CN102546601B - The servicing unit of cloud computing terminal for accessing virtual machine - Google Patents
The servicing unit of cloud computing terminal for accessing virtual machine Download PDFInfo
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- CN102546601B CN102546601B CN201110431142.XA CN201110431142A CN102546601B CN 102546601 B CN102546601 B CN 102546601B CN 201110431142 A CN201110431142 A CN 201110431142A CN 102546601 B CN102546601 B CN 102546601B
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Abstract
The invention discloses a kind of servicing unit of cloud computing terminal for accessing virtual machine, comprise link block and usbkey, link block plays and forwards cloud terminal, the effect of various request and information between usbkey and virtual machine, usbkey PIN and virtual machine related information is saved in usbkey, it is after user identity is by verification, forward after virtual machine related information is encrypted, data transmission security.User only need hold the authentication password of usbkey and select corresponding virtual machine to get final product access of virtual machine, when accessing multiple virtual machine, without the need to recording user name and the password of each virtual machine, when user thinks temporarily to exit the connection with virtual machine, only need pull up usbkey from cloud terminal, simple to operation.
Description
Technical field
The present invention relates to field of cloud computer technology, particularly a kind of servicing unit of cloud computing terminal for accessing virtual machine.
Background technology
Cloud computing " cloud " is exactly be present in the resource on the server cluster on the Internet, it comprises hardware resource (server, memory, CPU etc.) and software resource (as application software, Integrated Development Environment etc.), local computer only needs to send a demand information by the Internet, far-end just has thousands of computer and provides the resource of needs for it and result is turned back to local computer, like this, local computer needs what does hardly, and the computer cluster that all process all provide in cloud computing provider has come.The final goal of cloud computing is that calculating, service and application are supplied to the public as a kind of communal facility, enables people use computer resource as use water, electricity, coal gas and phone.
Cloud computing terminal is an important step in cloud computing industrial chain.In the framework of cloud computing, only have " cloud "+terminal, service and calculating all at " cloud ", and the using and represent all at cloud computing terminal of business, that is, user uses the various services in " cloud " by cloud computing terminal.The development of cloud computing facilitates the development of cloud computing terminal, and cloud computing is worth ideally must could present to user by cloud computing terminal.Following content by cloud computing terminal referred to as cloud terminal.
By Intel Virtualization Technology, virtual machine is supplied to cloud terminal use as service by cloud computing system and uses.In order to terminal use can be allowed to use virtual machine, cloud terminal must connect with virtual machine, allows user log in dummy machine system.
The scheme that current cloud terminal for accessing virtual machine adopts: cloud terminal sends connection request according to user's request to virtual machine, virtual machine process request, username and password authentication request is sent to cloud terminal, user is after cloud terminal submits username and password to, virtual machine verifies the authentication information received, by then connecting, if not, connect unsuccessfully, user cannot use virtual machine.
There is following shortcoming in above-mentioned connection scheme:
Shortcoming 1: the process that cloud terminal and virtual machine connect is dangerous
Reason: at present, cloud terminal and virtual machine directly adopt virtual desktop agreement (as RDP etc.) to connect by network, the content of connection procedure is directly in transmission over networks, and virtual desktop agreement (RDP etc.) function of keeping secret to data is not very strong, therefore the data content of connection procedure is easy to monitored and intercepts and captures on network, makes connection procedure very dangerous.
Shortcoming 2: the authentication of virtual machine is more weak
Reason: in existing scheme, the virtual machine user name that user inputs by cloud terminal and password send to virtual machine by network, and virtual machine carries out verification to complete authentication to username and password.In this way, under user does not change password situation, the authentication information of virtual machine will forever remain unchanged, therefore once username and password network transmission process by other people intercept and capture, monitor or other people by other means obtain password (as when user input password stolen a glance at), the authentication that other people then can easily pass through virtual machine operates on it and obtains the individual subscriber data in user virtual machine.
Shortcoming 3: user operation bothers
Reason: each virtual machine has respective username and password, when a user has multiple virtual machine, then must remember the username and password that each virtual machine is corresponding, this shines into a lot of inconvenience to user, once user forgets the password that virtual machine is corresponding, this will cause this virtual machine to use.In addition, when user be in a hurry to leave temporarily time, user manually must disconnect operation to each virtual machine, and this also can cause a lot of inconvenience to user.
Summary of the invention
The servicing unit of cloud computing terminal for accessing virtual machine of the present invention, strengthens the fail safe of cloud computing terminal for accessing virtual machine, meanwhile, simplifies user operation.
