a mobile terminal and an encryption method thereof. BACKGROUND At present, various types of mobile terminals have a password protection function, which can generally protect important files or information stored in a mobile terminal by setting a password, and only the correct password can be input to view the encrypted content. This method effectively prevents the leakage of information, but at the same time, there are also hidden dangers: People who are closely related to the owner of the mobile terminal (such as a lover, a child, etc.) may obtain the password by asking the owner of the mobile terminal, and then The mobile terminal decrypts to know the encrypted content in the mobile terminal. It can be seen that the current mobile terminal encryption technology, encryption or decryption operation is public, and anyone may know that the mobile terminal is encrypted, thereby causing the above to move in the case that some people have to inform the mobile terminal of the password. Exposure of encrypted information in the terminal. SUMMARY OF THE INVENTION The present invention is directed to the disclosure of an operation of encrypting or decrypting a mobile terminal in the related art, thereby causing anyone to know that the mobile terminal has been encrypted. Therefore, the main object of the present invention is to provide a mobile terminal and Its encryption method to solve the above problems. In order to achieve the above object, according to an aspect of the present invention, a mobile terminal is provided. The mobile terminal of the present invention includes: a password management module, configured to manage a first password and a second password of the mobile terminal, where the first password is used to encrypt a file of a first encryption level in the mobile terminal, The second password is used to encrypt the file of the second encryption level in the mobile terminal, and the second encryption level is higher than the first encryption level; the password receiving module is configured to receive the first password or the second password input by the user of the mobile terminal. And a file display module, configured to display the first encryption level file in the first password; and a file for displaying the first encryption level and the second encryption level according to the second password. Further, the mobile terminal further includes: a receiving module, configured to receive an encrypted message that encrypts the file; a determining module, configured to determine whether the password received by the password receiving module is a second password; and the encryption module is configured to: Yes, according to the encrypted message, the second encryption level is used to encrypt the file with the second password. Further, the password management module is further configured to set the second password when the mobile terminal is used for the first time. Further, the mobile terminal further includes a password repairing module, configured to prompt the user 4 to tamper with the first password and/or the second password. In order to achieve the above object, according to another aspect of the present invention, a method for force density of a mobile terminal is also provided. The mobile terminal encryption method according to the present invention includes: the mobile terminal encrypts the file of the first encryption level using the first password, and encrypts the file of the second encryption level with the second password, wherein the second encryption level is higher than a first encryption level; the mobile terminal receives the first password input by the user, and displays the file of the first encryption level according to the first password; or the mobile terminal receives the second password input by the user, and displays the first encryption according to the second password Level file and file at the second encryption level. Further, before the mobile terminal encrypts the file of the second encryption level by using the second password, the method further includes: the mobile terminal receives the encrypted message for encrypting the file, and the password input by the user; the mobile terminal determines whether the password is The second password; if the judgment result is yes, the mobile terminal performs an operation of encrypting the file using the second password according to the encrypted message. Further, the mobile terminal sets the second password when it is first used. Further, before the second password is set by the mobile terminal during the first use, the method further includes: the mobile terminal receiving the first password input by the user; the mobile terminal prompting the user to select whether to perform the setting of the second password, and receiving the selection result of the user If the result of the selection is YES, the operation of setting the second password is performed. Further, if the result of the selection is no, the setting of the second password is no longer prompted in subsequent use. Further, the method further includes: the mobile terminal prompting the user to tamper with the first password and/or the second password. According to the present invention, the file display module has the first password and only displays the first encryption level. The file does not prompt that the file of the second encryption level still exists, which solves the problem that the mobile terminal discloses the operation of encrypting or decrypting in the related art, thereby causing anyone to know that the mobile terminal has been encrypted, and avoiding the problem in the mobile terminal. The exposure of the second encryption level file ensures file security. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the structure of a mobile terminal according to an embodiment of the present invention; FIG. 2 is a block diagram showing the structure of a mobile terminal according to a preferred embodiment of the present invention; FIG. 3 is a mobile terminal encryption according to an embodiment of the present invention. FIG. 4 is a flowchart of a mobile terminal password setting when a normal password function is turned on according to an embodiment of the present invention; FIG. 5 is a mobile terminal password setting when a normal password function is not turned on according to an embodiment of the present invention; Figure 6 is a flow chart of file browsing in an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. For some problems in the implementation of the encryption setting of the mobile terminal, the present invention provides an implementation method for making the encryption setting of the mobile terminal relatively invisible. The method described in the present invention can achieve better implementation of others even if the mobile terminal is obtained and is familiar with the mobile. In the case of the terminal encryption operation, it is also impossible to know whether or not the encrypted content is set in the mobile terminal. It also ensures that all encrypted content is still not visible when others know the mobile terminal password. According to an embodiment of the present invention, a mobile terminal is provided. FIG. 1 is a structural block diagram of a mobile terminal according to an embodiment of the present invention, including a password management module 11, a password receiving module 12, and a file display. Module 13. The structure is described in detail below. The password management module 11 is configured to manage the first password and the second password of the mobile terminal, where the first password is used to encrypt the file of the first encryption level in the mobile terminal, and the second password is used to the mobile terminal. The file of the second encryption level is encrypted, and the second encryption level is higher than the first encryption level. The password receiving module 12 is configured to receive a first password or a second password input by a user of the mobile terminal. The file display module 13 is connected to the password management module 11 and the password receiving module 12, and configured to