CN100504830C - Smart card and USB combined equipment and method for communication with computer - Google Patents
Smart card and USB combined equipment and method for communication with computer Download PDFInfo
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- CN100504830C CN100504830C CNB2007100003283A CN200710000328A CN100504830C CN 100504830 C CN100504830 C CN 100504830C CN B2007100003283 A CNB2007100003283 A CN B2007100003283A CN 200710000328 A CN200710000328 A CN 200710000328A CN 100504830 C CN100504830 C CN 100504830C
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Abstract
A method for realizing communication between computer and integrated unit of intelligent card and USB includes preparing communication protocol for integrated unit of intelligent card and USB in order to solve communication problem between computer and integrated unit of intelligent card and USB for making to use intelligent card control access of USB possible.
Description
Technical field
The present invention relates to computer memory technical field, particularly smart card, USB technical field of memory.
Background technology
SCSI is the abbreviation of English SmallComputer System Interface.In computer memory technical, SCSI is used for connection device, as external disk, scanner etc.When computing machine and these equipment communicate, generally can adopt the protocol mode of SCSI normalized definition to carry out packaged data.
For movable storage device,, also be to carry out according to SCSI order format as USB flash disk.The form of SCSI instruction is as follows:
| The scsi command head | Data | Operating result |
Wherein " scsi command head " is the extraneous order data that transmits to equipment, and " data " part can be the extraneous data that send, and also can be the data that equipment returns to the external world.This SCSI instruction can be described as first kind of SCSI instruction.
The instruction of intelligent card in processing is according to the IS07816 normalized definition, and instruction need be organized according to set form, otherwise can not be accepted by smart card.
Smart card order format is as follows:
| CLA | INS | P1 | P2 | Lc | Data | Le |
Wherein, " CLA " represented the order class, and " INS " represented instruction, and " P1 and P2 " represented parameter, " Lc " is " Data " numeric field data length, and " Data " is the data of " Lc " indication, and " Le " is the data length that the expectation smart card returns.
The equipment complex that combines when a smart card and USB flash disk when realizing communicating with computing machine, needs the operation of smart card techniques control to the USB flash disk resource, opens the USB flash disk read-write channel as being undertaken by smart card techniques again after the authentication.
Realize communicating, need to solve the problem that how in the scsi data bag, to comprise the smart card instruction with so compound USB device.
Summary of the invention:
The objective of the invention is to: the data layout that has comprised second kind of SCSI instruction 102 of smart card instruction by definition, promptly formulate the communication protocol of the equipment complex that smart card and USB flash disk are formed, solve the problem that equipment complex that computing machine combines with smart card and USB flash disk communicates.
Technical scheme of the present invention is as follows: the method for a kind of smart card and USB flash disk equipment complex and compunication, comprise standard SCSI instruction 101, smart card instruction 103, host side 1, the computing machine of described host side 1 for having USB interface, and by internal memory 20, IO controller 30, flash memory 40, cryptographic coprocessor 50, smart card and USB flash disk equipment complex 2 that Z32UF safety governor 60 constitutes, described host side 1 interrelates by two kinds of SCSI instruction transmission numbers with described smart card and USB flash disk equipment complex 2, smart card operating system 203 according to the establishment of Java Card technical manual is installed on the described Z32UF safety governor 60 of described smart card and USB flash disk equipment complex 2, operation has smart card and USB flash disk equipment complex control program 201 on it, this program 201 is used for handling the described standard SCSI instruction 101 of storage, 2 of described host side 1 and described smart card and USB flash disk equipment complexes realize that first kind of instruction of data communication is described standard SCSI instruction 101,2 of described host side 1 and described smart card and USB flash disk equipment complexes realize that second kind of instruction of data communication is SCSI instruction 102, and described host side 1 with method and the step that described smart card and USB flash disk equipment complex 2 carry out data communication is:
1. at first to the data layout of second kind of SCSI instruction 102 of described smart card and USB flash disk equipment complex 2 definition, smartcard command instruction 103 packings and " data " of inserting standard SCSI instruction 101 are located, handle according to " order " mark in the smart card cue mark 104, send to smart card and USB flash disk equipment complex 2 then
2. utilize this second kind of SCSI instruction 102 simultaneously, realize the data communication between described host side 1 and described smart card and the USB flash disk equipment complex 2.
Described smart card and USB flash disk equipment complex control program 201 can be used to handle first kind of standard SCSI instruction 101 of storage, also can handle the second kind of SCSI instruction 102 that has comprised the smart card instruction.
Define described second kind of SCSI and instruct the process of 102 data layouts as follows,
1., the form of described standard SCSI instruction 101 is:
| The scsi command head | Data | Operating result |
Wherein " scsi command head " is the extraneous order data that transmits to equipment, and " data " part can be the extraneous data that send, and also can be the data that equipment returns to the external world,
2., the form of described smart card instruction 103 is:
| CLA | INS | P1 | P2 | Lc | Data | Le |
Wherein, " CLA " represented the order class, and " INS " represented instruction, and " P1 and P2 " represented parameter, " Lc " is " Data " numeric field data length, and " Data " is the data of " Lc " indication, and " Le " is the data length that the expectation smart card returns,
3., the form of described second kind of SCSI instruction 102 is as follows:
| The scsi command head | The data of second kind of SCSI instruction of mark 104+ smart card instruction 103=102 | Operating result |
Wherein " mark 104 " is smart card cue mark 104, and it is as follows to define its form:
| The mark title | Mark | Data |
| Order | { mark 1} | The command instruction data of smart card |
| Response | { mark 2} | The response instruction data of smart card |
| Status word | { mark 3} | The status word data of smart card |
Utilize this second kind of SCSI instruction 102, realize that the step of data communication between described host side 1 and described smart card and the USB flash disk equipment complex 2 is as follows:
1. described host side 1 sends the data that are labeled as " order ",
2. described host side 1 sends the data that are labeled as " response ", fetches response results,
3. described host side 1 sends the data that are labeled as " status word ", fetches status word.
1), described host side 1 sends the data that are labeled as " order ", described smartcard command instruction 103 is packaged into the data of described second kind of SCSI instruction 102, handle according to " order " mark in the described smart card cue mark 104, send to described smart card and USB flash disk equipment complex 2 then
2), described host side 1 sends the data that are labeled as " response " to described smart card and USB flash disk equipment complex 2, the processing of described smart card and USB flash disk equipment complex 2 response results, handle by the described Z32UF safety governor on described smart card and the USB flash disk equipment complex 2 60, the steps include:
1. mark response data, according in the described smart card cue mark 104 " response ＂ mark is handled,
2. the flag state word is handled according to " status word " mark in the described smart card cue mark 104,
3), described host side 1 sends the data that are labeled as " status word " to described smart card and USB flash disk equipment complex 2, described host side 1 obtains response data by described second kind of SCSI instruction 102, up to having got, the steps include:
If 1. exist, promptly obtain response data
2. obtain status word.
Owing to adopted above technical scheme, the present invention has following good effect:
(1) smart card of first smart card and USB flash disk being formed and the communication protocol of USB flash disk equipment complex define.
That (2) has realized carrying out between host side and equipment complex that smart card and USB flash disk constitute communicates by letter, and makes and utilizes the visit of smart card techniques control USB flash disk to become possibility.
Description of drawings
The physical arrangement synoptic diagram of Fig. 1-common U disk
The physical arrangement synoptic diagram of Fig. 2--smart card and USB flash disk equipment complex 2
The software layer aggregated(particle) structure synoptic diagram of Fig. 3--smart card and USB flash disk equipment complex
Fig. 4--host side 1 block diagram of communicating by letter with common U disk
Fig. 5--host side 1 and smart card communications block diagram
Fig. 6--host side 1 and the smart card block diagram of communicating by letter with USB flash disk equipment complex 2.
Fig. 7--host side 1 is by two kinds of SCSI instructions and smart card and USB flash disk equipment complex 2 communication scheme.
Fig. 8--host side 1 is to three kinds of schematic diagram datas of smart card and 2 transmissions of USB flash disk equipment complex.
The form of first kind of standard SCSI instruction 101 is as follows:
| The scsi command head | Data | Operating result |
The form of smart card instruction 103 is as follows:
| CLA | INS | P1 | P2 | Lc | Data | Le |
The form of second kind of SCSI instruction (102) is as follows:
| The scsi command head | The data of second kind of SCSI instruction of mark 104+ smart card instruction 103=102 | Operating result |
Wherein " mark 104 " is smart card cue mark (104), and it is as follows to define its form:
| The mark title | Mark | Data |
| Order | { mark 1} | The command instruction data of smart card |
| Response | { mark 2} | The response instruction data of smart card |
| Status word | { mark 3} | The status word data of smart card |
In the accompanying drawing, the 1--host side, the computing machine that representative has USB interface, as PC, 2--smart card and USB flash disk equipment complex, the 20--internal memory, the 30--IO controller, the 40--flash memory, 50--can support RSA, DH, ElGamal, ECC public key algorithm, the cryptographic coprocessor of the cryptographic coprocessor of DES, 3DES, AES symmetric cryptographic algorithm and third party's cryptographic algorithm, 60--Z32UF safety governor, 201--smart card and USB flash disk equipment complex control program, 203--is according to the smart card operating system of Java Card technical manual establishment.
Embodiment
Accompanying drawing 1 expression common U disk mainly is made of four physical locations: Flash controller 10, internal memory 20, IO controller 30 and flash memory 40.
Accompanying drawing 2 is physical arrangement synoptic diagram of smart card of the present invention and USB flash disk equipment complex.
Similar with common U disk, the physical composition of smart card and USB flash disk equipment complex also is to be made of four essential elements, in addition also have the cryptographic coprocessor 50 that to support RSA, DH, ElGamal, ECC public key algorithm, DES, 3DES, AES symmetry algorithm and third party's cryptographic algorithm, and Flash controller 10 is replaced by 32 Z32UF safety governors 60.
The system of operation and common U disk is complete different in Z32UF safety governor 60, outside the control program that has kept the common U disk use, also comprise a smart card operating system 203 according to the establishment of Java Card technical manual, it can finish encryption and decryption computing (checking and signature) under the help of cryptographic coprocessor 50.Operation has smart card and USB flash disk equipment complex control program 201, this program 201 can be used to handle first kind of standard SCSI instruction 101 of storage on this smart card operating system 203, also can handle the second kind of SCSI instruction 102 that has comprised the smart card instruction.
In the PC system, communicating by letter of main frame and USB flash disk carried out according to standard SCSI (SmallComputer Serial Interface) instruction 101, as shown in Figure 4.
But smart card and USB flash disk equipment complex also receive other steering orders that application program sends except the instruction that receives operating system.These instructions are that (Application Protocol Data Unit: Application Protocol DataUnit) encapsulate, accompanying drawing 5 is host side 1 and smart card communications block diagram with intelligent card data form APDU.
Z32UF safety governor 60 in smart card and the USB flash disk equipment complex 2 comprises smart card controller and USB controller, it also is a kind of smart card controller, so need be when main frame and Z32UF safety governor 60 communicate, smart card communications data (APDU) are packaged into second kind of scsi data packet format, could realize the purpose of external system control Z32UF safety governor 60 like this.
Accompanying drawing 6 is host side 1 and the smart card block diagram of communicating by letter with USB flash disk equipment complex 2, accompanying drawing 7 is that host side 1 is passed through two kinds of SCSI command communication synoptic diagram with smart card and USB flash disk equipment complex 2, and accompanying drawing 8 is host side 1 three kinds of schematic diagram datas to smart card and 2 transmissions of USB flash disk equipment complex.
Defining second kind of SCSI instructs the process of 102 data layouts as follows:
1., standard SCSI instructs 101 data layouts as follows:
| The scsi command head | Data | Operating result |
2., the form of smart card instruction 103 is as follows:
| CLA | INS | P1 | P2 | Lc | Data | Le |
3., second kind of SCSI instructs 102 data layouts to be:
| The scsi command head | The data of { mark 104}+{ intelligent card data unit }=second kind of SCSI instruction | Operating result |
4., wherein, mark 104 is defined as follows:
| The mark title | Mark | Data |
| Order | { mark 1} | The command instruction data of smart card |
| Response | { mark 2} | The response instruction data of smart card |
| Status word | { mark 3} | The status word data of smart card |
1. host side 1 sends the data that are labeled as " order " to smart card equipment complex 2,
2. host side 1 sends the data that are labeled as " response " to smart card equipment complex 2, fetches response results,
3. host side 1 sends the data that are labeled as " status word " to smart card equipment complex 2.
Smart card and USB flash disk equipment complex are passive equipment, promptly can not return response results to main frame on one's own initiative.Can only send the instruction fetching result who is labeled as " response " and " status word " on one's own initiative by main frame.
Concrete steps are:
1), smartcard command instruction 103 packings and " data " of inserting standard SCSI instruction 101 are located,, send to smart card and USB flash disk equipment complex 2 then according to " order " mark processing in the smart card cue mark 104,
2), the processing of smart card and USB flash disk equipment complex 2 response results, handle by the Z32UF safety governor on smart card and the USB flash disk equipment complex 2 60, the steps include:
1. mark response data, according in the smart card cue mark 104 " response ＂ mark is handled,
2. the flag state word is handled according to " status word " mark in the smart card cue mark 104,
3), obtain response data,, the steps include: up to having got by second kind of SCSI instruction 102
1. obtain response data, (if existence)
2. obtain status word.
Send one " select File " order with host side 1 to smart card and USB flash disk equipment complex 2 below, and send " response ", " status word " and identify and obtain the response data of smart card and USB flash disk equipment complex 2 and the process of status word is an example, implementation process of the present invention is described:
Define three marks, respectively corresponding " order ", " response " and " status word " three marks, they are:
Command Flags 0x01
Response flag 0x02
Status word mark 0x03
Correspondence markings is that the APDU103 of " select File " instructs as follows for the data of " order ":
| CLA | INS | P1 | P2 | Lc | Data | Le |
| 0x00 | 0xa4 | 0x04 | 0x00 | 0x02 | 0x3f01 | Do not have |
Wherein Data partly represents an existing file identification (0x3f01) in smart card and the USB flash disk equipment complex.
Data content according to described second kind of SCSI order format, 102 definition transmissions: 0x0100a40400023f01 sends to smart card and USB flash disk equipment complex 2 with these data by SCSI Passthrough mode then.
The present invention has formulated first communication protocol of intelligent card APDU has been packaged into scsi data newspaper form, the communication protocol of having finished smart card and USB flash disk equipment complex defines, formulated the SCSI instruction that comprises the smart card instruction, promptly second kind of SCSI instructs 102 data layouts, with the data communication that realizes that host side and smart card and USB flash disk equipment complex carry out, make and utilize the visit of smart card techniques control USB flash disk to become possibility.
Hardware product among the present invention is homemade commercially available prod.With the same or analogous technical scheme of content of the present invention, should be within the protection domain of this patent.
Claims (5)
1, the method of a kind of smart card and USB flash disk equipment complex and compunication, comprise standard SCSI instruction 101, smart card instruction 103, host side (1), the computing machine of described host side (1) for having USB interface, and by internal memory (20), I0 controller (30), flash memory (40), cryptographic coprocessor (50), smart card and USB flash disk equipment complex (2) that Z32UF safety governor (60) constitutes, described host side (1) interrelates by two kinds of SCSI instruction transmission data with described smart card and USB flash disk equipment complex (2), smart card operating system (203) according to the establishment of Java Card technical manual is installed on the described Z32UF safety governor (60) of described smart card and USB flash disk equipment complex (2), operation has smart card and USB flash disk equipment complex control program (201) on it, this program (201) is used for handling the described standard SCSI instruction 101 of storage, the first kind of instruction that realizes data communication between described host side (1) and described smart card and USB flash disk equipment complex (2) is described standard SCSI instruction 101, it is characterized in that: the second kind of instruction that realizes data communication between described host side (1) and described smart card and USB flash disk equipment complex (2) is SCSI instruction 102, and described host side (1) with method and step that described smart card and USB flash disk equipment complex (2) carry out data communication is:
1. at first to the data layout of second kind of SCSI instruction 102 of described smart card and USB flash disk equipment complex (2) definition, smartcard command instruction 103 packings and " data " of inserting standard SCSI instruction 101 are located, handle according to " order " mark in the smart card cue mark 104, send to smart card and USB flash disk equipment complex (2) then
2. utilize this second kind of SCSI instruction 102 simultaneously, realize the data communication between described host side (1) and described smart card and the USB flash disk equipment complex (2).
