CN109150884B - Embedded device, login password protection method and storage medium - Google Patents
Embedded device, login password protection method and storage medium Download PDFInfo
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- CN109150884B CN109150884B CN201810989631.9A CN201810989631A CN109150884B CN 109150884 B CN109150884 B CN 109150884B CN 201810989631 A CN201810989631 A CN 201810989631A CN 109150884 B CN109150884 B CN 109150884B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
- H04L63/0838—Network architectures or network communication protocols for network security for authentication of entities using passwords using one-time-passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
- H04L63/0846—Network architectures or network communication protocols for network security for authentication of entities using passwords using time-dependent-passwords, e.g. periodically changing passwords
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Abstract
The invention discloses an embedded device, a login password protection method and a computer readable storage medium. After the embedded equipment is started and runs the preset type operating system, the embedded equipment establishes a preset type communication connection with a server; based on the established preset type communication connection, acquiring a password of a randomly generated system account from the server; and updating the password of the system account of the embedded device by using the acquired password of the system account. Compared with the prior art, the method and the device effectively improve the system security of the embedded device using the Linux operating system.
Description
Technical Field
The invention relates to the field of computer security, in particular to an embedded device, a login password protection method and a computer readable storage medium.
Background
At present, in embedded products existing in the market, an operating system used by most of the embedded products is a Linux operating system, and most of the embedded products such as a router, a Network Attached Storage (NAS) device and the like are Linux operating systems. In order to ensure the system security of such embedded products using Linux operating system, the existing system security solution is to close the Secure Shell (SSH) and Telnet (Telnet is the standard protocol and main mode of Internet remote login service, mainly used for Internet session, and its basic function is to allow the user to log in to the remote host system), and set a complex root login password (the root login password refers to the login password of the super administrator user account in UNIX system and UNIX-like system (e.g. Linux system), which has the high and useless power of the whole system, and all the objects can operate). The disadvantages of this existing system security solution are: because the login password is fixed, once the login password is cracked, the login authority of the device is opened, and the device can directly log in the Shell (Shell is a service that an application program user accesses the kernel of the operating system through an interface provided by the Shell) environment of the system through a terminal, an SSH and the like, so that all files in the system are exposed to a third party. Therefore, how to effectively improve the system security of the embedded product using the Linux operating system has become a technical problem to be solved urgently.
Disclosure of Invention
The invention mainly aims to provide an embedded device, a login password protection method and a computer readable storage medium, aiming at solving the problem of effectively improving the system security of an embedded product using a Linux operating system.
In order to achieve the above object, the present invention provides an embedded device, which includes a memory and a processor, where the memory stores a preset type operating system and a login password protection program that can run on the processor, and when executed by the processor, the login password protection program implements the following method:
after the embedded equipment is started and runs the preset type operating system, establishing a preset type communication connection with a server;
based on the established preset type communication connection, acquiring a password of a randomly generated system account from the server;
and updating the password of the system account of the embedded device by using the acquired password of the system account.
Preferably, the password of the system account is a ROOT password.
Preferably, the obtaining, from the server, a password of a randomly generated system account based on the established preset type communication connection includes:
searching and acquiring the password of the system account from a preset storage space of the server, wherein the password of the system account is randomly generated and stored in the preset storage space after the server successfully establishes the preset type communication connection; alternatively, the first and second electrodes may be,
and sending a password request to the server, receiving the password of the system account returned by the server in response to the password request, wherein the password of the system account is randomly generated by the server after receiving the password request, or is randomly generated by the server after the preset type communication connection is successfully established, and is stored in the preset storage space.
Preferably, the establishing a preset type communication connection with a server after the embedded device is started and runs the preset type operating system includes:
and when the communication connection fails, re-requesting to establish the preset type communication connection with the server every preset time.
Preferably, the processor executes the login password protection program, and further implements the following method:
regularly sending a password updating request to the server, and receiving a password of a new system account returned by the server in response to the password updating request;
and setting the password of the new system account into the system account of the preset type operating system, so that the user can log in the system account based on the password of the new system account.
Preferably, the obtaining, from the server, a password of a randomly generated system account based on the established preset type communication connection includes:
acquiring a randomly generated key from the server based on the established preset type communication connection;
and calculating the password of the system account corresponding to the secret key.
In order to achieve the above object, the present invention provides a login password protection method, which is suitable for an embedded device, and comprises:
after the embedded equipment is started and runs the preset type operating system, establishing a preset type communication connection with a server;
based on the established preset type communication connection, acquiring a password of a randomly generated system account from the server;
and updating the password of the system account of the embedded device by using the acquired password of the system account.