display the first encryption level file corresponding to the first password managed by the password management module 11 according to the first password received by the password receiving module 12; For the second password received by the password receiving module 12, the file of the first encryption level corresponding to the first password managed by the password management module 11 and the file of the second encryption level corresponding to the second password managed by the password management module 11 are displayed. It should be noted that, when the file display module 13 displays the first encryption level file corresponding to the first password managed by the password management module 11 according to the first password received by the password receiving module 12, the second encryption is not prompted. Level file. In the related art, the mobile terminal discloses an operation of encrypting or decrypting, thereby causing anyone to know that the mobile terminal has been encrypted. In the embodiment of the present invention, the mobile terminal uses two sets of passwords of the first password and the second password, and when the user inputs the first password, the mobile terminal only displays the file of the first encryption level corresponding to the first password, and The user is prompted to have a second encryption level file. Since the user who knows the first password does not know that there is still a file of the second encryption level, it is impossible to know that the mobile terminal has also encrypted with the second password. In this way, the exposure of the file of the second encryption level in the mobile terminal can be avoided, and the file security is ensured. Preferably, the mobile terminal further includes: a receiving module 14, a determining module 15, and an encryption module 16. The structure is described in detail below. The receiving module 14 is configured to receive an encrypted message for encrypting the file, and the determining module 15 is connected to the password receiving module 14 for determining whether the password received by the password receiving module 14 is a second password. The encryption module 16 is connected to the determining module. 15 . When the determination result of the determination module 15 is YES, according to the encrypted message received by the receiving module 14 , the second encryption level is used to perform the second encryption level of the file. It should be noted that the preferred embodiment describes a process of encrypting a file of a second encryption level. Considering the concealment of the second password and the file of the second encryption level, the mobile terminal does not make a clear prompt for the user, for example, "Please enter the second password." Therefore, the password received by the password receiving module 14 may be the first password or the second password. When the determining module 15 determines that the password received by the password receiving module 14 is the second password, the file is subjected to the second encryption level. Encryption, otherwise the file is encrypted at the first encryption level to improve the security of the mobile terminal. Preferably, the password management module 11 is further configured to set the second password when the mobile terminal is used for the first time. It should be noted that, in the subsequent preferred use, the mobile terminal in the preferred embodiment will not prompt the setting of the second password, thereby preventing others who can access the mobile terminal from knowing the existence of the second password, and improving the second. The concealment of the password. Preferably, the mobile terminal further includes a password repairing module 17 for prompting the user 4 to tamper with the first password and/or the second password. It should be noted that the preferred embodiment describes a tampering process for the second password. In view of the concealment of the second password, the mobile terminal does not make a clear prompt for the user, for example, "Please enter the second password." Therefore, the password received by the password receiving module 14 may be the first password or the second password. When the determining module 15 determines that the password received by the password receiving module 14 is the second password, the user 4 is allowed to tamper with the second password. Otherwise, the user is only allowed to tamper with the first password, thereby improving the concealment of the second password. The present invention also provides a preferred embodiment, which incorporates the technical solutions of the above-mentioned plurality of preferred embodiments, which will be described in detail below with reference to FIG. 2 is a structural block diagram of a mobile terminal according to a preferred embodiment of the present invention, including a password setting module and a password management module, wherein the password setting module is responsible for completing setting and changing of a normal password and an advanced password, and simultaneously implementing two sets of passwords. Does not affect. The password setting module is responsible for calling the password management module to implement the password saving function and the current password information acquisition function. The password management module uses two access areas: a normal password (corresponding to the first password described above) storage area and an advanced password (corresponding to the second password described above) storage area. The folder browser determines the currently input password information by calling the password management module, and displays different contents according to different password information. According to an embodiment of the present invention, a mobile terminal encryption method is also provided. FIG. 3 is a flowchart of a method for encrypting a mobile terminal according to an embodiment of the present invention, including the following step 4: S302 to step S304. Step S302: The mobile terminal encrypts the file of the first encryption level by using the first password, and encrypts the file of the second encryption level by using the second password, where the second encryption level is higher than the first encryption level. Step 4: S304, the mobile terminal receives the first password input by the user, and displays the file of the first encryption level according to the first password; or the mobile terminal receives the second password input by the user, and displays the second password according to the second password. An encryption level file and a second encryption level file. It should be noted that, when the mobile terminal displays the file of the first encryption level according to the first password, it does not prompt that the file of the second encryption level still exists. In the related art, the mobile terminal discloses an operation of encrypting or decrypting, thereby causing anyone to know that the mobile terminal has been encrypted. In the embodiment of the present invention, the mobile terminal uses two sets of passwords of the first password and the second password, and when the user inputs the first password, the mobile terminal only displays the file of the first encryption level corresponding to the first password, and The user is prompted to have a second encryption level file. Since the user who knows the first password does not know that there is still a file of the second encryption level, it is impossible to know that the mobile terminal has also encrypted with the second password. In this way, the exposure of the file of the second encryption level in the mobile terminal can be avoided, and the file security is ensured. Preferably, before the mobile terminal encrypts the file of the second encryption level by using the second password, the mobile terminal receives the encrypted message for encrypting the file, and the password input by the user; the mobile terminal determines whether the password is the second password. If the judgment result is yes, the mobile terminal performs an operation