CN105426806A - Reader supporting multiple encryption modes - Google Patents
Reader supporting multiple encryption modes Download PDFInfo
- Publication number
- CN105426806A CN105426806A CN201510977123.5A CN201510977123A CN105426806A CN 105426806 A CN105426806 A CN 105426806A CN 201510977123 A CN201510977123 A CN 201510977123A CN 105426806 A CN105426806 A CN 105426806A
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- Prior art keywords
- interface
- encryption
- module
- fpga
- encrypting module
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10257—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for protecting the interrogation against piracy attacks
Abstract
The invention provides a reader supporting multiple encryption modes, which comprises a master control part, a data processing part, an encryption module, a radio frequency circuit and an external interface, wherein the master control part is connected to the data processing part and the external interface, and the data processing part is connected to the encryption module and the radio frequency circuit; the encryption module comprises two parts including a safety module and a PSAM card, an interface part of the encryption module comprises a PSAM and ESAM interface, a safety module interface, a FPGA and a power source interface and is used to install and realize compatibility of the PSAM, the ESAM and the safety module, and other multiple types of data encryption units can also be installed; and the FPGA can realize encryption and decryption operations to the corresponding safety module or the encryption card in the encryption module according to different selections of a protocol. The reader supporting the multiple encryption modes provided by the invention can realize the simultaneous compatibility of the multiple encryption modes, so that a device can be used to complete the compatibility of the multiple types of protocols.
Description
Technical field
The invention belongs to radio electronic label technical field, especially relate to a kind of reader supporting multiple cipher mode.
Background technology
In intelligent transportation field, reader is widely used as main recognizing apparatus.At present, the reader on market and label mainly use in ISO/IEC18000-6B, ISO/IEC18000-6C, national standard " radio-frequency (RF) identification 800/900MHz air interface protocol ", industry standard protocol one or more.Deduct fees and the problem such as privacy owing to relating in the use procedure of reality, so need to ensure the security of data in transmitting procedure and integrality.The reader of early stage RFID technique mainly uses ISO/IEC18000-6B, ISO/IEC18000-6C agreement, domestic producer uses PSAM (point of sales terminal secure access module) or ESAM (embedded safe control module) to carry out data encryption usually, the national standard agreement released by national Ministry of Industry and Information of current implementation is also the mode mainly adopting PSAM or ESAM to encrypt.
Along with the progress of technology and the development of industry, state ministry of public security take the lead release industry standard have employed a kind of brand-new cipher mode, the technology such as its secret algorithm of state adopted, key dispersing mode and data check are different from traditional PSAM and ESAM mode completely.Industry code requirements use safety module carries out the framing etc. of the certification of read-write equipment, the dispersion of key and data, interface mode and the intrasystem effect of security module are different from PSAM and ESAM card all completely, and this just proposes new requirement to the design of traditional read-write equipment reader.
But, because market has been issued in a large number the label adopting ISO/IEC18000-6B, ISO/IEC18000-6C and national standard before, it is unpractical that unification changes industry standard into, so the phenomenon that multiple standards coexists is long-standing, this just proposes new requirement-can simultaneously compatible various protocols to recognizing apparatus reader.
Summary of the invention
In view of this, the present invention is intended to propose a kind of reader supporting multiple cipher mode, can simultaneously compatible multiple cipher mode, uses an equipment can complete the compatibility of various protocols.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of reader supporting multiple cipher mode, comprise main control part, data processing section, encrypting module, radio circuit and external interface, described main control part connection data processing section and external interface, data processing section connects encrypting module and radio circuit; Described data processing section adopts FPGA, FPGA to be mainly connected with radio circuit with encrypting module, and FPGA mainly carries out base band signal process, completes the communication of encrypting module simultaneously, completes encryption and verifying function; Described encrypting module comprises security module and PSAM card two parts, the interface section of encrypting module comprises PSAM and ESAM interface, security module interface, FPGA and power interface, be used for compatible PSAM, ESAM and security module are installed, other several data ciphering units can be installed simultaneously; Described FPGA can carry out the operation of encryption and decryption according to the different choice of agreement security module corresponding to encrypting module or encrypted card.
Further, described main control part comprises CPU and EPLD that signal connects, and CPU completes the control of complete machine and completes the communication with outside by external interface, and EPLD mainly completes distribution and the scheduling of data.
Relative to prior art, the present invention has following advantage:
The present invention supports that the reader of multiple cipher mode can solve the single problem of functions of the equipments.By encrypting module interface compatible used in hardware design, realize setting up the standby compatibility to all labels, adapt to sight complicated on current road; Greatly reduce cost, it also avoid the recognition Problem-Error that the interference between equipment causes simultaneously.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is for supporting the signal wiring schematic diagram of the reader of multiple cipher mode described in the embodiment of the present invention;
Fig. 2 is the encrypting module interface diagram described in the embodiment of the present invention;
Fig. 3 is for supporting the realization flow block diagram of the reader of multiple cipher mode described in the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of reader supporting multiple cipher mode, as shown in Figure 1, comprise main control part, data processing section, encrypting module, radio circuit and external interface, described main control part connection data processing section and external interface, data processing section connects encrypting module and radio circuit.