Preferably, the password of the system account is a ROOT password.
Preferably, the obtaining, from the server, a password of a randomly generated system account based on the established preset type communication connection includes:
searching and acquiring the password of the system account from a preset storage space of the server, wherein the password of the system account is randomly generated and stored in the preset storage space after the server successfully establishes the preset type communication connection; alternatively, the first and second electrodes may be,
and sending a password request to the server, receiving the password of the system account returned by the server in response to the password request, wherein the password of the system account is randomly generated by the server after receiving the password request, or is randomly generated by the server after the preset type communication connection is successfully established, and is stored in the preset storage space.
Preferably, the establishing a preset type communication connection with a server after the embedded device is started and runs the preset type operating system includes:
and when the communication connection fails, re-requesting to establish the preset type communication connection with the server every preset time.
Preferably, the method further comprises:
regularly sending a password updating request to the server, and receiving a password of a new system account returned by the server in response to the password updating request;
and setting the password of the new system account into the system account of the preset type operating system, so that the user can log in the system account based on the password of the new system account.
Preferably, the obtaining, from the server, a password of a randomly generated system account based on the established preset type communication connection includes:
acquiring a randomly generated key from the server based on the established preset type communication connection;
and calculating the password of the system account corresponding to the secret key.
In addition, to achieve the above object, the present invention further provides a computer-readable storage medium storing a login password protection program, which is executable by at least one processor to cause the at least one processor to execute the login password protection method.
After the embedded equipment is started and runs the preset type operating system, the embedded equipment establishes a preset type communication connection with a server; based on the established preset type communication connection, acquiring a password of a randomly generated system account from the server; and updating the password of the system account of the embedded device by using the acquired password of the system account. Compared with the prior art, the method and the device have the advantages that the server can regenerate a new random password every time the embedded device is started, so that the embedded device can obtain a new password every time the embedded device is powered on and started. Therefore, the invention effectively improves the system security of the embedded product using the Linux operating system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an alternative application environment according to various embodiments of the present invention;
fig. 2 is a schematic diagram of a first embodiment of an embedded device according to the present invention;
FIG. 3 is a block diagram of a first embodiment of the login password protection procedure of FIG. 2;
FIG. 4 is a block diagram of a second embodiment of the login password protection procedure of FIG. 2;
FIG. 5 is a flowchart of a first embodiment of a login password protection method according to the present invention;
fig. 6 is a flowchart of a login password protection method according to a second embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic diagram of an optional application environment according to various embodiments of the present invention.
In the embodiment, the invention can be applied to application environments including, but not limited to, the embedded device 1 and the server 2. The embedded device 1 is connected with the server 2 through network communication. The network may be a wireless or wired network such as an Intranet (Intranet), the Internet (Internet), a Global System of Mobile communication (GSM), Wideband Code Division Multiple Access (WCDMA), 4G network, 5G network, Bluetooth (Bluetooth), Wi-Fi, and the like. Next, based on the above application environment, various embodiments of the present invention are proposed.
Referring to fig. 2, fig. 2 is a schematic diagram of an embedded device according to an embodiment of the present invention.
In the present embodiment, the login password protection program 10 is installed and run in the embedded device 1. The embedded device 1 may include, but is not limited to, a memory 11, a processor 12. Fig. 2 only shows the embedded device 1 with components 11-12, but it is to be understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead.
The memory 11 may in some embodiments be an internal storage unit of the embedded device 1, such as a hard disk or a memory of the embedded device 1. The memory 11 may also be an external storage device of the embedded device 1 in other embodiments, such as a plug-in hard disk provided on the embedded device 1, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and so on. Further, the memory 11 may also include both an internal storage unit and an external storage device of the embedded device 1. The memory 11 is used for storing application software installed in the embedded device 1 and various data, such as program codes of the login password protection program 10. The memory 11 may also be used to temporarily store data that has been output or is to be output.
The processor 12 may be a Central Processing Unit (CPU), a microprocessor or other data Processing chip in some embodiments, and is used for executing program codes stored in the memory 11 or Processing data, such as executing the login password protection program 10.
Referring to fig. 3, fig. 3 is a block diagram of a login password protection procedure according to a first embodiment of the present invention. In this embodiment, the login password protection program 10 may be divided into one or more modules, and the one or more modules are stored in the memory 11 and executed by one or more processors (in this embodiment, the processor 12) to complete the present invention. For example, in fig. 3, the login password protection program 10 may be divided into a communication connection module 101, an acquisition module 102, and a setting module 103. The module referred to in the present invention refers to a series of computer program instruction segments capable of performing specific functions, and is more suitable than a program for describing the execution process of the login password protection program 10 in the embedded device, wherein:
the communication connection module 101 is configured to establish a preset type communication connection with the server after the embedded device starts and runs a preset type operating system. For example, the preset type communication connection may be a long connection based on Transport Layer Security (TLS).
When the communication connection fails, the communication connection module 101 re-requests the establishment of the preset type communication connection with the server every preset time period (for example, 30 seconds).
The obtaining module 102 obtains a randomly generated password of the system account from the server based on the established preset type communication connection. The password of the system account is a ROOT password which is a character string randomly generated by the server, and the server can randomly generate passwords of different system accounts aiming at different embedded devices.
The manner for the obtaining module 102 to obtain the randomly generated password of the system account from the server includes the following scheme:
the first scheme is as follows:
the server randomly generates a password of the system account and stores the password in a preset storage space (e.g., a memory of the server), and the obtaining module 102 searches for and obtains the password of the system account from the preset storage space of the server.
Scheme II:
the obtaining module 102 sends a password request to the server, and after receiving the password request, the server responds to the password request and randomly generates a password of the system account corresponding to the password request.
The third scheme is as follows:
the obtaining module 102 sends a password request to the server, the server randomly generates a password of the system account and stores the randomly generated password of the system account in a preset storage space, and after receiving the password request, the randomly generated password of the system account is used as the password of the system account corresponding to the password request.
And the scheme is as follows: the obtaining module 102 obtains a randomly generated secret key from the server based on the established preset type communication connection, and calculates a password of a system account corresponding to the secret key.
The embedded device further includes an encryption unit (e.g., an encryption lock), and after the key is obtained, the encryption unit needs to be driven to calculate a password of the system account corresponding to the key.
And the setting module 103 is configured to update the password of the system account of the embedded device by using the acquired password of the system account.
Referring to fig. 4, fig. 4 is a block diagram of a login password protection program 10 according to a second embodiment of the present invention.
On the basis of the first embodiment, the login password protection program 10 further includes an update module 104.
And the updating module 104 is configured to send a password updating request to the server at regular time (e.g., every 2 hours), receive a password of a new system account returned by the server in response to the password updating request, and set the password of the new system account into the system accounts of the preset type of operating systems, so that the user logs in the system account based on the password of the new system account.
The embodiment updates the password of the system account at regular time, so the system security can be further improved.
Referring to fig. 5, fig. 5 is a flowchart illustrating a login password protection method according to a first embodiment of the present invention.
In this embodiment, the method includes:
and S10, establishing the preset type communication connection with the server after the embedded device is started and runs the preset type operating system. For example, the preset type communication connection may be a long TLS-based connection.
When the communication connection fails, the embedded device reestablishes the preset type communication connection with the server at preset time intervals (for example, 30 seconds).
And S20, the embedded device acquires the randomly generated password of the system account from the server based on the established preset type communication connection.
The password of the system account is a ROOT password which is a character string randomly generated by the server, and the server can randomly generate passwords of different system accounts aiming at different embedded devices.
The mode of the embedded device for acquiring the randomly generated password of the system account from the server comprises the following scheme:
the first scheme is as follows:
the server randomly generates and stores the password of the system account in a preset storage space (for example, a memory of the server), and the embedded device searches and acquires the password of the system account from the preset storage space of the server.
Scheme II:
the embedded device sends a password request to the server, and the server responds to the password request after receiving the password request and randomly generates a password of a system account corresponding to the password request.
The third scheme is as follows:
the embedded device sends a password request to the server, the server randomly generates a password of the system account and stores the randomly generated password of the system account in a preset storage space after the preset type communication connection is successfully established, and the randomly generated password of the system account is used as the password of the system account corresponding to the password request after the password request is received.
And the scheme is as follows:
and based on the established preset type communication connection, obtaining a randomly generated secret key from the server, and calculating the password of the system account corresponding to the secret key. The key is a string of characters randomly generated by the server.
The embedded device further includes an encryption unit (e.g., an encryption lock), and after the key is obtained, the encryption unit needs to be driven to calculate a password of the system account corresponding to the key.
And S30, updating the password of the system account of the embedded device by using the acquired password of the system account.
Referring to fig. 6, fig. 6 is a flowchart illustrating a login password protection method according to a second embodiment of the present invention.
