CN201054152Y - A RF electronic label - Google Patents
A RF electronic label Download PDFInfo
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- CN201054152Y CN201054152Y CNU2007201180666U CN200720118066U CN201054152Y CN 201054152 Y CN201054152 Y CN 201054152Y CN U2007201180666 U CNU2007201180666 U CN U2007201180666U CN 200720118066 U CN200720118066 U CN 200720118066U CN 201054152 Y CN201054152 Y CN 201054152Y
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Abstract
The utility model discloses a radio frequency electronic tag, which comprises a command processing unit used for receiving a signal command after being validated and controlling the reading and writing of information, an uplink cyclic redundancy code verification unit and an uplink coding unit used for verifying and coding a data which is sent to a reading radio frequency accepting module, a random number generator connected with the command processing unit and used for generating cryptographic numbers, and a hash processing unit used for operating the hash encryption operation to the data which is sent to the reading radio frequency accepting module. Because the utility model arranges the random number generator and the hash processing unit in the radio frequency electronic tag, the tag can sectionalize and process content and information required to be responded at random, thereby ensuring the privacy of the transported content, preventing from tracking, and realizing the fast retrieving of the data information.
Description
Technical field
The utility model relates to a kind of radio electronic label, in particular a kind of can the encryption to improve the radio electronic label of security the data segmentation.
Background technology
Radio RF recognition technology (Radio Frequency Idenfication, RFID) be a kind of non-contacting automatic identification technology, its ultimate principle is to utilize the transport property of radiofrequency signal and space coupling (inductance or electromagnetic coupled) or radar reflection, realizes being identified the automatic identification of object.
Rfid system comprises electronic tag and reader two parts at least.Electronic tag is the data carrier of radio-frequency recognition system, and electronic tag is made up of label antenna and label special chip.According to the difference of electronic tag power supply mode, electronic tag can be divided into active electronic label (Active tag), passive electronic label (Passive tag) and half passive electronic label (Semi-passive tag).Battery is housed in the active electronic label, and passive RF label does not have internal battery, and half passive electronic label (Semi-passive tag) part relies on battery operated.
RFID reader (read write line) carries out radio communication by antenna and RFID electronic tag, can realize reading or write operation tag recognition sign indicating number and internal storage data.Typical reader includes high-frequency model (transmitter and receiver), control module and reader antenna.
In the prior art, the inquiry of radio electronic label (RFID tag) and corresponding reader and replying is mostly with the clear-text way Data transmission.These transfer modes expressly are because not encrypted, and its content can be eavesdropped, and are unfavorable for the commercial competition of businessman and to the privacy protection of consumer or businessman.Even expressly through encrypting, also all be to produce fixedly ciphertext, can be tracked, be unfavorable for consumer's secret protection.
Therefore, there is defective in prior art, and awaits improving and development.
The utility model content
The purpose of this utility model is to provide a kind of radio electronic label, can not prevent the problem of following the tracks of for the radio electronic label that overcomes prior art, by randomizer and hash hash processing unit are set in radio electronic label, the content information that this label can be replied needs carries out the segmentation random processing, thereby reaching content with simple hardware maintains secrecy, the anti-tracking, and the purpose that can retrieve fast.
The technical solution of the utility model comprises:
A kind of radio electronic label, it can carry out radio-frequency communication transmission data with a reader, and comprises a descending decoding unit, is used for the signal that receives is decoded; One descending CRC authentication unit is used for decoded signal is verified; One instruction process unit, the signal instruction after being used to accept to verify and the read-write of control information; One nonvolatile memory is accepted the control of described instruction process unit, is used for the storage tags information of identification code; And a uplink cycle redundanat code verification authentication unit and a up coding unit are used for the data that send to described reader are carried out verification and coding; Wherein, described instruction process unit also control linkage has a tandom number generator, is used to produce the random number of encryption; And, a hash hash processing unit, the data that are used to utilize described random number will send to described reader are carried out the hash cryptographic calculation.
Described radio electronic label, wherein, described instruction process unit is used for that also the data that send to described reader are carried out segmentation encrypts, and forms the multiple segment data of encrypting after the segmentation.
Described radio electronic label, wherein, the data that described instruction process unit is used for sending to described reader are divided at least two sections, and after carrying out the hash cryptographic calculation respectively with described random number, send to described reader together with described random number.
A kind of radio electronic label provided by the utility model, owing in this radio electronic label, be provided with randomizer and hash hash processing unit, the content information that this label can be replied needs carries out the segmentation random processing, guaranteed maintaining secrecy of transmission content, prevent tracking, and realized quick retrieval data message.
Description of drawings
Fig. 1 is the systematic schematic diagram of label of the present utility model and reader and back-end data base;
Fig. 2 is a digital baseband circuit schematic diagram of the present utility model.
Wherein among the figure, label 1, RFID label, 2, the RFID reader, 3, RFID back-end data base, 4, descending decoding unit, 5, descending CRC (CRC) checking, 6, NVM: nonvolatile memory, 7, up CRC (CRC) checking, 8, up coding unit, 9, instruction process unit, 10, hash hash processing unit, 11, randomizer, 12, the anti-processing unit that collides.
Embodiment
Below in conjunction with accompanying drawing, will be described in more detail each preferred embodiment of the present utility model.
Radio electronic label of the present utility model is to have added tandom number generator 11 and a hash hash processing unit 10 on the radio electronic label basis of prior art, radio electronic label as shown in Figure 2 is radio-frequency receiving-transmitting data between realization and the reader, it comprises a descending decoding unit 4, communication connects descending CRC (CRC) authentication unit 5, connect an instruction process unit 9 afterwards, this instruction process unit 9 is used for control and the data processing to whole radio electronic label.This instruction process unit 9 connects control a nonvolatile memory NVM unit 6, is used to store the tag recognition sign indicating number of this radio electronic label and the data content of other records.Be the read write command of response reader, described instruction process unit 9 also communication is connected with up CRC (CRC) authentication unit 7 and up coding unit 8.
In radio electronic label internal circuit of the present utility model, described instruction process unit also is provided with and is connected with at least one tandom number generator 11 and a hash hash processing unit 10, and the anti-processing unit 12 that collides, be used to judge whether upward signal the collision of communication simultaneously can take place with other label.
Radio electronic label of the present utility model produces a random number r earlier when the inquiry of replying reader, the label substance that need are replied divides two parts or many parts again.Again this random number r is imported hash hash processing unit with a part of content of this label such as " catalog number (Cat.No.) Px ", produce a hash value A.Again with another part of this random number r and this label such as " article number T
IDi" import hash hash processing unit together, produce the 2nd hash value B.Label will (B) reader be given in response together for r, A then.Such value is to maintain secrecy and at random, has reached that content is maintained secrecy and anti-purpose of following the tracks of.
Reader passes to back-end data base with this value subsequently, database calculates first's content hash value of the label in random number r and all databases, compare with a described hash value A, up to finding all to have the population of tags of identical first's content.Same again, database is with the second portion content of each entry in this population of tags, carry out the computing of hash value with described random number r, hash value after the computing and described the 2nd hash value B are compared, if content identical then that just found first and second portion all to meet, record project just to be retrieved.So just retrieved needed label substance.
The segmentation adopted in the utility model radio electronic label retrieval need not be compared the content of all parts of all records, but calculate and compare data stage by stage, can reduce greatly the database retrieval time, especially needing under the situation of data encryption, this kind segmentation retrieval mode effectively reduces retrieval time.
With 32 label substances is example, if not segmentation retrieval, database will need to search for 2
32Piece label needs search 2 in average
32/ 2=2
31Piece just can find searching object.If be divided into two sections retrievals, respectively account for 16 such as " catalog number (Cat.No.) " and " article number ", then database retrieval goes out correct " article number " palpus search 2
16 Piece label counts 2 with average
16/ 2=2
15Piece.Retrieving correct " catalog number (Cat.No.) " again must search 2
16 Piece label counts 2 with average
16/ 2=2
15Piece.Add up to 2*2
15=2
16 Piece.Retrieval amount 2 with not segmentation
31Piece compare, segmentation retrieval amount is index decreased.Therefore segmentation is many more, and it is fast more to descend.Thereby can reach the purpose that label is retrieved fast.
Represented the secondary label reading process between the utility model radio electronic label and the reader as shown in Figure 1.RFID reader 2 at first sends the request of reading to the utility model RFID label 1.After the utility model RFID label 1 is received request, produce a random number r, again with first's content of this random number r and this label such as " catalog number (Cat.No.) P
x" be input to described hash hash processing unit together, produce a hash value A.Again with another part of this random number r and this label such as " article number T
IDi" import hash hash processing unit together, produce the 2nd hash value B.Label will (B) reader be given in response together for r, A then.
Described RFID reader 2 should respond that (r, A B) pass to back-end data base 3.Back-end data base 3 compares the catalog number (Cat.No.) P of all labels in the storehouse one by one
xWith the hash value of random number r generation, up to finding identical catalog number (Cat.No.) P with a hash value A
xSimilarly, back-end data base 3 compares the article number T of all labels in the storehouse one by one in the label record identical with a hash value A
IDiWith the hash value of random number r generation, up to finding identical article number T with the 2nd hash value B
IDiSo search complete.