Described main control part comprises CPU and EPLD that signal connects, and CPU completes the control of complete machine and completes the communication with outside by external interface, and EPLD mainly completes distribution and the scheduling of data.
Described data processing section adopts FPGA, FPGA to be mainly connected with radio circuit with encrypting module, and FPGA mainly carries out base band signal process, completes the communication with encrypting module simultaneously, completes the functions such as encryption and verification; The realization of the multiple encryption function of multi-protocols can be completed by high-speed digital signal; FPGA is parallel processing device, can process multiple process when internal resource abundance simultaneously.
Described encrypting module mainly comprises security module and PSAM card two parts, as shown in Figure 2, the interface section of encrypting module comprises PSAM and ESAM interface, security module interface, FPGA and power interface, be used for compatible PSAM, ESAM and security module are installed, other several data ciphering units can be installed simultaneously; The FPGA of described data processing section can carry out the operation of encryption and decryption according to the different choice of agreement security module corresponding to encrypting module or encrypted card.
Described radio circuit process forward direction and reverse signal, complete the modulation and demodulation of data.
The present invention supports that the reader of multiple cipher mode can the installation of compatible multiple encrypted card and security module by the interface circuit of encrypting module, can support the switching of various protocols simultaneously.
Conclude the business each time and all initiated by CPU, EPLD carries out instruction distribution, and FPGA completes the data encryption process with encrypting module, after completing the work such as framing, baseband signal is passed to radio circuit and modulates, finally by aerial radiation to spatial field.
After label receives the specific carriers of reader transmission, specific reverse data coding can be returned after inside processes, carry out demodulation by radio circuit after reader antenna receives and baseband signal is sent to FPGA, FPGA is by turning back to CPU by data after the deciphering of the data that communicated with encrypting module, and CPU completes to report and namely terminates a process of exchange.
As shown in Figure 3, the present invention supports that the specific implementation step of the reader of multiple cipher mode is as follows:
Step 1: open reader selection protocol type, reader sends corresponding data according to protocol type, and protocol type can be set to single-mode, also can be set to various protocols circulation pattern;
Step 2: according to the protocol type determined, ciphering unit corresponding in Choice encryption module is encrypted, and is sent to radio circuit forward link by after the data framing after encryption;
Step 3: after radio circuit forward link carries out carrier modulation, sends signal to spatial field and waits for reverse signal;
Step 4: determine whether to receive reverse data, if do not have data to return, gets back to step 1, if there are data to return, judges use safety module ESAM card or PSAM card is decrypted according to the information type that receives;
Information source after deciphering is reported server by step 5:CPU;
Step 6: new round transaction flow from newly.
Due to inconsistent on hardware interface and communication mode of PSAM card or ESAM card and security module, consider so compatibility will be carried out when carrying out reader hardware design, software also to realize the function that multi-protocols switch, ensure that reader can complete the transaction of various protocols label.Adopt the reader after compatible design, just by the switching of remote control software version after project plan terminates, thus the transaction flow to different agreement can be completed, also can use self-adapted protocol algorithm, complete corresponding label transaction.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. support the reader of multiple cipher mode for one kind, it is characterized in that: comprise main control part, data processing section, encrypting module, radio circuit and external interface, described main control part connection data processing section and external interface, data processing section connects encrypting module and radio circuit;
Described data processing section adopts FPGA, FPGA to be mainly connected with radio circuit with encrypting module, and FPGA mainly carries out base band signal process, completes the communication of encrypting module simultaneously, completes encryption and verifying function;
Described encrypting module comprises security module and PSAM card two parts, the interface section of encrypting module comprises PSAM and ESAM interface, security module interface, FPGA and power interface, be used for compatible PSAM, ESAM and security module are installed, other several data ciphering units can be installed simultaneously; Described FPGA can carry out the operation of encryption and decryption according to the different choice of agreement security module corresponding to encrypting module or encrypted card.
2. the reader of the multiple cipher mode of support according to claim 1, it is characterized in that: described main control part comprises CPU and EPLD that signal connects, CPU completes the control of complete machine and completes the communication with outside by external interface, and EPLD mainly completes distribution and the scheduling of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977123.5A CN105426806A (en) | 2015-12-21 | 2015-12-21 | Reader supporting multiple encryption modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977123.5A CN105426806A (en) | 2015-12-21 | 2015-12-21 | Reader supporting multiple encryption modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105426806A true CN105426806A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977123.5A Pending CN105426806A (en) | 2015-12-21 | 2015-12-21 | Reader supporting multiple encryption modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105426806A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110363041A (en) * | 2019-07-02 | 2019-10-22 | 深圳华视电子读写设备有限公司 | A kind of card reader of ID card of signal stabilization transmission |
-
2015
- 2015-12-21 CN CN201510977123.5A patent/CN105426806A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110363041A (en) * | 2019-07-02 | 2019-10-22 | 深圳华视电子读写设备有限公司 | A kind of card reader of ID card of signal stabilization transmission |
| CN110363041B (en) * | 2019-07-02 | 2022-11-11 | 深圳华视电子读写设备有限公司 | Identity card reader with stable signal transmission |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |