CN101146305A - Configuration method of secure policy - Google Patents
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- CN101146305A CN101146305A CNA2006101541414A CN200610154141A CN101146305A CN 101146305 A CN101146305 A CN 101146305A CN A2006101541414 A CNA2006101541414 A CN A2006101541414A CN 200610154141 A CN200610154141 A CN 200610154141A CN 101146305 A CN101146305 A CN 101146305A
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Abstract
The invention discloses a configuration method for a safety strategy and aims to solves the problem that the prior art fails to realize the configuration of allaround safety integrity level. The inventive configuration method for the safety strategy comprises the following steps: (1) the system sets up a safety strategy table containing safety level, scene and algorithm protocol in each safety element; (2) the system determines the safety level and current scene and extracts a required algorithm protocol from the safety strategy table; and (3) the system applies the obtained algorithm protocol to the safety service to complete the configuration of safety strategy. As a result, the invention sets up the safety strategy table for each safety element, determines the required algorithm protocol based on the determined safety level and current scene and extracts the algorithm protocol from the safety strategy table. The invention can realizes the configuration of the allaround safety integrity level according to the actual situation that the user utilizes the mobile network.
Description
Technical field
The present invention relates to mobile communication and information security field, particularly the collocation method of security strategy.
Background technology
Along with the increase of mobile network's transmittability, be based upon the business variation day by day on the multimedia transmission basis.Different business is for different occasions, and different user has different demands for security, adopts single security mechanism can't adapt to multiple services demand.Therefore, analyze, mechanism need be provided technically, allow concrete business can select the safety guarantee of suitable grade from the angle of business demand.On the other hand, among the mobile network, the mobile security strategy has shielded the ins and outs of bottom and complicated safety management operation to the user, makes the user can enjoy the security service that is simple and easy to usefulness.By mobile security policy control server, operator can provide as a business secure communication to the user, thereby opens up new value-added service field.The user is high-grade security service defrayment, uses or the payment small charge low-grade security service is free.So, operator can either be converted into the investment of foundation for security and facility the business of profit, has satisfied the differentiated demand of user to safety again.The appearance of customizable, personalized mobile security service helps the popularization of secure communication, also might therefore expedite the emergence of out a huge industry.
The mobile subscriber's is universal day by day, and portable terminal becomes popular product.Yet most of user security knowledge is limited, also is difficult at portable terminal security strategy be carried out the configuration of specialty.In this sense, need implement simply, intuitively the level of security choice mechanism according to the different safety requirements of different information.The user selects suitable level of security to communicate according to communicating requirement flexibly.This just requires network can support the security service of different brackets technically.
Aspect safe class is provided with:
Patent WO03081932 has proposed to select according to user's geographical position the method for safe class based on mobile communication environment.Being divided into high and low two-stage safe class with safe class is example:
High safety grade safeguard protection degree is higher, needs the user to import identity or secure data more frequently.Lower security hierarchically secure degree of protection is lower, and the user only need import identity or secure data once in a while, perhaps need not import any authentication information.
Patent US6363150 has proposed in the IP phone service in conversation beginning and conversation the method to safe class control.Calling party can be selected a kind of privacy of conversing guaranteed from a plurality of safe classes, also can in conversation, change the safe class of current talking according to actual conditions, charge system can be charged accordingly according to the safe class that the user selects, and rate increases along with the lifting of safe class.The user can the real time altering safe class.When the user in conversation, can import suitable DTMF (Dual Tone Multi Frequency) sequence, change to needed safe class, and chargeed accordingly.
Patent EP1183818 has then proposed need provide corresponding authentication mechanism when safe class changes from high to low.System's user mode indicating device indicates the level of security that is performed.Level of security can be upgraded to allow more senior easier being performed of safety.Yet,, adopt the fail safe that confirms this change based on the authentication method of authentication codes in order to change to the safety of even lower level from more senior safety.
The proposition content corresponding in a certain respect that above-mentioned patent just is provided with from safe class.As: based on the geographical position, based on encryption technology, based on the dynamic change of safe class.Yet,, need to propose comprehensive safe class method to set up along with mobile network's development.
Summary of the invention
For defective and the deficiency that overcomes prior art, the object of the present invention is to provide a kind of collocation method of security strategy, can use mobile network's actual conditions according to the user, realize the configuration of comprehensive security grade.