The servicing unit of cloud computing terminal for accessing virtual machine of the present invention, comprises link block and usbkey, and described link block is connected with described usbkey with cloud terminal, virtual machine respectively,
After described link block receives the request of the access of virtual machine that cloud terminal is sent, the request of usbkey PIN is sent to cloud terminal, usbkey PIN cloud terminal sent is forwarded to described usbkey, described usbkey verifies the usbkey PIN received according to stored usbkey PIN, verification is by then notifying described link block, described link block sends connection request to virtual machine, the virtual machine access identity authentication request that sink virtual machine returns, extract virtual machine name list from described usbkey and be sent to cloud terminal, the virtual machine title for access cloud terminal sent is forwarded to described usbkey, described usbkey searches stored user-virtual machine identification information, after encrypting according to predetermined encryption rule with described user-virtual machine identification information corresponding for the virtual machine accessed, the described virtual machine for access is forwarded to by described link block.
Preferably, also comprise usbkey real-time monitoring module, described usbkey is inserted in cloud terminal, described usbkey real-time monitoring module is used for usbkey described in Real-Time Monitoring in the insert state of cloud terminal, when monitoring described usbkey and being pulled out, disconnect described for the virtual machine of access and the connection of cloud terminal.
Preferably, described usbkey comprises computing module and memory module, described memory module comprises usbkey PIN memory cell and user-virtual machine identification information memory cell, described user-virtual machine identification information cell stores user-virtual machine identification information and index thereof
Described computing module, the usbkey PIN received is verified for the usbkey PIN according to described usbkey PIN cell stores, verification is by then notifying described link block, also for according to the index search of described user-virtual machine identification information and the described user-virtual machine identification information corresponding for the virtual machine accessed that receive, after the encryption of predetermined encryption rule, be forwarded to the described virtual machine for access by described link block.
Preferably, after described link block sends connection request to virtual machine, also receive random number from virtual machine, the described virtual machine title for accessing described random number and cloud terminal sent is forwarded to described usbkey in the lump, described usbkey is forwarded to the described virtual machine for access by described link block after described random number being encrypted according to predetermined encryption rule with described user-virtual machine identification information corresponding for the virtual machine accessed.
Preferably, described user-virtual machine identification information comprises virtual machine user name and password, private key for user or digital signature, and described link block adopts data communication encryption technology to be encrypted transmission to described user-virtual machine identification information corresponding for the virtual machine of access.
The servicing unit of cloud computing terminal for accessing virtual machine of the present invention, comprise link block and usbkey, link block plays and forwards cloud terminal, the effect of various request and information between usbkey and virtual machine, usbkey PIN and virtual machine related information is saved in usbkey, it is after user identity is by verification, forward after virtual machine related information is encrypted, data transmission security.User only need hold the authentication password of usbkey and select corresponding virtual machine to get final product access of virtual machine, when accessing multiple virtual machine, without the need to recording user name and the password of each virtual machine, when user thinks temporarily to exit the connection with virtual machine, only need pull up usbkey from cloud terminal, simple to operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the servicing unit of cloud computing terminal for accessing virtual machine of the present invention;
Fig. 2 is the schematic flow sheet of the servicing unit access of virtual machine adopting cloud computing terminal for accessing virtual machine of the present invention.
Embodiment
The servicing unit of cloud computing terminal for accessing virtual machine of the present invention, user will connect with virtual machine, first must hold the usbkey equipment storing this virtual machine respective identification information, secondly also need the authentication password knowing usbkey, lack one and all can not connect this virtual machine.In addition, verification process introduces random number, and the authentication information that each virtual machine is connected is all different, effectively can prevent Replay Attack like this.Usbkey can store multiple user-virtual machine identification information, and user does not need the username and password remembeing each virtual machine, only just can need connect with multiple virtual machine with a usbkey.When user thinks temporarily to exit dummy machine system, in existing scheme, user manually need disconnect operation to each virtual machine.And in this programme, user only need extract the usbkey equipment in cloud terminal, then virtual machine disconnects the connection with cloud terminal immediately, simplifies user operation so greatly.In addition, this servicing unit adopts data communication encryption technology (as ssl protocol, tls protocol, IPsec agreement etc.) to be encrypted transmission to the data of connection procedure.Data communication encryption technology can be guaranteed can not be intercepted and eavesdrop in the transmitting procedure of data on network, in addition can the integrality of service data, guarantees that data are not changed in transmitting procedure.Below in conjunction with accompanying drawing and the detailed the present invention of embodiment.