On the basis of the first embodiment, the method further comprises:
s40, the embedded device sends a password update request to the server at regular time (e.g. every 2 hours), and receives the password of the new system account returned by the server in response to the password update request.
S50, the embedded device sets the password of the new system account into the system account of the preset type operating system, so that the user can log in the system account based on the password of the new system account.
The embodiment updates the password of the system account at regular time, and improves the safety of the system.
Further, the present invention also provides a computer-readable storage medium storing a login password protection program, which is executable by at least one processor to cause the at least one processor to execute the login password protection method in any of the embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An embedded device, the embedded device comprising a memory and a processor, wherein the memory stores a preset type operating system and a login password protection program, the preset type operating system and the login password protection program are executable on the processor, and when the login password protection program is executed by the processor, the following method is implemented:
after the embedded equipment is started and runs the preset type operating system, establishing a preset type communication connection with a server;
based on the established preset type communication connection, acquiring a randomly generated password of a system account from the server, wherein the password of the system account is a ROOT password, and the ROOT password is a character string randomly generated for the embedded device;
updating the password of the system account of the embedded equipment by using the acquired password of the system account;
the obtaining, from the server, a password of a randomly generated system account based on the established preset type communication connection includes:
acquiring a randomly generated key from the server based on the established preset type communication connection;
and calculating the password of the system account corresponding to the secret key.
2. The embedded device of claim 1, wherein the obtaining a randomly generated password for the system account from the server based on the established preset-type communication connection comprises:
searching and acquiring the password of the system account from a preset storage space of the server, wherein the password of the system account is randomly generated and stored in the preset storage space after the server successfully establishes the preset type communication connection; alternatively, the first and second electrodes may be,
and sending a password request to the server, receiving the password of the system account returned by the server in response to the password request, wherein the password of the system account is randomly generated by the server after receiving the password request, or is randomly generated by the server after the preset type communication connection is successfully established, and is stored in the preset storage space.
3. The embedded device of claim 1, wherein establishing a predetermined type of communication connection with a server after the embedded device boots and runs the predetermined type of operating system comprises:
and when the communication connection fails, re-requesting to establish the preset type communication connection with the server every preset time.
4. The embedded device of claim 1, wherein the processor executes the login password protection program, further implementing the method of:
regularly sending a password updating request to the server, and receiving a password of a new system account returned by the server in response to the password updating request;
and setting the password of the new system account into the system account of the preset type operating system, so that the user can log in the system account based on the password of the new system account.
5. A login password protection method is suitable for an embedded device, and is characterized by comprising the following steps:
after the embedded equipment is started and runs a preset type operating system, establishing a preset type communication connection with a server;
based on the established preset type communication connection, acquiring a randomly generated password of a system account from the server, wherein the password of the system account is a ROOT password, and the ROOT password is a character string randomly generated for the embedded device;
updating the password of the system account of the embedded equipment by using the acquired password of the system account;
the obtaining, from the server, a password of a randomly generated system account based on the established preset type communication connection includes:
acquiring a randomly generated key from the server based on the established preset type communication connection;
and calculating the password of the system account corresponding to the secret key.
6. The login password protection method of claim 5, wherein the obtaining a password of a randomly generated system account from the server based on the established preset type communication connection comprises:
searching and acquiring the password of the system account from a preset storage space of the server, wherein the password of the system account is randomly generated and stored in the preset storage space after the server successfully establishes the preset type communication connection; alternatively, the first and second electrodes may be,
and sending a password request to the server, receiving the password of the system account returned by the server in response to the password request, wherein the password of the system account is randomly generated by the server after receiving the password request, or is randomly generated by the server after the preset type communication connection is successfully established, and is stored in the preset storage space.
7. The login password protection method of claim 5, wherein the establishing a communication connection of a preset type with a server after the embedded device starts up and runs the preset type operating system comprises:
and when the communication connection fails, re-requesting to establish the preset type communication connection with the server every preset time.
8. The login password protection method of claim 5, further comprising:
regularly sending a password updating request to the server, and receiving a password of a new system account returned by the server in response to the password updating request;
and setting the password of the new system account into the system account of the preset type operating system, so that the user can log in the system account based on the password of the new system account.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a program executable by at least one processor to cause the at least one processor to perform the login password protection method according to any one of claims 5 to 8.
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| CN102402655A (en) * | 2010-09-17 | 2012-04-04 | 上海中标软件有限公司 | Dynamic password setting method for virtual machine |
| CN105337967A (en) * | 2015-10-16 | 2016-02-17 | 晶赞广告（上海）有限公司 | Method and system for achieving target server logging by user and central server |
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