CN105376221A - Game message encryption mechanism based on dynamic password, and game system - Google Patents
Game message encryption mechanism based on dynamic password, and game system Download PDFInfo
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- CN105376221A CN105376221A CN201510725240.2A CN201510725240A CN105376221A CN 105376221 A CN105376221 A CN 105376221A CN 201510725240 A CN201510725240 A CN 201510725240A CN 105376221 A CN105376221 A CN 105376221A
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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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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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
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Computer And Data Communications (AREA)
Abstract
The invention discloses a game message encryption mechanism based on a dynamic password, and a game system, and the mechanism comprises the following steps that a game client obtains a public key of a certificate server; the game client registers a public key and a private key; the game client enables the public key to be encrypted through the public key of the certificate server and then to be transmitted to the certificate server, and transmits the public key to a game server in a plaintext manner; the certificate server is decrypted through the private key of the certificate server, obtains the public key of the game client, and transmits the public key to the game server; the game server compares the public keys, obtained from the game client and the certificate server, of the game client; the next step is carried out if the public keys, obtained from the game client and the certificate server, of the game client are consistent with each other; the connection with the game client is cut off if the public keys are not consistent with each other; the game server generates the dynamic password, and transmits the dynamic password to the game client; and the game server and the game client employs the dynamic password to achieve the encryption and decryption of a communication message. The mechanism can improve the safety of game message communication.
Description
Technical field
The present invention relates to field of play, particularly relate to a kind of game message encryption mechanism based on dynamic password and games system.
Background technology
Online game is divided into game server end and game client, player is carrying out in the process of playing, game client needs to carry out a large amount of message communicatings with game server end, these message are transmitted by common signal channel, so be easy to be eavesdropped by lawless person and distort, result in various by forging message and revising the plug-in generation that message destroys game balance.In order to address this problem, in most of existing communication mechanism, game server end and game client have employed the algorithm of symmetric cryptography, and algorithm has arranged a fixing key, and two ends all use this same cipher key pair communication message to encrypt and decrypt.But make fail safe in this way not high, because lawless person can easily pass through hacker software carry out decompiling to obtain enciphering and deciphering algorithm and key to game client program, once after getting key and enciphering and deciphering algorithm, lawless person still can freely forge communication information and revise.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of game message encryption mechanism based on dynamic password, and make each game client when communicating with game server end at every turn, the message encryption and decryption key used is all different.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of game message encryption mechanism based on dynamic password, comprises the steps:
S1, game client obtain the PKI of certificate server;
The PKI of S2, game client registration oneself and private key;
S3, game client send to certificate server after being encrypted by the PKI of the PKI certificate server of oneself, and the PKI of oneself is sent to game server with form expressly;
The private key of S4, certificate server certificate server is decrypted, and obtains the PKI of game client, and this PKI is sent to game server;
The PKI of the game client that the contrast of S5, game server receives from game client and certificate server, if unanimously, then carries out step S6; If inconsistent, then disconnect the connection with game client;
S6, game server generate dynamic key, and send to game client;
S7, game server end and game client use described dynamic key to carry out encryption and decryption to communication information.
The invention still further relates to a kind of games system based on dynamic password, comprise game client, certificate server and game server, described game client comprises the first generation module, acquisition module, the first encrypting module and the first sending module; Described certificate server comprises the first deciphering module and the second sending module; Described game server comprises comparing module, dynamic key production module and the 3rd sending module;
Described first generation module is for generating PKI and the private key of game client;
Described acquisition module is for obtaining the PKI of certificate server;
Described first encrypting module is encrypted for using the PKI of the PKI of certificate server to game client;
Described first sending module is used for the content after by described first encrypting module encryption and sends to certificate server, and the PKI of game client is sent to game server with form expressly;
Described first deciphering module is decrypted the content after the first encrypting module encryption for using the private key of certificate server, obtains the PKI of game client;
Described second sending module is used for the PKI of the game client obtained after the first deciphering module deciphering to send to game server;
Described comparing module for contrasting the PKI of the game client received from game client and certificate server, if unanimously, then operation state key production module; If inconsistent, then disconnect the connection with game client;
Described dynamic key production module is for generating dynamic key;
Described 3rd sending module is used for described dynamic secret key to send to game client;
Game server and game client use described dynamic key to carry out encryption and decryption to communication information.
