CN103491097A - Software authorization system based on public key cryptosystem - Google Patents
Software authorization system based on public key cryptosystem Download PDFInfo
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- CN103491097A CN103491097A CN201310456961.9A CN201310456961A CN103491097A CN 103491097 A CN103491097 A CN 103491097A CN 201310456961 A CN201310456961 A CN 201310456961A CN 103491097 A CN103491097 A CN 103491097A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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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
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
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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
- H04L9/006—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving public key infrastructure [PKI] trust models
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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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
Abstract
The invention discloses a software authorization system based on public key cryptosystem. The software authorization system comprises a server end and a client end, wherein the server end comprises an institution authorization certification generation module, a receiving module, a verification module and a user authorization certificate generation module. The user authorization certificate generation module comprises a digital signing module used for carrying out digital signing on computer hardware characteristics h0 in a user registration file with an RSA private key to generate S0, an encryption string generation module used for carrying out preset hybrid operations on obtained software version information v, user information u, an authorization term ex, current time cur and s0 to generate an encryption string signB64 and a certificate generation module used for generating a user authorization certificate with the encryption string signB64 and the RSA public key. The method can prevent software from being illegally copied, meanwhile, the software can be managed by a software issuer in a concentrated mode, and upgrading and tracking of the software, pushing personalized services for users and other after-sale management are facilitated.
Description
Technical field
The present invention relates to software authorization method, relate in particular to a kind of soft ware authorization system based on public-key cryptosystem.
Background technology
Pirate existence has become the key factor of restriction computer software industry development, and software has the character such as transreplication, cost of reproduction are low, and nowadays enterprise needs badly and takes technical measures to protect the copyright of oneself.Therefore research and design goes out a kind of effective, practical and software authorization method that have security intensity, has important practical significance.
In public-key cryptosystem, encryption key is different from decruption key.In all public key cryptography systems up to now, RSA Algorithm is the most famous, most popular a kind of.RSA Algorithm has solved the difficult problem of utilizing overt channel transmission distribution of the key of symmetric encipherment algorithm well; also can utilize RSA Algorithm to complete digital signature the denying and denying with antagonism information to information; can also utilize digital signature to find that relatively easily the assailant is to illegally the distorting of information, with the protected data information integrity simultaneously.
Software protection mode commonly used generally is divided into two kinds of soft encryption and hardware encryptions.Hardware encryption mainly refers to softdog or encryption lock.The advantage of hardware encipher lock is to authorize granting simple, removable.But, along with the use of the Internet is more and more universal, also expose many shortcomings: 1) be applicable to traditional disposably and permanently mandate, can't realize beta release and buy as required; 2) existence of hardware brings the cost of extra production, initialization, logistics, installation and maintenance; 3) experience that driving and client component and extra hardware device have affected the client is installed; 4) can't realize the electronization distribution of Internet-based; 5) be difficult to be upgraded, follow the tracks of and management after sale.The resist technology to software that soft encryption does not rely on special hardware to realize.Its sharpest edges are extremely low encryption cost.Mainly contain at present sequence number scheme, License documents programme, password table scheme etc.Wherein the licensing scheme of License file is widely used gradually, and the software business man can limit only has the user who has bought License to use software product on specific machine.License file mechanism mainly contains following functions: 1) application program can create and verify the license of binding to entities such as user, systems; 2) prevent that the user from arbitrarily copying software and license; 3) license can be permanent or provisional; 4) data signature mechanism that the checking of license is provided by JAVA Security API realizes, fail safe is guaranteed.But current license file authorizing mechanism is used and is also had significantly deficiency under the organization management environment, and it can't realize carrying out modular mandate by user class.Organization administrator role can't effectively manage the authorization message of its lower domestic consumer.