In order to achieve the above object, the collocation method of a kind of security strategy of the present invention is characterized in that, may further comprise the steps:
(1) system sets up the security strategy table that comprises safe class, scene and algorithm protocol for each security element;
(2) system determines safe class and current scene, and obtains the algorithm protocol that all need in the security strategy table;
(3) system is applied to the algorithm protocol of obtaining in the security service, finishes the configuration of security strategy.
Preferably, described step (1) is specially:
(11) to set up the row or column of input layer be that safe class, column or row are scene in system, and output layer is the security strategy head table of algorithm protocol inlet;
(12) system's row or column of setting up input layer for each security element is that safe class, column or row are scene, and output layer is the security strategy table of algorithm protocol.
Preferably, described step (2) is specially:
(21) system determines safe class and current scene, and it is inquired about the inlet that obtains algorithm protocol in security strategy head table as initial conditions;
(22) system obtains the algorithm protocol of all needs in the security strategy table of each security element according to the inlet of algorithm protocol.
Preferably, described step (21) is specially:
(211) system determines safe class and current scene;
(212) row or column of safe class correspondence is selected by system in security strategy head table according to the safe class of determining;
(213) column or row of current scene correspondence are selected by system in security strategy head table according to the current scene of determining;
(214) system determines the cell at the inlet place of algorithm protocol according to the column or row of the row or column of the safe class correspondence of selecting and current scene correspondence.
Preferably, described step (22) is specially:
(221) system is according to the link in the inlet place cell of determining in security strategy head table, and obtains the algorithm protocol that all need successively in the cell of the security strategy table correspondence of each security element.
Preferably, the method for described definite safe class and current scene is:
Under the situation of static security grade, determine according to the type of service compulsory safe class of using of institute or by user's corresponding relation of realizing safe class, scene and business of contracting; Under the situation of dynamic security grade, communicate preceding the selection by the user and determine; And determine current scene according to the service security demand.
Preferably, described security element comprises: access control, checking, data confidentiality, communications security, data integrity, resisting denying, utilizability, privacy.
After adopting above-mentioned method, owing to set up the security strategy table according to each security element, and utilize definite safe class and current scene to determine the algorithm protocol that needs, in the security strategy table, obtain this algorithm protocol, can use mobile network's actual conditions according to the user, realize the configuration of comprehensive security grade.
Description of drawings
Fig. 1 is the schematic diagram of collection algorithm protocol procedures of the present invention;
When Fig. 2 changes for safe class under the Same Scene of the present invention, collection algorithm agreement schematic diagram;
When Fig. 3 changes for scene under the same safe class of the present invention, collection algorithm agreement schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
The division methods of security strategy of the present invention is finished by the security strategy table.The X805 standard to describe of ITU-T the eight kinds of safety measures that can resist all main security threats, be called security element.Comprise access control, checking, data confidentiality, communications security, data integrity, resisting denying, utilizability, privacy.According to the number of security element, each security element is set up a security strategy table.And before the security strategy table of all security elements, set up a security strategy head table.
Security strategy head table of the present invention and security strategy table all are made up of two-layer, and wherein, security strategy head table comprises: (1) input layer comprises safe class and scene.(2) output layer, the output of security strategy head table is the inlet of algorithm protocol, and is as shown in table 1 below.One row of form are safe classes, and the delegation of form is a scene.Each cell (Grid) is deposited under the particular safety grade, and the algorithm protocol in the special scenes, this algorithm protocol are used to satisfy the security service that this security element provides.Each security element is set up a security strategy table provide convenience for management.Upgrade or when revising algorithm protocol, need not make amendment, only need make amendment the security strategy table of the security element that relates to the algorithm of all security elements.
| High | Medium | Low | Extending | |
| Scene 1 | Inlet 1.1 | Inlet 1.2 | Inlet 1.3 | Inlet 1.4 |
| Scene 2 | …… | …… | …… | …… |
| …… | …… | …… | …… | …… |
| Scene n | Inlet n.1 | Inlet n.2 | Inlet n.3 | Inlet n.4 |
Table 1
The security strategy table comprises: (1) safe class, and as row (OK) of security strategy table.(2) scene has defined multiple business abstract at secure context, as delegation's (row) of security strategy table.(3) inlet is stored in the units corresponding lattice of security strategy table.The inlet of collecting the security algorithm agreement is provided.Its input is chosen safe class and scene, and output is the inlet of algorithm protocol.As shown in table 2 below.
| High | Medium | Low | Extending | |
| Scene 1 | I.1.1 the ﹠ agreement is i.1.1 for algorithm | I.1.2 the ﹠ agreement is i.1.2 for algorithm | I.1.3 the ﹠ agreement is i.1.3 for algorithm | I.1.4 the ﹠ agreement is i.1.4 for algorithm |
| Scene 2 | …… | …… | …… | …… |
| …… | …… | …… | …… | …… |
| Scene n | Algorithm i.n.1 ﹠ agreement i.n.1 | Algorithm i.n.2 ﹠ agreement i.n.2 | Algorithm i.n.3 ﹠ agreement i.n.3 | Algorithm i.n.4 ﹠ agreement i.n.4 |
Table 2
Relation between the two-layer element of above-mentioned two tables can be expressed as: and f (x, y)=z.Wherein, independent variable x, y are safe class and scene, and dependent variable z is output, and function f is x, the y mapping relations to z.
Security strategy head table is for providing a unified entrance when the system search algorithm agreement, and it has identical row and column with the security strategy table, and the algorithm protocol that all safe classes comprised under any scene all is to begin search from security strategy head table.Safe class and scene have determined the entry position of respective algorithms agreement in security strategy head table, and it is in the single linked list of a node that the security algorithm protocol package that needs in the communication is contained in a certain cell in the security strategy head table.
In the security strategy table of the present invention:
The safe class of security strategy head table has defined the degree of protection for different demands for security.
The scene of security strategy head table is professional abstract at secure context, has identical pattern and feature at these service security services.
The inlet of security strategy head table is provided to the link of the algorithm protocol table element in the security strategy table, is stored in the cell, by chosen safe class and current scene, can output to the link of the form in the security strategy table uniquely.
In the security strategy table of the present invention corresponding to each security element:
The safe class of security strategy table has defined the degree of protection for different demands for security.
The scene of security strategy table is professional abstract at secure context, has identical pattern and feature at these service security services.
The algorithm protocol of security strategy table is concrete algorithm protocol, is stored in the cell, and it has directly determined the fail safe of communication.By chosen safe class and current scene, need the security algorithm agreement that adopts uniquely in the output communication.Simultaneously, cell also provides the link corresponding to the next security strategy table of same security element.The present invention is under concrete communication environment, and the flow process of selection algorithm agreement is:
The first step: safe class and current scene are chosen.
Second step: the row (OK) of safe class correspondence are selected according to chosen safe class by system in security strategy head table.
The 3rd step: the row (row) of current scene correspondence is selected according to chosen current scene by system in security strategy head table.
The 4th step: the cell of determining the inlet place of algorithm protocol collection by row and column.
The 5th step:, in the security strategy table of first security element that signal post needs, find corresponding cell, the algorithm protocol in the collector unit lattice according to the link in the inlet place cell of in security strategy head table, determining.
The 6th step:, in the security strategy table of the next security element that signal post needs, find the cell of identical ranks, the algorithm protocol in the collector unit lattice according to the link in the cell of the security strategy table that finds.
The 7th step: repeated for the 6th step, collect the algorithm protocol that all need.
The 8th step: use algorithm protocol in security service.
The present invention collects the security algorithm agreement under the situation of static security grade method is: the user need not select safe class before communication, system is searched for the security element table according to current scene and this professional compulsory safe class of type of service correspondence, the Matching Algorithm agreement is issued to security network element, and security network element is used algorithm protocol in specific security service.
The present invention collects the security algorithm agreement under the situation of dynamic security grade method is: the user selects a safe class to serve before communication, system is searched for the security element table according to current scene and this user-selected safe class of type of service correspondence, the Matching Algorithm agreement is issued to security network element, and security network element is used algorithm protocol in specific security service.
In the security strategy table, different safe classes provides in various degree security service for the user.Difference according to safe coefficient, the keeper can have multiple dividing mode to safe class, as shown in Figure 1, a kind of division methods is divided into safe class in security strategy head table: High, Medium, four safe classes of Low, Extending have four inlets to be respectively inlet 1.1, inlet 1.2, inlet 1.3, inlet 1.4 corresponding to scene 1; Security element i corresponding security strategy table divided rank is: High, Medium, four safe classes of Low, Extending, corresponding to scene 1 cell of four algorithm protocol is arranged, be respectively cell i.1.1, cell i.1.2, cell i.1.3, cell i.1.4; Security element j corresponding security strategy table divided rank is: High, Medium, four safe classes of Low, Extending, corresponding to scene 1 cell of four algorithm protocol is arranged, be respectively cell j.1.1, cell j.1.2, cell j.1.3, cell j.1.4; The Extending layer is self-defining according to local communication environment by service provider.Defining from high to low corresponding to High, Medium, Low safe class, all is identical for all users in the mobile network.In addition, in order to satisfy the user, also can carry out finer division to each grade to the more accurate control of safe class, as High being divided into two sublayers of Very High and High or more sublayer, yet it is meticulous to divide level, will increase the complexity that the user selects.When the user selected safe class and communicates, system may further comprise the steps according to the safe class and the professional corresponding corresponding security algorithm agreement of scene search of input:
Step 11, explicit user have been selected high safety grade High service;
Step 12, display system identify type of service and belong to scene 1, and system finds corresponding entry position according to these two inputs in security strategy head table, promptly enter the mouth 1.1;
Step 13 shows to enter the mouth 1.1 for i.1.1 the pointer of a node directly points to cell, promptly need to use algorithm i.1.1 with agreement i.1.1;
Step 14 shows that j.1.1 the pointer that i.1.1 Grid is comprised directly points to Grid again, promptly need to use algorithm j.1.1 with agreement j.1.1.Algorithm protocol among the Gridj.1.1 is the algorithm protocol of last security element, so the pointed sky among the Gird.j.1.1.