of encrypting the file using the second password according to the encrypted message. It should be noted that the preferred embodiment describes a process of encrypting a file of a second encryption level. Considering the concealment of the second password and the file of the second encryption level, the mobile terminal does not make a clear prompt for the user, for example, "Please enter the second password." Therefore, the password received by the mobile terminal may be the first password or the second password. When the mobile terminal determines that the password is the second password, the file is encrypted by the second encryption level, otherwise the file is first encrypted. Level of encryption to improve the security of mobile terminals. Preferably, the mobile terminal sets the second password when it is first used. And, before setting the second password, the mobile terminal receives the first password input by the user; the mobile terminal prompts the user to select whether to perform the setting of the second password, and receives the selection result of the user; if the selection result is yes, the pair is executed The second password is set to operate. If the result of the selection is no, it will not be used in subsequent use. Then prompt to set the second password. It should be noted that, in the subsequent preferred use, the mobile terminal in the preferred embodiment will not prompt the setting of the second password, thereby preventing others who can access the mobile terminal from knowing the existence of the second password, and improving the second. Password security. Preferably, the mobile terminal prompts the user to tamper with the first password and/or the second password. It should be noted that the preferred embodiment describes a tampering process for the second password. In view of the concealment of the second password, the mobile terminal does not make a clear prompt for the user, for example, "Please enter the second password." Therefore, the password received by the mobile terminal may be the first password or the second password. When the mobile terminal determines that the received password is the second password, the user is allowed to modify the second password. Otherwise, the user is only allowed to ^^. Change the first password to improve the concealment of the second password. To assist in understanding the above embodiments, other preferred embodiments of the present invention are further described below. Preferred Embodiment 1 This preferred embodiment describes a process of setting a password of a mobile terminal when a normal password (corresponding to the first password described above) is turned on. FIG. 4 is a flowchart of the password setting of the mobile terminal when the normal password function is turned on according to the embodiment of the present invention, and includes the following steps S402 to S410. Step S402: The user enters the password setting module, and the setting module determines whether it is the first entry, if it is to go to step S404, if not, then to step S408. Step S404: Prompt the user whether to set an advanced password. If yes, go to step S406; if not, exit the password setting module. Step S406: Perform advanced password setting processing, and exit the password setting module after the setting is completed. Step S408: Wait for the user to input the password of the mobile terminal. If the input password is a normal password, go to step S410; if the input password is a high-level password, go to step S406. Step S410: Perform normal password setting processing, and exit the password setting module after setting. Step S412: Determine whether it is an advanced password? If the determination result is yes, step S406 is performed. Otherwise, step S410 is performed. Preferred Embodiment 2 This preferred embodiment 2 describes the process of setting the password of the mobile terminal when the normal password function is not turned on. FIG. 5 is a flowchart of the mobile terminal password setting when the normal password function is not turned on according to the embodiment of the present invention, and includes the following steps S502 to S508. Step S502: The user enters the password setting module, and the setting module determines whether it is the first entry. If yes, the process goes to step S504, and if not, the process goes to step S508. Step S504: Prompt the user whether to set an advanced password. If yes, go to step S506; if not, exit the password setting module. Step S506: Perform advanced password setting processing, and exit the password setting module after setting. Step S508: Determine whether the user inputs an advanced password. If the advanced password is entered, go to step S506, and if the advanced password is not entered, exit the password setting module. Preferred Embodiment 3 This preferred embodiment 3 describes a process of performing file browsing after the password setting is completed based on the preferred embodiment 1. FIG. 6 is a flow chart of file browsing according to an embodiment of the present invention, including the following steps S602 to S610. Step S602: Enter a folder browser module to determine whether the user inputs a password of the mobile terminal. If the mobile terminal password is not input, go to step S604; if the password is entered, go to step S606. Step S604: The folder browser displays the unencrypted content in the mobile terminal. Step S606: Determine the type of the input password. If the input password is a normal password, go to step S608; if the input password is a high-level password, go to step S610. Step S608: The folder browser displays unencrypted content and generally encrypted content in the mobile terminal. Step S610: The folder browser displays all the contents. The preferred embodiment passes forces. A secret password is distinguished to display a file of the corresponding encryption level. Specifically, when the user inputs the normal password in step S608, the mobile terminal only displays the unencrypted content and the normally encrypted content, and does not prompt the user to still have the advanced encrypted content. Since the user who knows the normal password does not know that there is still advanced encrypted content, it is impossible to know that the mobile terminal is also encrypted with the advanced password, thereby avoiding exposure of files with higher encryption levels in the mobile terminal, and ensuring file security. . The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the present invention may be variously modified and changed. The scope of the present invention is defined by the claims. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein. The invention can easily distinguish the encryption setting (advanced password encryption or second password encryption) of the mobile terminal owner from the general mobile terminal encryption setting (usually password encryption or first password encryption), even if it is known that the encryption is usually Unable to detect the functionality of advanced encryption, and advanced encryption can have all the permissions normally encrypted, and vice versa. In addition, usually encryption and advanced encryption do not affect each other. Usually, the password can be set whether the password is turned on or off, so that the average user seems to have no password protection. In summary, in the foregoing embodiment of the present invention, the file display module only displays the file of the first encryption level according to the first password, and does not prompt that the file of the second encryption level still exists, and solves the related art. The terminal discloses the operation of encrypting or decrypting, thereby causing anyone to know that the mobile terminal has been encrypted, avoiding the exposure of the second encryption level file in the mobile terminal, and ensuring file security. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any particular hardware and software. Piece combination. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claims A mobile terminal, characterized in that it comprises:

a password management module, configured to manage a first password and a second password of the mobile terminal, where the first password is used to encrypt a file of a first encryption level in the mobile terminal, where the second password is And a file for encrypting a second encryption level in the mobile terminal, and the second encryption level is higher than the first encryption level;

a password receiving module, configured to receive the first password or the second password input by a user of the mobile terminal;

a file display module, configured to display the file of the first encryption level according to the first password; and a file for displaying the first encryption level and the second encryption according to the second password Level file. The mobile terminal according to claim 1, further comprising:

a receiving module, configured to receive an encrypted message that encrypts the file;

a determining module, configured to determine whether the password received by the password receiving module is the second password;

And an encryption module, configured to perform, according to the encrypted message, the second encryption level of the file according to the encrypted message according to the encrypted message. The mobile terminal according to claim 1, wherein the password management module is further configured to set the second password when the mobile terminal is used for the first time. The mobile terminal according to claim 1, further comprising:

Password repair _? The module is configured to prompt the user 4 to tamper with the first password and/or the second password. A mobile terminal encryption method, comprising: a mobile terminal encrypting a file of a first encryption level by using a first password, and encrypting a file of a second encryption level by using a second password, wherein the second encryption The level is higher than the first encryption level; Receiving, by the mobile terminal, the first password input by the user, and displaying the file of the first encryption level according to the first password; or receiving, by the mobile terminal, the second password input by the user And displaying the file of the first encryption level and the file of the second encryption level according to the second password. The method according to claim 5, further comprising: before the encrypting, by the mobile terminal, the file of the second encryption level by using the second password,

The mobile terminal receives an encrypted message for encrypting a file, and a password input by the user;

The mobile terminal determines whether the password is the second password;

If the result of the determination is yes, the mobile terminal performs an operation of encrypting the file using the second password according to the encrypted message. The method according to claim 5, wherein the mobile terminal sets the second password when it is first used. The method according to claim 7, wherein before the setting, by the mobile terminal, the second password is used for the first time, the method further includes:

Receiving, by the mobile terminal, the first password input by a user;

The mobile terminal prompts the user to select whether to perform setting of the second password, and receives a selection result of the user;

If the result of the selection is YES, an operation of setting the second password is performed. The method according to claim 8, wherein if the selection result is no, the setting of the second password is no longer prompted in subsequent use. The method according to claim 5, further comprising:

The mobile terminal prompts the user 4 to tamper with the first password and/or the second password.