CN105282175B - Login method and login system based on safety shell protocol of increasing income - Google Patents
Login method and login system based on safety shell protocol of increasing income Download PDFInfo
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- CN105282175B CN105282175B CN201510778846.2A CN201510778846A CN105282175B CN 105282175 B CN105282175 B CN 105282175B CN 201510778846 A CN201510778846 A CN 201510778846A CN 105282175 B CN105282175 B CN 105282175B
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- user information
- login
- increasing income
- safety shell
- shell protocol
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- 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
-
- 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
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/166—Implementing security features at a particular protocol layer at the transport layer
-
- 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
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/168—Implementing security features at a particular protocol layer above the transport layer
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The present invention provides a kind of login method and login system based on safety shell protocol of increasing income.The login method based on safety shell protocol of increasing income comprises the following steps：To increasing income, safety shell protocol application module sends system user information；Linux kernel module verifies the system user information；After linux kernel is verified the system user information, performs re-direction applications module and logged in realizing.The login method and login system of the present invention, is redirected twice by re-direction applications module, and the login of SSH user is realized on the basis of it need not change SSH source codes of increasing income, therefore, greatly reduces subsequent upgrade or the cost of operation maintenance.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of login method based on safety shell protocol of increasing income and
Login system.
Background technology
Safety shell protocol (Secure Shell, SSH) is relatively reliable at present, aims at telnet session and other networks
Service provides the agreement of security.The information leakage problem in remote management procedures not only can be effectively prevented using SSH agreements,
The speed of transmission with the data of compression transmission, can be accelerated.SSH has many functions, it can not only replace Telnet, but also can be
FTP, PoP, even PPP provides " passage " of a safety.
The network equipment systems such as interchanger have the Command Line Interface (command-line oneself customized
Interface, CLI) configuration interface.What is entered when user is logged in by SSH is the CLI configurations circle of embedded device system customization
Face rather than the shell interfaces of Linux system.
It is domestic at present, in addition to several are researched and developed the stronger company of strength and understand oneself realization SSH agreement, most network
Equipment research and development manufacturer is all based on SSH softwares (such as OpenSSH) of increasing income, and the source of adaptation modification open source software is made for its own system
Code realizes SSH user authentication login functions.
However, if company oneself realizes the exploitation of SSH agreements, without using open source software, this is researched and developed successfully height, is suitable only for
Minority has the company of certain research and development strength.And numerous companies are done using SSH softwares (such as OpenSSH) of increasing income for its own system
Adaptation changes the source code of open source software to realize SSH user authentication login functions.But at present because to change open source software source
Code is, it is necessary to learn the source code of open source software, subsequent upgrade open source software version or replacement open source software, system maintenance
Personnel's is of high cost.
Therefore, how people in the art is become the login feature not realizing SSH user on the basis of increasing cost
One of member's urgent problem to be solved.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide one kind based on the Secure Shell association that increases income
The login method and login system of view, for solving the problems, such as to realize that SSH user's login feature cost is higher in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of login based on safety shell protocol of increasing income
Method, the login method based on safety shell protocol of increasing income comprise the following steps：To safety shell protocol application mould of increasing income
Block sends system user information；Linux kernel module verifies the system user information；When linux kernel is to described
After system user information is verified, performs re-direction applications module and logged in realizing.
In one embodiment of the invention, it is described execution re-direction applications module to realize login the step of include：Institute
It states to establish between re-direction applications module and linux kernel and redirects SSH connections；In the re-direction applications module and prefabricated life
It makes and establishes TCP connection between row interface and logged in realizing.
In one embodiment of the invention, length is established between the re-direction applications module and prefabricated Command Line Interface
TCP connection.
In one embodiment of the invention, the login method based on safety shell protocol of increasing income further includes：It is logging in
After linux system, the add-on system user information into linux kernel, the system user information includes：Username and password.
It is described to include into linux kernel the step of add-on system user information in one embodiment of the invention：
The system user information is stored in by linux kernel/etc/shadow and/etc/passwd files in.
In one embodiment of the invention, the system user information is stored in/etc/passwd files by linux kernel
When in folder, the execution program after specified system user information is verified in described/etc/passwd files is described heavy
Orient application module.
The present invention provides a kind of login system based on safety shell protocol of increasing income, described based on safety shell protocol of increasing income
Login system include：It increases income safety shell protocol application module, for reception system user information；Linux kernel, for pair
The system user information is verified；Re-direction applications module verifies the system user information for working as linux system
By rear, perform the re-direction applications module and logged in realizing.
In one embodiment of the invention, the re-direction applications module includes：First redirects unit, for described
It is established between re-direction applications module and linux system kernel and redirects SSH connections；Second redirects unit, for described
TCP connection is established between re-direction applications module and prefabricated Command Line Interface and is logged in realizing.