Beneficial effect of the present invention is: by arranging certificate server, ensures that the PKI that game client generates can not be tampered in the process sending to game server end; Game server end uses different dynamic key to be encrypted communication information with each game client when being connected at every turn, and each communication information all utilizes dynamic key to encrypt, and drastically increases the fail safe of online game message communicating.
Accompanying drawing explanation
Fig. 1 is the flow chart one of the embodiment of the present invention one;
Fig. 2 is the flowchart 2 of the embodiment of the present invention one;
Fig. 3 is the flow chart 3 of the embodiment of the present invention one;
Fig. 4 is the system configuration schematic diagram of the embodiment of the present invention one.
Label declaration: 1, game client; 2, certificate server; 3, game server;
11, the first generation module; 12, acquisition module; 13, parsing module; 14, the first encrypting module; 15, the first sending module; 16, dynamic key deciphering module; 17, communication information encryption/decryption module;
21, the second generation module; 22, the first deciphering module; 23, the second sending module;
31, comparing module; 32, dynamic key production module; 33, dynamic key encrypting module; 34, the 3rd sending module; 35, communication information encryption/decryption module.
Embodiment
By describing technology contents of the present invention in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
The design of most critical of the present invention is: on game client connects when game server, dynamic key is used to shake hands algorithm to carry out the dynamic key exchange of game server end and game client, once exchange got well dynamic key after, namely game server end and game client adopt this dynamic key to carry out encryption and decryption to communication informations all afterwards.If after this game client and game server disconnect, then the dynamic key of current communication will lose efficacy, and carry out dynamic key exchange again when treating that next time, this game client connected game server.
Refer to Fig. 1, a kind of game message encryption mechanism based on dynamic password, comprises the steps:
S1, game client obtain the PKI of certificate server;
The PKI of S2, game client registration oneself and private key;
S3, game client send to certificate server after being encrypted by the PKI of the PKI certificate server of oneself, and the PKI of oneself is sent to game server with form expressly;
The private key of S4, certificate server certificate server is decrypted, and obtains the PKI of game client, and this PKI is sent to game server;
The PKI of the game client that the contrast of S5, game server receives from game client and certificate server, if unanimously, then carries out step S6; If inconsistent, then disconnect the connection with game client;
S6, game server generate dynamic key, and send to game client;
S7, game server end and game client use described dynamic key to carry out encryption and decryption to communication information.
From foregoing description, beneficial effect of the present invention is: by arranging certificate server, ensures that the PKI that game client generates can not be tampered in the process sending to game server end; Game server end uses different dynamic key to be encrypted communication information with each game client when being connected at every turn, drastically increases the fail safe of online game message communicating.
Further, described step S1 comprises:
S11, certificate server generate PKI and the private key of certificate server;
S12, game client connect certificate server, obtain the digital certificate of certificate server, and verify the legitimacy of this certificate;
S13, game client resolution digital certificate, obtain the PKI of certificate server.
Further, in described step S2, game client based on rivest, shamir, adelman, stochastic generation PKI and a private key.
Further, described step S6 specifically comprises:
S61, game server end stochastic generation dynamic key;
S62, game server end send to game client after being encrypted by the PKI of dynamic key game client;
S63, the game client private key of oneself is decrypted, and obtains dynamic key;
Further, described step S7 game server end and game client all use symmetric encipherment algorithm and this dynamic key to carry out encryption and decryption to communication information.