2, the method for a kind of smart card as claimed in claim 1 and USB flash disk equipment complex and compunication, it is characterized in that: described smart card and USB flash disk equipment complex control program (201) can be used to handle first kind of standard SCSI instruction 101 of storage, also can handle the second kind of SCSI instruction 102 that has comprised the smart card instruction.
3, the method for a kind of smart card as claimed in claim 1 and USB flash disk equipment complex and compunication is characterized in that: defines described second kind of SCSI and instructs the process of 102 data layouts as follows,
1., the form of described standard SCSI instruction 101 is:
Wherein " scsi command head " is the extraneous order data that transmits to equipment, and " data " part can be the extraneous data that send, and also can be the data that equipment returns to the external world,
2., the form of described smart card instruction 103 is:
Wherein, " CLA " represented the order class, and " INS " represented instruction, and " P1 and P2 " represented parameter, " Lc " is " Data " numeric field data length, and " Data " is the data of " Lc " indication, and " Le " is the data length that the expectation smart card returns,
3., the form of described second kind of SCSI instruction 102 is as follows:
Wherein " mark 104 " is smart card cue mark 104, and it is as follows to define its form:
4, the method for a kind of smart card as claimed in claim 3 and USB flash disk equipment complex and compunication, it is characterized in that: utilize this second kind of SCSI instruction 102, realize that the step of data communication between described host side (1) and described smart card and the USB flash disk equipment complex (2) is as follows:
1. described host side (1) sends the data that are labeled as " order ",
2. described host side (1) sends the data that are labeled as " response ", fetches response results,
3. described host side (1) sends the data that are labeled as " status word ", fetches status word.
5, the method for a kind of smart card as claimed in claim 4 and USB flash disk equipment complex and compunication is characterized in that:
1), described host side (1) sends the data that are labeled as " order ", described smartcard command instruction 103 is packaged into the data of described second kind of SCSI instruction 102, handle according to " order " mark in the described smart card cue mark 104, send to described smart card and USB flash disk equipment complex (2) then
2), described host side (1) sends the data that are labeled as " response " to described smart card and USB flash disk equipment complex (2), the processing of described smart card and USB flash disk equipment complex (2) response results, handle by the described Z32UF safety governor (60) on described smart card and the USB flash disk equipment complex (2), the steps include:
1. mark response data, according in the described smart card cue mark 104 " response ＂ mark is handled,
2. the flag state word is handled according to " status word " mark in the described smart card cue mark 104,
3), described host side (1) sends the data that are labeled as " status word " to described smart card and USB flash disk equipment complex (2), described host side (1) obtains response data by described second kind of SCSI instruction 102, up to having got, the steps include:
If 1. exist, promptly obtain response data
2. obtain status word.
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| CNB2007100003283A CN100504830C (en) | 2007-01-08 | 2007-01-08 | Smart card and USB combined equipment and method for communication with computer |
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| CN102592085B (en) | 2011-12-27 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of wireless communication terminal and development method for safe operation |
| CN103874054B (en) * | 2012-12-07 | 2017-09-15 | 中国移动通信集团公司 | Data transmission method and mobile terminal, SIM card |
| CN106708763A (en) * | 2016-08-31 | 2017-05-24 | 北京亮亮视野科技有限公司 | Head-mounted display device and data transmission system of intelligent host |
| CN108347440B (en) * | 2018-02-07 | 2020-08-18 | 飞天诚信科技股份有限公司 | Method and device for enabling SCSI equipment to support smart card application |
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| CN103858116A (en) * | 2011-08-09 | 2014-06-11 | Lsi公司 | I/o device and computing host interoperation |
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