The servicing unit of cloud computing terminal for accessing virtual machine of the present invention, as shown in Figure 1, comprises link block and usbkey, and described link block is connected with described usbkey with cloud terminal, virtual machine respectively,
After described link block receives the request of the access of virtual machine that cloud terminal is sent, the request of usbkey PIN is sent to cloud terminal, usbkey PIN cloud terminal sent is forwarded to described usbkey, described usbkey verifies the usbkey PIN received according to stored usbkey PIN, verification is by then notifying described link block, described link block sends connection request to virtual machine, the virtual machine access identity authentication request that sink virtual machine returns, extract virtual machine name list from described usbkey and be sent to cloud terminal, the virtual machine title for access cloud terminal sent is forwarded to described usbkey, described usbkey searches stored user-virtual machine identification information, after encrypting according to predetermined encryption rule with described user-virtual machine identification information corresponding for the virtual machine accessed, virtual machine is forwarded to by described link block.
As a preferred embodiment, also comprise usbkey real-time monitoring module, described usbkey is inserted in cloud terminal, described usbkey real-time monitoring module is used for usbkey described in Real-Time Monitoring in the insert state of cloud terminal, when monitoring described usbkey and being pulled out, disconnect the connection of virtual machine and cloud terminal.
As a preferred embodiment, described usbkey comprises computing module and memory module, described memory module comprises usbkey PIN memory cell and user-virtual machine identification information memory cell, described user-virtual machine identification information cell stores user-virtual machine identification information and index thereof.
Described computing module verifies the usbkey PIN received according to the usbkey PIN of described usbkey PIN cell stores, verify by then notifying described link block.Computing module also according to index search and the described user-virtual machine identification information corresponding for the virtual machine accessed received of described user-virtual machine identification information, after the encryption of predetermined encryption rule, is forwarded to virtual machine by described link block.
Usbkey PIN is the first outpost of the tax office of usbkey, only has by identification code certification, and user just has permission and operates the storage data in usbkey.The usbkey PIN of usbkey PIN cell stores can be divided into keeper's identification code and domestic consumer's identification code, and keeper has access limit in the storage of usbkey, and the storage content of domestic consumer to usbkey only has read right.User-virtual machine identification information memory cell comprises index and user-virtual machine identification information, index record virtual machine name and the corresponding physical storage locations of user-virtual machine identification information in usbkey, that is a user can hold a usbkey, and can store multiple user-virtual machine identification information in a usbkey.When keeper creates a virtual machine to user, by pressing pre-defined rule and method generating virtual machines identification information, and virtual machine identification information being write usbkey storage, the identification information of correspondence and encryption and decryption rule being deployed in virtual machine simultaneously.
As a preferred embodiment, after described link block sends connection request to virtual machine, also receive random number from virtual machine, that described random number and cloud terminal are sent is forwarded to described usbkey in the lump for the virtual machine title accessed, described usbkey is forwarded to virtual machine by described link block after described random number being encrypted according to predetermined encryption rule with described user-virtual machine identification information corresponding for the virtual machine accessed.
As a preferred embodiment, described user-virtual machine identification information comprises virtual machine user name and password, private key for user or digital signature, and user-virtual machine identification information that described link block adopts data communication encryption technology corresponding to the virtual machine for access is encrypted transmission.
On the basis of such scheme, the flow process of user access virtual machine as shown in Figure 2:
1. the attachable virtual machine information list of cloud terminal demonstration user, user selects the virtual machine of required connection and sends the request of access of virtual machine to link block.
2. link block process virtual machine connection request, judge whether cloud terminal inserts usbkey, if insert usbkey, then send the request of input usbkey PIN to cloud terminal, and turn to next step, otherwise return insertion usbkey device prompts information to cloud terminal.
3. user inputs usbkey PIN, and input results is sent to link block by cloud terminal, and is transmitted to usbkey by link block.
Computing module verified users PIN in 4.usbkey, as verification is passed through, sends certification by information to link block, otherwise return authentication error message.
5. when link block receives the certification of usbkey PIN by information, then the virtual machine to required access sends connection request, and turns to next step.If link block receives usbkey PIN authentication error information, then judge that whether authentication error number of times is more than 3 times, if so, then returns the information of PIN authentication error more than 3 times to cloud terminal, and exit usbkey identification code verification process.If not, then return identification code authentication error information to cloud terminal, prompting user re-enters usbkey PIN.
6. virtual machine process connection request, generates random number, sends random number and virtual machine access identity authentication request to link block.
7. link block reads the user-virtual machine identification information index in usbkey memory module by usb mouth, extracts the title of virtual machine in index, forms virtual machine name list, and turn back to cloud terminal.The physical location that each virtual machine title of user totem information index record of memory module and respective user-virtual machine identification information store at usbkey.
8. user selects the virtual machine that need connect, and selection result is sent to link block, and virtual machine selection result and random number are sent to usbkey by link block.
The virtual machine title that 9.usbkey selects according to user, searches the concrete physical address of user-virtual machine identification information from index, thus obtains user-virtual machine identification information.Computing module is encrypted according to the rule preset the connection authentication information that computing forms user-virtual machine to user-virtual machine identification information and random number, and be sent to cloud terminal connecting module, this connection authentication information is transmitted to virtual machine by link block again.
10. virtual machine verifies connection authentication information, if verification is passed through, then enters dummy machine system, connects, and proceed to next step with cloud terminal.If verification is not passed through, then to cloud terminal connecting module back-checking not by information in the error message of cloud terminal demonstration to user.
11. link blocks receive virtual machine successful connection information, and to terminal demonstration connection result.
Usbkey real-time monitoring module is preferably placed in virtual machine connection server end, for the connection status of Real-Time Monitoring usbkey in cloud terminal.Usbkey real-time monitoring module sends usbkey every one section of special time to cloud terminal and connects confirmation request, after cloud terminal receives request, judge whether corresponding usbkey inserts, if, then return successful connection information to usbkey real-time monitoring module, then return connection failure information to usbkey real-time monitoring module if not, return usbkey connection failure simultaneously, virtual machine disconnects prompting.If usbkey real-time monitoring module confiscates any return information after sending usbkey connection request to cloud terminal within a certain period of time, then judge this attended operation time-out, auto-returned connection failure information.Usbkey real-time monitoring module receives connection failure information, disconnects the connection of virtual machine and cloud terminal immediately.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (5)
1. a servicing unit for cloud computing terminal for accessing virtual machine, is characterized in that, comprises link block and usbkey, and described link block is connected with described usbkey with cloud computing terminal, virtual machine respectively,
After described link block receives the request of the access of virtual machine that cloud computing terminal is sent, the request of usbkey PIN is sent to cloud computing terminal, the usbkey PIN sent by cloud computing terminal is forwarded to described usbkey, described usbkey verifies the usbkey PIN received according to stored usbkey PIN, verification is by then notifying described link block, described link block sends connection request to virtual machine, the virtual machine access identity authentication request that sink virtual machine returns, extract virtual machine name list from described usbkey and be sent to cloud computing terminal, the virtual machine title for access sent by cloud computing terminal is forwarded to described usbkey, described usbkey searches stored user-virtual machine identification information, after encrypting according to predetermined encryption rule with described user-virtual machine identification information corresponding for the virtual machine accessed, the described virtual machine for access is forwarded to by described link block.
2. the servicing unit of cloud computing terminal for accessing virtual machine according to claim 1, it is characterized in that, also comprise usbkey real-time monitoring module, described usbkey is inserted on cloud computing terminal, described usbkey real-time monitoring module is used for usbkey described in Real-Time Monitoring in the insert state of cloud computing terminal, when monitoring described usbkey and being pulled out, disconnect described for the virtual machine of access and the connection of cloud computing terminal.
3. the servicing unit of cloud computing terminal for accessing virtual machine according to claim 1 and 2, it is characterized in that, described usbkey comprises computing module and memory module, described memory module comprises usbkey PIN memory cell and user-virtual machine identification information memory cell, described user-virtual machine identification information cell stores user-virtual machine identification information and index thereof
Described computing module, the usbkey PIN received is verified for the usbkey PIN according to described usbkey PIN cell stores, verification is by then notifying described link block, also for according to the index search of described user-virtual machine identification information and the described user-virtual machine identification information corresponding for the virtual machine accessed that receive, after the encryption of predetermined encryption rule, be forwarded to the described virtual machine for access by described link block.
4. the servicing unit of cloud computing terminal for accessing virtual machine according to claim 1 and 2, it is characterized in that, after described link block sends connection request to virtual machine, also receive random number from virtual machine, the described virtual machine title for accessing described random number and cloud computing terminal sent is forwarded to described usbkey in the lump, described usbkey is forwarded to the described virtual machine for access by described link block after described random number being encrypted according to predetermined encryption rule with described user-virtual machine identification information corresponding for the virtual machine accessed.
5. the servicing unit of cloud computing terminal for accessing virtual machine according to claim 1 and 2, it is characterized in that, described user-virtual machine identification information comprises in private key for user and digital signature one, virtual machine user name and password, and described link block adopts data communication encryption technology to be encrypted transmission to described user-virtual machine identification information corresponding for the virtual machine of access.
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