Refer to Fig. 4, a kind of games system based on dynamic password, comprises game client 1, certificate server 2 and game server 3, and described game client 1 comprises the first generation module 11, acquisition module 12, first encrypting module 14 and the first sending module 15; Described certificate server 2 comprises the first deciphering module 22 and the second sending module 23; Described game server 3 comprises comparing module 31, dynamic key production module 32 and the 3rd sending module 34;
Described first generation module 11 is for generating PKI and the private key of game client 1;
Described acquisition module 12 is for obtaining the PKI of certificate server 2;
Described first encrypting module 14 is encrypted for using the PKI of the PKI of certificate server 2 to game client 1;
Described first sending module 15 sends to certificate server 2 for the content after being encrypted by described first encrypting module 14, and the PKI of game client 1 is sent to game server 3 with form expressly;
Described first deciphering module 22 is decrypted the content after the first encrypting module 14 encryption for using the private key of certificate server 2, obtains the PKI of game client 1;
Described second sending module 23 sends to game server 3 for the PKI of the game client 1 the first deciphering module 22 being deciphered rear acquisition;
Described comparing module 31 for contrasting the PKI of the game client 1 received from game client 1 and certificate server 2, if unanimously, then operation state key production module 32; If inconsistent, then disconnect the connection with game client 1;
Described dynamic key production module 32 is for generating dynamic key;
Described 3rd sending module 34 is for sending to game client 1 by described dynamic secret key;
Game server 3 and game client 1 use described dynamic key to carry out encryption and decryption to communication information.
Seen from the above description, this games system can be user and provides a more fair game environment, makes user can obtain a better recreation experience in whole game process.
Further, described certificate server 2 also comprises the second generation module 21, for generating PKI and the private key of certificate server 2;
The acquisition module 12 of described game client 1 also for obtaining the digital certificate of certificate server 2, and verifies the legitimacy of this certificate;
Described acquisition module 12 also comprises a parsing module 13, and described parsing module 13 for resolving described digital certificate, and obtains the PKI of certificate server 2.
Further, described first generation module 11 based on rivest, shamir, adelman, stochastic generation PKI and a private key.
Further, described game server 3 also comprises dynamic key encrypting module 33, and described game client 1 also comprises dynamic key deciphering module 16;
Dynamic key described in dynamic key production module 32 stochastic generation;
The dynamic key of above-mentioned stochastic generation is encrypted for utilizing the PKI of game client 1 by described dynamic key encrypting module 33;
Described dynamic key deciphering module 16 is decrypted for utilizing the dynamic key of the private key of game client 1 to above-mentioned encryption.
Further, game server 3 and game client 1 comprise communication information encryption/decryption module 35 and 17 respectively, carry out encryption and decryption for using communication information described in symmetric encipherment algorithm and described dynamic secret key pair.
Embodiment one
Please refer to Fig. 1, embodiments of the invention one are: a kind of game message encryption mechanism based on dynamic password, comprises the steps:
S1: certificate server generates PKI and the private key of certificate server; When game client connects game server, first obtain the PKI of certificate server from certificate server;
S2: game client based on rivest, shamir, adelman, the private key of the PKI of stochastic generation one oneself and oneself;
S3: after the PKI of the PKI certificate server of oneself is encrypted by game client, sends to certificate server by the content after encryption, and the PKI of oneself is sent to game server with form expressly;
S4: certificate server receives the content after encryption, is decrypted with the private key of certificate server, obtains the PKI of game client, and this PKI is sent to game server;
S5: game server receives respectively from the PKI of the game client of game client and certificate server, and carry out contrast and judge, if inconsistent, then game server disconnects the connection with game client; If consistent, then carry out step S6;
S6: game server generates dynamic key, and dynamic key is directly sent to game client;
Optionally, in order to improve fail safe further, as shown in Figure 2, step S6 can comprise the following steps:
S61: game server stochastic generation dynamic key;
S62: after dynamic key is first encrypted with the PKI of game client by game server end, sends to game client by the content after encryption;
S63: game client receives the content after encryption, is decrypted with the private key of oneself, obtains dynamic key;
S7: before game server end and game client disconnect, all uses symmetric encipherment algorithm and this dynamic key to carry out encryption and decryption to communication information.
In the present embodiment, game server end uses different dynamic key to be encrypted communication information with each game client when being connected at every turn, and communication information all utilizes described dynamic key to be encrypted each time, drastically increases the fail safe of online game message communicating.
Embodiment two
Please refer to Fig. 3, embodiments of the invention two to step S1, have namely done further restriction to the step of the PKI obtaining certificate server on the basis of embodiment one.
S11: certificate server generates PKI and the private key of certificate server;
S12: game client connects certificate server, obtains the digital certificate of certificate server, and verifies the legitimacy of this certificate;
S13: game client resolution digital certificate, obtains the PKI of certificate server.
The legitimacy of the present embodiment first authentication verification server digital certificate, then obtains the PKI of certificate server, further increases fail safe.
Embodiment three
Please refer to Fig. 4, for embodiments of the invention three, it is the games system based on dynamic password corresponding with embodiment one, comprise game client 1, certificate server 2 and game server 3, described game client 1 comprises the first generation module 11, acquisition module 12, first encrypting module 14 and the first sending module 15; Described certificate server 2 comprises the second generation module 21, first deciphering module 22 and the second sending module 23; Described game server 3 comprises comparing module 31, dynamic key production module 32 and the 3rd sending module 34;
Second generation module 21 of certificate server 2 generates PKI and the private key of certificate server 2, and private key is sent to the first deciphering module 22; When game client 1 connects game server 3, the acquisition module 12 of game client 1 obtains the PKI of certificate server 2, and the PKI of certificate server 2 is sent to the first encrypting module 14 of game client 1; Wherein obtain certificate server 2 PKI specifically can comprise: the acquisition module 12 of game client 1 obtains the digital certificate of certificate server 2, and verify the legitimacy of this certificate, described acquisition module 12 also comprises a parsing module 13, described parsing module 13 for resolving described digital certificate, and obtains the PKI of certificate server 2.
First generation module 11 of game client 1 is based on rivest, shamir, adelman, the PKI of a stochastic generation game client 1 and the private key of a game client 1, and the PKI of game client 1 is sent to the first encrypting module 14 and the first sending module 15 of game client 1, the PKI of the PKI certificate server 2 of game client 1 is encrypted by the first encrypting module 14, content after encryption is sent to the first sending module 15, content after encryption is sent to the first deciphering module 22 of certificate server 2 by the first sending module 15, and the PKI of game client 1 is sent to the comparing module 31 of game server 3 with form expressly,
First deciphering module 22 of certificate server 2 receives the content after encryption, is decrypted with the private key of certificate server 2, obtains the PKI of game client 1, and this PKI is sent to the comparing module 31 of game server 3 by the second sending module 23;
Comparing module 31 receives respectively from the PKI of the game client 1 of game client 1 and certificate server 2, carries out contrast judge it, if inconsistent, then game server 3 disconnects the connection with game client 1, if consistent, then dynamic key production module 32 stochastic generation one dynamic key of running game server 3, and through the 3rd sending module 34, described dynamic key is directly sent to game client 1, alternatively, in order to improve fail safe further, described game server 3 also comprises dynamic key encrypting module 33, described game client 1 also comprises dynamic key deciphering module 16, after described dynamic key production module 32 generates dynamic key, dynamic key is sent to dynamic key encrypting module 33, the PKI of dynamic key game client 1 is encrypted by dynamic key encrypting module 33, content after encryption is sent to the dynamic key deciphering module 16 of game client 1 by the 3rd sending module 34, content after dynamic key deciphering module 16 utilizes the private key of game client 1 to decipher above-mentioned encryption, obtain dynamic key wherein,
Game server 3 and game client 1 also comprise communication information encryption/decryption module 35 and 17 respectively, described communication information encryption/decryption module 35 and 17 uses symmetric encipherment algorithm and described dynamic key to carry out encryption and decryption to communication information, utilize the encrypted message of described encryption/decryption module to communicate between game server 3 and game client 1, and utilize encryption/decryption module to be decrypted the message received.
Before game server 3 and game client 1 disconnect, all communication informations of game server 3 and game client 1 all utilize aforesaid way to carry out dynamic protection, drastically increase the fail safe of online game message communicating.
In sum, a kind of game message encryption mechanism based on dynamic password provided by the invention and games system, game server end uses different dynamic key to be encrypted communication information with each game client when being connected at every turn, and each communication information all utilizes dynamic key to encrypt, drastically increase the fail safe of online game message communicating, for user provides a more fair game environment, make user can obtain a better recreation experience in whole game process.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing specification of the present invention and accompanying drawing content to do, or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1., based on a game message encryption mechanism for dynamic password, it is characterized in that: comprise the steps:
S1, game client obtain the PKI of certificate server;
The PKI of S2, game client registration oneself and private key;
S3, game client send to certificate server after being encrypted by the PKI of the PKI certificate server of oneself, and the PKI of oneself is sent to game server with form expressly;
The private key of S4, certificate server certificate server is decrypted, and obtains the PKI of game client, and this PKI is sent to game server;
The PKI of the game client that the contrast of S5, game server receives from game client and certificate server, if unanimously, then carries out step S6; If inconsistent, then disconnect the connection with game client;
S6, game server generate dynamic key, and send to game client;
S7, game server and game client use described dynamic key to carry out encryption and decryption to communication information.