As shown in Figure 2, comprise four grade High, Medium, Low, Extending, have four inlets to be respectively inlet 1, inlet 2, inlet 3, inlet 4 corresponding to scene 1, when the user dynamically changes safe class, system needs again algorithm protocol to be collected, and may further comprise the steps:
As shown in Figure 3, comprise scene 1 n scene to scene n, the High grade is had n inlet, when the user security grade does not change and scene when changing, system's needs be collected algorithm protocol again; May further comprise the steps:
When user's scene and safe class were all moved, system needed according to the safe class and the scene that redefine security protocol and algorithm to be collected, and step is identical with the flow process of described selection algorithm agreement.
The present invention is owing to set up the security strategy table according to each security element, and utilize definite safe class and current scene to determine the algorithm protocol that needs, in the security strategy table, obtain this algorithm protocol, can use mobile network's actual conditions, realize the setting of comprehensive security grade according to the user.
Claims (7)
1. the collocation method of a security strategy is characterized in that, may further comprise the steps:
(1) system sets up the security strategy table that comprises safe class, scene and algorithm protocol for each security element;
(2) system determines safe class and current scene, and obtains the algorithm protocol that all need in the security strategy table;
(3) system is applied to the algorithm protocol of obtaining in the security service, finishes the configuration of security strategy.
2. according to the collocation method of the described security strategy of claim 1, it is characterized in that described step (1) is specially:
(11) to set up the row or column of input layer be that safe class, column or row are scene in system, and output layer is the security strategy head table of algorithm protocol inlet;
(12) system's row or column of setting up input layer for each security element is that safe class, column or row are scene, and output layer is the security strategy table of algorithm protocol.
3. according to the collocation method of the described security strategy of claim 2, it is characterized in that described step (2) is specially:
(21) system determines safe class and current scene, and it is inquired about the inlet that obtains algorithm protocol in security strategy head table as initial conditions;
(22) system obtains the algorithm protocol of all needs in the security strategy table of each security element according to the inlet of algorithm protocol.
4. according to the collocation method of the described security strategy of claim 3, it is characterized in that described step (21) is specially:
(211) system determines safe class and current scene;
(212) row or column of safe class correspondence is selected by system in security strategy head table according to the safe class of determining;
(213) column or row of current scene correspondence are selected by system in security strategy head table according to the current scene of determining;
(214) system determines the cell at the inlet place of algorithm protocol according to the column or row of the row or column of the safe class correspondence of selecting and current scene correspondence.
5. according to the collocation method of the described security strategy of claim 4, it is characterized in that described step (22) is specially:
(221) system is according to the link in the inlet place cell of determining in security strategy head table, and obtains the algorithm protocol that all need successively in the cell of the security strategy table correspondence of each security element.
6. according to the collocation method of claim 3 or 4 or 5 described security strategies, it is characterized in that the method for described definite safe class and current scene is:
Under the situation of static security grade, determine according to the type of service compulsory safe class of using of institute or by user's corresponding relation of realizing safe class, scene and business of contracting; Under the situation of dynamic security grade, communicate preceding the selection by the user and determine; And determine current scene according to the service security demand.
7. according to the collocation method of the described security strategy of claim 1, it is characterized in that described security element comprises: access control, checking, data confidentiality, communications security, data integrity, resisting denying, utilizability, privacy.
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| CN105488417A (en) * | 2014-12-25 | 2016-04-13 | 哈尔滨安天科技股份有限公司 | Method and system for realizing system security level division |
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