As shown in Figure 2, digital baseband circuit schematic diagram for the utility model radio electronic label, wherein descending decoding unit 4 is received radio frequency and is accepted the electric signal that module receives, decode according to the specified coding mode, then decoded information is passed to descending CRC CRC authentication unit 5.This descending CRC authentication unit such as authorization information are errorless, then pass to described instruction process unit 9.Described instruction process unit 9 requires tandom number generator 11 to produce a random number, obtains a part of content such as the catalog number (Cat.No.) of this label again in the NVM nonvolatile memory, delivers to hash hash processing unit 10 with random number and produces corresponding hash value.Described anti-collision processing unit 12 will judge whether upward signal the collision of communication simultaneously can take place with other label.If collide, then will go up line time and postpone a period of time again.If do not collide, then the hash value that hash hash processing unit 10 is produced is delivered to up CRC CRC authentication unit 7, after up coding unit 8 is handled, passes to the radiofrequency emitting module of reader again.So promptly finished and reader between data transmission.
Radio electronic label of the present utility model has increased randomizer and hash hash processing unit on the basis of prior art circuits, can with and reader between the communication data carry out transmitting behind segmentation and the random number encryption, even concrete data can't be followed the tracks of and obtain to intercepted data also, therefore guaranteed the privacy of data transmission, and use radio electronic label of the present utility model, because database adopts segmentation to encrypt and the retrieval comparison, data processing speed is fast.
Should be understood that; the description of above-mentioned specific embodiment at radio electronic label of the present utility model is comparatively detailed; can not therefore think the restriction to scope of patent protection of the present utility model, scope of patent protection of the present utility model should be as the criterion with claims.
Claims (1)
1. radio electronic label, it can carry out radio-frequency communication transmission data with a reader, and comprises a descending decoding unit, is used for the signal that receives is decoded; One descending CRC authentication unit is used for decoded signal is verified; One instruction process unit, the signal instruction after being used to accept to verify and the read-write of control information; One nonvolatile memory is accepted the control of described instruction process unit, is used for the storage tags information of identification code; And a uplink cycle redundanat code verification authentication unit and a up coding unit are used for the data that send to described reader are carried out verification and coding; It is characterized in that described instruction process unit also control linkage has a tandom number generator, is used to produce the random number of encryption; And, a hash hash processing unit, the data that are used to utilize described random number will send to described reader are carried out the hash cryptographic calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201180666U CN201054152Y (en) | 2007-01-13 | 2007-01-13 | A RF electronic label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201180666U CN201054152Y (en) | 2007-01-13 | 2007-01-13 | A RF electronic label |
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| Publication Number | Publication Date |
|---|---|
| CN201054152Y true CN201054152Y (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201180666U Expired - Fee Related CN201054152Y (en) | 2007-01-13 | 2007-01-13 | A RF electronic label |
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| Country | Link |
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| CN (1) | CN201054152Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794402B (en) * | 2010-02-09 | 2012-08-22 | 南京大学 | Wireless ultrahigh-frequency radio-frequency identification system and method thereof for resisting invalid quantity statistical attack |
| CN103440548A (en) * | 2013-08-13 | 2013-12-11 | 北京科技大学 | Method for converting radio frequency label into two-dimensional codes |
| CN105208036A (en) * | 2015-10-10 | 2015-12-30 | 成都携恩科技有限公司 | Individual information protection method under big data background |
| CN111753937A (en) * | 2020-06-22 | 2020-10-09 | 北京理工大学 | RFID (radio frequency identification) label rapid detection method and system based on multi-label |
-
2007
- 2007-01-13 CN CNU2007201180666U patent/CN201054152Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794402B (en) * | 2010-02-09 | 2012-08-22 | 南京大学 | Wireless ultrahigh-frequency radio-frequency identification system and method thereof for resisting invalid quantity statistical attack |
| CN103440548A (en) * | 2013-08-13 | 2013-12-11 | 北京科技大学 | Method for converting radio frequency label into two-dimensional codes |
| CN103440548B (en) * | 2013-08-13 | 2016-06-29 | 北京科技大学 | A kind of radio-frequency (RF) tag turns the method for Quick Response Code |
| CN105208036A (en) * | 2015-10-10 | 2015-12-30 | 成都携恩科技有限公司 | Individual information protection method under big data background |
| CN105208036B (en) * | 2015-10-10 | 2018-05-18 | 成都携恩科技有限公司 | A kind of personal information protecting method under big data background |
| CN111753937A (en) * | 2020-06-22 | 2020-10-09 | 北京理工大学 | RFID (radio frequency identification) label rapid detection method and system based on multi-label |
| CN111753937B (en) * | 2020-06-22 | 2021-09-03 | 北京理工大学 | RFID (radio frequency identification) label rapid detection method and system based on multi-label |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ZHONGKE YUCHENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN XIANJIN TECHNOLOGY ACADEME Effective date: 20100129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: Room B110, Shenzhen Institute of advanced technology, A1 District, Chengdong District, Nanshan District University, Guangdong, Shenzhen 518000, China Patentee after: Shenzhen Zhongke Breeding Technology Co., Ltd. Address before: A, Nanshan Medical Instrument Industrial Park, No. 1019 Nanhai Road, Shekou, Guangdong, Shenzhen, Nanshan District, China: 518067 Patentee before: Shenzhen Advanced Technology Research Inst. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20100220 |