2. the game message encryption mechanism based on dynamic password according to claim 1, is characterized in that: described step S1 comprises:
S11, certificate server generate PKI and the private key of certificate server;
S12, game client connect certificate server, obtain the digital certificate of certificate server, and verify the legitimacy of this certificate;
S13, game client resolution digital certificate, obtain the PKI of certificate server.
3. the game message encryption mechanism based on dynamic password according to claim 1, is characterized in that: in described step S2, game client based on rivest, shamir, adelman, stochastic generation PKI and a private key.
4. the game message encryption mechanism based on dynamic password according to any one of claim 1-3, is characterized in that: described step S6 specifically comprises:
S61, game server stochastic generation dynamic key;
S62, game server send to game client after being encrypted by the PKI of dynamic key game client;
S63, the game client private key of oneself is decrypted, and obtains dynamic key.
5. the game message encryption mechanism based on dynamic password according to any one of claim 1-3, is characterized in that: described step S7 game server and game client all use symmetric encipherment algorithm and this dynamic key to carry out encryption and decryption to communication information.
6. based on a games system for dynamic password, comprise game client, certificate server and game server, is characterized in that:
Described game client comprises the first generation module, acquisition module, the first encrypting module and the first sending module;
Described certificate server comprises the first deciphering module and the second sending module;
Described game server comprises comparing module, dynamic key production module and the 3rd sending module;
Described first generation module is for generating PKI and the private key of game client;
Described acquisition module is for obtaining the PKI of certificate server;
Described first encrypting module is encrypted for using the PKI of the PKI of certificate server to game client;
Described first sending module is used for the content after by described first encrypting module encryption and sends to certificate server, and the PKI of game client is sent to game server with form expressly;
Described first deciphering module is decrypted the content after the first encrypting module encryption for using the private key of certificate server, obtains the PKI of game client;
Described second sending module is used for the PKI of the game client obtained after the first deciphering module deciphering to send to game server;
Described comparing module for contrasting the PKI of the game client received from game client and certificate server, if unanimously, then operation state key production module; If inconsistent, then disconnect the connection with game client;
Described dynamic key production module is for generating dynamic key;
Described 3rd sending module is used for described dynamic secret key to send to game client;
Game server and game client use described dynamic key to carry out encryption and decryption to communication information.
7. the games system based on dynamic password according to claim 6, is characterized in that:
Described certificate server also comprises the second generation module, for generating PKI and the private key of certificate server;
The acquisition module of described game client also for obtaining the digital certificate of certificate server, and verifies the legitimacy of this certificate;
Described acquisition module also comprises a parsing module, and described parsing module for resolving described digital certificate, and obtains the PKI of certificate server.
8. the games system based on dynamic password according to claim 6, is characterized in that: described first generation module based on rivest, shamir, adelman, stochastic generation PKI and a private key.
9. the games system based on dynamic password according to any one of claim 6-8, is characterized in that: described game server also comprises dynamic key encrypting module, and described game client also comprises dynamic key deciphering module;
Dynamic key described in dynamic key production module stochastic generation;
The dynamic key of above-mentioned stochastic generation is encrypted for utilizing the PKI of game client by described dynamic key encrypting module;
Described dynamic key deciphering module is decrypted for utilizing the dynamic key of the private key of game client to above-mentioned encryption.
10. the games system based on dynamic password according to any one of claim 6-8, it is characterized in that: game server and game client comprise communication information encryption/decryption module respectively, carrying out encryption and decryption for using communication information described in symmetric encipherment algorithm and described dynamic secret key pair.
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| CN201510725240.2A CN105376221B (en) | 2015-10-30 | 2015-10-30 | Game message encryption mechanism and game system based on dynamic password |
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| CN105376221B (en) | 2019-05-21 |
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