In one embodiment of the invention, it is described second redirect unit the re-direction applications module with it is prefabricated
Long TCP connection is established between Command Line Interface.
In one embodiment of the invention, the login system based on safety shell protocol of increasing income further includes：User believes
Add module is ceased, for after linux system is logged in, the add-on system user information into linux kernel, the system user to be believed
Breath includes：Username and password.
As described above, the login method and login system based on safety shell protocol of increasing income of the present invention, has with following
Beneficial effect：
The login method based on safety shell protocol of increasing income of the present invention verifies system user information in linux kernel
It by rear, realized and logged in by re-direction applications module, the source code of open source software need not be changed, therefore, after greatly reducing
Grade of continuing rising or the cost of system maintenance.
Description of the drawings
Fig. 1 is shown as the signal of the flow in an embodiment the present invention is based on the login method for safety shell protocol of increasing income
Figure.
Fig. 2 is shown as the structural representation in an embodiment the present invention is based on the login system for safety shell protocol of increasing income
Figure.
Component label instructions
2 login systems based on safety shell protocol of increasing income
21 increase income safety shell protocol application module
22 linux kernels
23 re-direction applications modules
S11~S13 steps
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the case where there is no conflict, following embodiment and implementation
Feature in example can be mutually combined.
It should be noted that the diagram provided in following embodiment only illustrates the basic structure of the present invention in a schematic way
Think, then only the display component related with the present invention rather than component count, shape and size during according to actual implementation in schema
It draws, kenel, quantity and the ratio of each component can be a kind of random change during actual implementation, and its assembly layout kenel
It is likely more complexity.
As described in the background art, when being logged at present by SSH or oneself develops SSH agreements or profit
Realized with SSH softwares are increased income, but no matter which kind of mode, the cost of exploitation is all very high, and the scope of application is very limited.
Referring to Fig. 1, the present invention provides a kind of login method based on safety shell protocol of increasing income, it is described based on peace of increasing income
The login method of full shell protocol comprises the following steps：
S11, to increasing income, safety shell protocol application module sends system user information；
S12, Linux kernel module verify the system user information；
S13 after linux kernel is verified the system user information, performs re-direction applications module to realize
It logs in.
Specifically, user establishes SSH with OpenSSH by ssh client software (such as SecureCRT) request and is connected,
During this SSH username and passwords are sent to OpenSSH.
OpenSSH whether there is to linux inquiries user name and whether the password of user name is correct, if incorrect, refuses
The connection request of exhausted user, is otherwise further processed.Specifically, Linux system kernel (linux kernel) is to user
Name and password are verified.
OpenSSH is learning user authentication by rear, and performing RdirectIO application programs, (application program is pre- exploitation
Re-direction applications module).OpenSSH is redirected when performing RdirectIO, so as to fulfill the login of SSH user.
RdirectIO is that realize application program is needed in the present embodiment, and function is with reference to description below.
In the present embodiment, it is described execution re-direction applications module to realize login the step of include：In the redirection
It is established between application module and linux kernel and redirects SSH connections；In the re-direction applications module and prefabricated Command Line Interface
Between establish TCP connection with realize log in.Specifically, established between the re-direction applications module and prefabricated Command Line Interface
Long TCP connection.
In practical applications, OpenSSH creates a pipeline (pipe) when performing RdirectIO.Pass through this pipe
Road, the standard IO of RdirectIO can be redirected to ssh connections.Meanwhile RdirectIO and system customization CLI establishes a tcp
The standard IO of RdirectIO, is redirected to this tcp connection by connection.
That is, the function of RdirectIO is that the input of system customization CLI is redirected to RdirectIO standards is defeated
Go out；Equally, the standard input of RdirectIO is redirected to the output of system customization CLI, it thus can be by determining in system
TCP long connections are established between CLI and RdirectIO processed to realize IO redirection functions here.
Specifically, the realization code of the RdirectIO is：
(Input＆Output) processing is redirected by above-mentioned two steps IO, after SSH user is by SSH certification login systems,
The data inputted on ssh client (such as SecureCRT) are by being redirected to twice up to system CLI interfaces；Conversely, system is determined
The data of CLI inputs processed, which also pass through, to be redirected to twice up to ssh client.
Although the data that actually user inputs in SSH connections are to first pass through OpenSSH decryption, the data warp after decryption
System customization CLI is just reached after redirecting twice.But using user perceptually in system, user is to be directly entered to be
System customization CLI interfaces.In system user perceptually, user is to be directly logged onto system customization CLI interfaces.