Summary of the invention
The technical problem to be solved in the present invention is the weak point for encryption technology in prior art, provide a kind of convenience applicable under organizational environment, based on public-key cryptosystem, can under internet environment, use soft ware authorization system effective, practical and that there is security intensity.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of soft ware authorization system based on public-key cryptosystem is provided, comprises server end and client, wherein:
Server end comprises:
Mechanism's certificate of authority generation module, encrypt and generate mechanism's certificate of authority for the application information according to the organization user;
Receiver module, for receiving mechanism's certificate of authority and the register-file transmitted by client;
Authentication module, be decrypted for the mechanism's certificate of authority to receiving, and the information after deciphering is verified;
Subscriber authorisation certificates constructing module, for when verifying, be encrypted register-file, generates the subscriber authorisation certificate and also return to client;
Client comprises:
The register-file acquisition module, for when the user uses software for the first time, obtain the register-file of the XML form that comprises computer hardware feature, user profile, software version information;
The subscriber authorisation certificate storage module, for storing the subscriber authorisation certificate;
Deciphering and authentication module, while for the client, starting software, be decrypted and verify the subscriber authorisation certificate, if the decryption verification success start software, otherwise software does not start;
Wherein, subscriber authorisation certificates constructing module specifically comprises:
The digital signature module, use the RSA private key to the computer hardware feature h in user's register-file
0carry out digital signature, generate s
0;
Module is concatenated in encryption, for software version information v, user profile u by obtaining, licensing term ex, current time cur and s
0carry out default hybrid operation and generate encryption string signB64;
The certificates constructing module generates the subscriber authorisation certificate for encrypting string signB64 together with the RSA PKI.
In system of the present invention, described encryption concatenate into module while carrying out the COMPLEX MIXED computing specifically for:
I. obtain current time in system cur, and obtain byte arrays b8 after executable operations ex+cur;
Ii. server end generates 22 random number ran22, and is combined into 32 bit byte array bt32 with b8, v, u;
Iii. by the 8th the byte b8[8 of bt32 and b8] executable operations b32
b8[8] generation btxor32;
Iv. executable operations h
0 btxor32 produces mixXor32;
V. merge mixXor32 and s
0produce mixFinal64;
Vi. mixFinal64 is carried out to the Base64 coding and produce signB64.
In system of the present invention, described computer hardware feature comprises BIOS numbering, hard disk sequence number and MAC Address.
In system of the present invention, described user profile comprises user ID and academic title.
In system of the present invention, server end also comprises that authority arranges module, inquires about or revise the authority of individual software users under its mechanism during for organization user's logon server end.
The beneficial effect that the present invention produces is: soft ware authorization system of the present invention guarantees fail safe and the integrality of subscriber authorisation certificate with RSA Algorithm, and the subscriber authorisation certificate can be used the overt channel transmission such as the Internet.Therefore, software authorization method of the present invention, software can be realized the electronization distribution of Internet-based, and can realize the beta release mandate of software and buy and authorize as required.In addition, the present invention is bound subscriber authorisation certificate and user computer hardware feature, user profile, software version information, prevent that software from being illegally copied, simultaneously by software publishing person centralized management, facilitate software to be upgraded, follow the tracks of and reach management after sale such as pushing personalized service for the user.
Moreover the present invention facilitates organization administrator user inquiry and manages its lower different stage user's mandate, makes the different stage user use targetedly the disparate modules of software.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the software authorization method flow chart based on public-key cryptosystem of the embodiment of the present invention;
Fig. 2 is the schematic diagram of the embodiment of the present invention client application organization certificate of authority;
Fig. 3 is the generation schematic diagram of embodiment of the present invention subscriber authorisation certificate.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The soft ware authorization system of the embodiment of the present invention based on public-key cryptosystem, as shown in Figure 1, comprise server end and client, wherein:
Server end comprises:
Mechanism's certificate of authority generation module, encrypt and generate mechanism's certificate of authority for the application information according to the organization user; The described mechanism certificate of authority is that server end is encrypted and generated according to organization user's application information, and offer the organization user and manage preservation, the organization user is distributed to individual software users, and individual software users only has just can carry out Authorized operation by mechanism's certificate of authority and the register-file end that uploads onto the server simultaneously.The content of mechanism's certificate of authority comprises the essential informations such as mechanism information, purchase software version, purchase authorized quantity;
Described register-file is software users while using software for the first time, the XML formatted file that comprises computer hardware feature, user profile, software version information obtained from client.In embodiments of the invention, described computer hardware feature comprises BIOS numbering, hard disk sequence number and MAC Address etc.Described user profile comprises user ID and academic title etc.
Receiver module, for receiving mechanism's certificate of authority and the register-file transmitted by client;
Authentication module, be decrypted for the mechanism's certificate of authority to receiving, and the information after deciphering is verified; In one embodiment of the invention, the information after deciphering is verified and is specially: at first, server end checks the ID of mechanism whether lane database exists client to transmit, if exist, whether the decision mechanism authorized quantity has a surplus; Otherwise, exit checking.Secondly, whether the machine code that can represent the computer hardware feature that the client that judges server end transmits is unique in data-base recording, if, according to authorized quantity, whether remain to determine that what return to client is formal version or the subscriber authorisation certificate of trial edition, if not, judge in storehouse subscriber authorisation certificate that should the machine code application whether out of date, if, exit checking, otherwise by checking.
Subscriber authorisation certificates constructing module, for when verifying, be encrypted register-file, generates the subscriber authorisation certificate and also return to client;
Client comprises:
The register-file acquisition module, for when the user uses software for the first time, obtain the register-file of the XML form that comprises computer hardware feature, user profile, software version information;
The subscriber authorisation certificate storage module, for storing the subscriber authorisation certificate;
Deciphering and authentication module, while for the client, starting software, be decrypted and verify the subscriber authorisation certificate, if the decryption verification success start software, otherwise software does not start;
Wherein, subscriber authorisation certificates constructing module specifically comprises:
The digital signature module, use the RSA private key to the computer hardware feature h in user's register-file
0carry out digital signature, generate s
0;
Module is concatenated in encryption, for software version information v, user profile u by obtaining, licensing term ex, current time cur and s
0carry out default hybrid operation and generate encryption string signB64;
The certificates constructing module generates the subscriber authorisation certificate for encrypting string signB64 together with the RSA PKI.
In one embodiment of the present of invention, described encryption concatenate into module while carrying out the COMPLEX MIXED computing specifically for:
I. obtain current time in system cur, and obtain byte arrays b8 after executable operations ex+cur;
Ii. server end generates 22 random number ran22, and is combined into 32 bit byte array bt32 with b8, v, u;
Iii. by the 8th the byte b8[8 of bt32 and b8] executable operations b32
b8[8] generation btxor32;
Iv. executable operations h
0 
btxor32 produces mixXor32;
V. merge mixXor32 and s
0produce mixFinal64;
Vi. mixFinal64 is carried out to the Base64 coding and produce signB64.
In another embodiment of the present invention, can select hybrid operation in another, be specially:
1, carry out ex+cur, obtain byte arrays b8;
2, server end generates 20 random number ran20, and with b8, v, u, a p(2 byte), merge generation 32 bit byte array bt32;
3, carry out modular arithmetic: h
0mod bt32, generate sign32;
4, carry out the 8th the byte b8[8 of XOR: b8]
sign32 generates btxor32;
5, carry out xor operation: h
0 
btxor32 produces mixXor32;
6, merge mixXor32 and s
0, generate mixFinal64;
7, mixFinal64 is carried out to the Base64 coding and produce signB64.
In embodiments of the invention, server end also comprises that authority arranges module, inquires about or revise the authority of individual software users under its mechanism during for organization user's logon server end.
As shown in Figure 2, in one embodiment of the present of invention, the step of the client application organization certificate of authority specifically comprises: the essential informations such as the mechanism information that server end reception client transmits, purchase software version, purchase authorized quantity, these essential informations are encrypted, generate mechanism's certificate of authority, and the essential information of mechanism and mechanism's authorization message are saved in database, then mechanism's certificate of authority is returned to client.
The organization user can inquire about or revise the authority of individual software users under its mechanism by the logon server end, thereby makes the different stage user use targetedly the disparate modules of software.
As shown in Figure 3, in a preferred embodiment of the present invention, the software authorization method of the soft ware authorization system based on public-key cryptosystem specifically comprises:
(1) the software publishing person uses RSA Algorithm to generate pair of secret keys (PKI P and private key S), and S preserves by the software publishing person is secret, and P can openly download;
(2) when software users is used software for the first time, software is the register-file of the Information generation XML forms such as user's computer hardware feature, user profile, software version, and the user is by register-file (License-A.dat) person that submits to the software publishing;
(3) the software publishing person uses the SHA1 algorithm, with the S in (1), the computer hardware feature in License-A.dat file in (2) is carried out to digital signature;
(4) the software publishing person carries out specific hybrid operation (specifically described in above-described embodiment, be not repeated herein) together with the information such as software version information, licensing term and current time;
(5) the software publishing person generates subscriber authorisation certificate (License-B.dat) by the enciphered message in (3), mixed information in (4) with together with P in (1), returns to software users;
(6) P in software application (1) is decrypted checking to the enciphered message in (3), and obtains the authorization messages such as licensing term by the inverse operation of hybrid operation in (4); If be verified and licensing term effective, software starts normal operation, otherwise software is out of service.
The soft ware authorization system that the present invention is based on public-key cryptosystem is used RSA Algorithm and SHA1 algorithm to guarantee fail safe and the integrality of subscriber authorisation certificate, and the subscriber authorisation certificate can be used the overt channel transmission such as the Internet.Therefore, the present invention can realize the electronization distribution of Internet-based, and can realize the beta release mandate of software and buy and authorize as required.
The present invention is bound subscriber authorisation certificate and user computer hardware feature, user profile, software version information, prevent that software from being illegally copied, by software publishing person centralized management, facilitate software to be upgraded, follow the tracks of and reach management after sale such as pushing personalized service for the user simultaneously.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (5)
1. the soft ware authorization system based on public-key cryptosystem, is characterized in that, comprises server end and client, wherein:
Server end comprises:
Mechanism's certificate of authority generation module, encrypt and generate mechanism's certificate of authority for the application information according to the organization user;
Receiver module, for receiving mechanism's certificate of authority and the register-file transmitted by client;
Authentication module, be decrypted for the mechanism's certificate of authority to receiving, and the information after deciphering is verified;
Subscriber authorisation certificates constructing module, for when verifying, be encrypted register-file, generates the subscriber authorisation certificate and also return to client;
Client comprises:
The register-file acquisition module, for when the user uses software for the first time, obtain the register-file of the XML form that comprises computer hardware feature, user profile, software version information;
The subscriber authorisation certificate storage module, for storing the subscriber authorisation certificate;
Deciphering and authentication module, while for the client, starting software, be decrypted and verify the subscriber authorisation certificate, if the decryption verification success start software, otherwise software does not start;
Wherein, subscriber authorisation certificates constructing module specifically comprises:
The digital signature module, use the RSA private key to the computer hardware feature h in user's register-file
0carry out digital signature, generate s
0;
Module is concatenated in encryption, for software version information v, user profile u by obtaining, licensing term ex, current time cur and s
0carry out default hybrid operation and generate encryption string signB64;
The certificates constructing module generates the subscriber authorisation certificate for encrypting string signB64 together with the RSA PKI.
2. system according to claim 1, is characterized in that, described encryption concatenate into module while carrying out the COMPLEX MIXED computing specifically for:
Obtain current time in system cur, and obtain byte arrays b8 after executable operations ex+cur;
Server end generates 22 random number ran22, and is combined into 32 bit byte array bt32 with b8, v, u;
The 8th the byte b8[8 by bt32 and b8] executable operations b32
b8[8] generation btxor32;
Executable operations h
0 
btxor32 produces mixXor32;
Merge mixXor32 and s
0produce mixFinal64;
MixFinal64 is carried out to the Base64 coding and produce signB64.
3. system according to claim 1, is characterized in that, described computer hardware feature comprises BIOS numbering, hard disk sequence number and MAC Address.
4. system according to claim 1, is characterized in that, described user profile comprises user ID and academic title.
5. system according to claim 1, is characterized in that, server end also comprises that authority arranges module, inquires about or revise the authority of individual software users under its mechanism during for organization user's logon server end.
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| CN103971034A (en) * | 2014-04-24 | 2014-08-06 | 福建联迪商用设备有限公司 | Method and device for protecting Java software |
| CN103995991A (en) * | 2014-05-07 | 2014-08-20 | 华中师范大学 | Method for binding hardware information and secret keys in software copyright protection |
| CN104009839A (en) * | 2014-06-16 | 2014-08-27 | 华中师范大学 | Generating method for secret keys with user information |
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