In order to realize the verification of system user information, in the present embodiment, the stepping on based on safety shell protocol of increasing income
Recording method further includes：After linux system is logged in, the add-on system user information into linux kernel, the system user information
Including：Username and password.
Specifically, it is described to include into linux kernel the step of add-on system user information：Linux kernel is by the system
System user information be stored in/etc/shadow and/etc/passwd files in.Meanwhile linux kernel is by the system user
Information is stored in/etc/passwd files in when, system user information verification is specified in described/etc/passwd files
Execution program after is the re-direction applications module.
In practical applications, increase income OpenSSH user authentication be to linux kernel (linux kernel) verify user
The correctness of name and its password.User is by serial ports login system, when adding SSH user to system simultaneously to linux
Kernel adds the system user of same subscriber name and password.System user and its password are stored in "/etc/ by linux system
In shadow " and "/etc/passwd " two files.
For example, user adds the user of entitled admin for interchanger, switch system is adding the user to itself
When in configuration file, increase the system user of an entitled admin to linux kernel.System user increase successfully after "/
A record is respectively added in etc/shadow " and "/etc/passwd " two files.Add toward "/etc/passwd " file
When adding the record of admin user, the last one ":" content filled in below is being OpenSSH in definite user name and password all just
The application program to be performed after really, what is filled in here is RdirectIO application programs.
Specifically, the realization code of shadow files is：
#cat/etc/shadow
Root:5Gg.mRfhg Iz4g:10925:0:99999:7:::
Sshd:kVsqISda3pms.:0:0:99999:7:::
Admin:IjU5ugwlS2HnY:15357:0:99999:7:::
#
The realization code of passwd files is：
#cat/etc/passwd
Root:x:0:0:root:/root/bin/sh
Sshd:x:1000:1000:sshd privsep:/var/empty:/bin/ssh
Admin:x:1001:1001:Linux User,,,:/home:/mnt/app/RdirectIO
#
OpenSSH can create a pipe when performing RdirectIO application programs between OpenSSH and RdirectIO
Road (pipe).The data that user inputs on ssh client (such as SecureCRT) are managed after OpenSSH is decrypted by this
Road directly reaches RdirectIO.In turn, the standard output of RdirectIO is defeated after OpenSSH is encrypted also by this pipeline
Go out to ssh client.Here processing is completed by OpenSSH open source softwares, need not change OpenSSH source codes.
The login method based on safety shell protocol of increasing income of the present embodiment is completed by prefabricated re-direction applications module
It redirects twice, so as to fulfill the login of SSH user, and the SSH source codes that need not increase income, therefore, greatly reduce rear of continuing rising
Grade or the cost of operation maintenance.
The present invention provides a kind of login system based on safety shell protocol of increasing income, described based on safety of increasing income with reference to figure 2
The login system of shell protocol includes：
It increases income safety shell protocol application module 21, for reception system user information；
Linux kernel 22, for being verified to the system user information；
Re-direction applications module 23, for working as after linux system is verified the system user information, described in execution
Re-direction applications module is logged in realizing.
In the present embodiment, the re-direction applications module 23 includes：First, which redirects unit and second, redirects unit (figure
Not shown in), described first, which redirects unit, is used to establish weight between the re-direction applications module and linux system kernel
Orient SSH connections；The second redirection unit is used to build between the re-direction applications module and prefabricated Command Line Interface
Vertical TCP connection is logged in realizing.Specifically, described second unit is redirected in the re-direction applications module and prefabricated life
It makes and establishes long TCP connection between row interface.
In the present embodiment, the login system based on safety shell protocol of increasing income further includes：User information add module,
For after linux system is logged in, the add-on system user information into linux kernel, the system user information to include：User
Name and password.
The specific implementation process of the login system based on safety shell protocol of increasing income of the present embodiment can refer to previously with regard to
The detailed description of login method based on safety shell protocol of increasing income, details are not described herein.
In conclusion the login method and login system based on safety shell protocol of increasing income of the present invention, using prefabricated
Redirection module realization redirects twice, so as to fulfill the login of SSH user, and need not change SSH source codes of increasing income, so as to
Greatly reduce the cost of subsequent upgrading and operation maintenance.So the present invention effectively overcome it is of the prior art it is a variety of lack
It puts and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of login method based on safety shell protocol of increasing income, which is characterized in that described based on safety shell protocol of increasing income
Login method comprise the following steps：
To increasing income, safety shell protocol application module sends system user information；
Linux kernel module verifies the system user information；
After linux kernel is verified the system user information, performs re-direction applications module and logged in realizing；
The step of execution re-direction applications module is to realize login includes：
It is established between the re-direction applications module and linux kernel and redirects SSH connections；
TCP connection, which is established, between the re-direction applications module and prefabricated Command Line Interface is logged in realizing.
2. the login method according to claim 1 based on safety shell protocol of increasing income, it is characterised in that：It is reset described
Long TCP connection is established between application module and prefabricated Command Line Interface.
3. the login method according to claim 1 based on safety shell protocol of increasing income, which is characterized in that further include：
After logging in linux system, the add-on system user information into linux kernel, the system user information includes：User name and close
Code.
4. the login method according to claim 3 based on safety shell protocol of increasing income, which is characterized in that it is described to
Include in linux kernel the step of add-on system user information：The system user information is stored in/etc/ by linux kernel
In shadow and/etc/passwd files.
5. the login method according to claim 4 based on safety shell protocol of increasing income, which is characterized in that linux kernel
The system user information is stored in/etc/passwd files in when, system is specified in described/etc/passwd files
Execution program after system user information is verified is the re-direction applications module.
6. a kind of login system based on safety shell protocol of increasing income, which is characterized in that described based on safety shell protocol of increasing income
Login system include：
It increases income safety shell protocol application module, for reception system user information；
Linux kernel, for being verified to the system user information；
Re-direction applications module for working as after linux system is verified the system user information, performs the redirection
Application module is logged in realizing；
The re-direction applications module includes：
First redirects unit, and SSH companies are redirected for being established between the re-direction applications module and linux system kernel
It connects；
Second redirect unit, for established between the re-direction applications module and prefabricated Command Line Interface TCP connection with
It realizes and logs in.
7. the login system according to claim 6 based on safety shell protocol of increasing income, which is characterized in that second weight
Directed element establishes long TCP connection between the re-direction applications module and prefabricated Command Line Interface.
8. the login system according to claim 6 based on safety shell protocol of increasing income, which is characterized in that further include：With
Family information add module, for after linux system is logged in, the add-on system user information into linux kernel, the system to be used
Family information includes：Username and password.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778846.2A CN105282175B (en) | 2015-11-13 | 2015-11-13 | Login method and login system based on safety shell protocol of increasing income |
| PCT/CN2016/101392 WO2017080334A1 (en) | 2015-11-13 | 2016-09-30 | Login method and login system based on open-source secure shell protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778846.2A CN105282175B (en) | 2015-11-13 | 2015-11-13 | Login method and login system based on safety shell protocol of increasing income |
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| Publication Number | Publication Date |
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| CN105282175A CN105282175A (en) | 2016-01-27 |
| CN105282175B true CN105282175B (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778846.2A Active CN105282175B (en) | 2015-11-13 | 2015-11-13 | Login method and login system based on safety shell protocol of increasing income |
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| Country | Link |
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| CN (1) | CN105282175B (en) |
| WO (1) | WO2017080334A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105282175B (en) * | 2015-11-13 | 2018-05-18 | 上海斐讯数据通信技术有限公司 | Login method and login system based on safety shell protocol of increasing income |
| CN106060066A (en) * | 2016-06-28 | 2016-10-26 | 积成电子股份有限公司 | Embedded linux-based method for realizing terminal maintenance and information release |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370009A (en) * | 2008-03-12 | 2009-02-18 | 武汉理工大学 | Construction method for virtual network block frame based on Linux kernel network subsystem |
| CN103685242A (en) * | 2013-11-27 | 2014-03-26 | 国家电网公司 | Electric power operation and maintenance security defending system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6606708B1 (en) * | 1997-09-26 | 2003-08-12 | Worldcom, Inc. | Secure server architecture for Web based data management |
| CN102857520B (en) * | 2012-10-11 | 2015-09-30 | 德讯科技股份有限公司 | Telnet protocol security access system and method for character terminal |
| CN105282175B (en) * | 2015-11-13 | 2018-05-18 | 上海斐讯数据通信技术有限公司 | Login method and login system based on safety shell protocol of increasing income |
-
2015
- 2015-11-13 CN CN201510778846.2A patent/CN105282175B/en active Active
-
2016
- 2016-09-30 WO PCT/CN2016/101392 patent/WO2017080334A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370009A (en) * | 2008-03-12 | 2009-02-18 | 武汉理工大学 | Construction method for virtual network block frame based on Linux kernel network subsystem |
| CN103685242A (en) * | 2013-11-27 | 2014-03-26 | 国家电网公司 | Electric power operation and maintenance security defending system |
Non-Patent Citations (1)
| Title |
|---|
| 《基于SSH与代理的数据安全传输机制的研究》;尹刚;《电子科学》;20090415;正文第32页和第43页 * |
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| Publication number | Publication date |
|---|---|
| CN105282175A (en) | 2016-01-27 |
| WO2017080334A1 (en) | 2017-05-18 |
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