CN106685957B - A kind of encryption method of label data, decryption method, apparatus and system - Google Patents
A kind of encryption method of label data, decryption method, apparatus and system Download PDFInfo
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- CN106685957B CN106685957B CN201611234722.9A CN201611234722A CN106685957B CN 106685957 B CN106685957 B CN 106685957B CN 201611234722 A CN201611234722 A CN 201611234722A CN 106685957 B CN106685957 B CN 106685957B
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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
- H04L63/0435—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 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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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
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/80—Wireless
- H04L2209/805—Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
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Abstract
The invention belongs to label data encryption and decryption technique fields, provide the encryption method, decryption method, apparatus and system of a kind of label data.It is summed by each byte to label data and determines the corresponding verification call number of label data, and the corresponding check bit data of verification call number are searched from verification tables of data, label data and check bit data are then obtained into encryption label data with preset-key progress XOR operation and are sent；It is obtained including label data and the verification label data for verifying data by receiving end after receiving encryption label data with preset-key progress XOR operation, then the corresponding verification call number of label data is determined according to the sum of each byte of label data, the corresponding data of verification call number are searched from checklist, when the corresponding data of verification call number are consistent with verification data, that is, it can determine that label data is correct label data.Therefore, the present invention verifies label data using check bit, and the anti-interference ability of label data can be improved.
Description
Technical field
The invention belongs to label data encryption and decryption technique field more particularly to a kind of encryption methods of label data, solution
Decryption method, apparatus and system.
Background technique
Radio frequency identification (Radio Frequency Identification, RFID) technology, is that one kind passes through radio
Number identification specific objective simultaneously reads and writes the communication technology of related data.Label and base station are as the data transmitting in Radio Frequency Identification Technology
And reception device, together constitute radio-frequency recognition system.Label launches outward label data as data sending apparatus, and base station
The label data of label transmitting is received as data sink.Wireless communication modes, mark are used in view of radio-frequency recognition system
The safety of label data just seems abnormal important, and therefore, the mode that existing label generallys use encryption emits label data.But
It is that the cipher mode of existing label data is easy to appear data corruption and data in the transmitting and receive process of label data
The phenomenon that string is read, leads to the poor anti jamming capability of label data.
Therefore, there is label data poor anti jamming capability in the cipher mode of existing label data.
Summary of the invention
The present invention provides the encryption method, decryption method, apparatus and system of a kind of label data, it is intended to solve existing label
Existing for data encryption mode the problem of label data poor anti jamming capability.
First aspect present invention provides a kind of encryption method of label data, and the encryption method includes:
The sum of each byte according to original tag data determines the corresponding verification call number of the original tag data；
The corresponding check bit data of the verification call number are searched from default verification tables of data；
By the original tag data and the check bit data, XOR operation is carried out with preset-key and obtains encryption mark
Sign data；
The encryption label data is sent to receiving end.
Second aspect of the present invention provides a kind of decryption method of label data, and the decryption method includes:
Receive the encryption label data that transmitting terminal is sent；
The encryption label data and preset-key are subjected to XOR operation and obtain verification label data；Wherein, the school
Standard inspection label data include label data and verification data；
The sum of each byte according to the label data determines the corresponding verification call number of the label data；
The corresponding data of the verification call number are searched from default checklist；
Judge whether the corresponding data of the verification call number and the verification data are consistent；
When the corresponding data of the verification call number are consistent with the verification data, determine that the label data is correct
Original tag data；When the corresponding data of the verification call number and the verification data are inconsistent, the label is determined
Data are incorrect original tag data.
Third aspect present invention provides a kind of encryption device of label data, and the encryption device includes:
Call number determining module determines the original tag data pair for the sum of each byte according to original tag data
The verification call number answered；
Check bit data search module, for searching the corresponding verification of the verification call number from default verification tables of data
Position data；
XOR operation module, for being carried out with preset-key by the original tag data and the check bit data
XOR operation obtains encryption label data；
Data transmission blocks, for the encryption label data to be sent to receiving end.
Fourth aspect present invention provides a kind of decryption device of label data, and the decryption device includes:
Data reception module, for receiving the encryption label data of transmitting terminal transmission；
XOR operation module obtains verification label for the encryption label data and preset-key to be carried out XOR operation
Data；Wherein, the verification label data includes label data and verification data；
Call number determining module determines that the label data is corresponding for the sum of each byte according to the label data
Verify call number；
Data search module, for searching the corresponding data of the verification call number from default checklist；
Judgment module, for judging whether the corresponding data of the verification call number and the verification data are consistent；
When the corresponding data of the verification call number are consistent with the verification data, the judgment module determines the mark
Label data are correct original tag data；When the corresponding data of the verification call number and the verification data are inconsistent,
The judgment module determines that the label data is incorrect original tag data.
Fifth aspect present invention provides a kind of encrypting and decrypting system of label data, and the encrypting and decrypting system includes above-mentioned
Encryption device and above-mentioned decryption device.
In the present invention, it is summed by each byte to original tag data and determines the corresponding verification rope of original tag data
Quotation marks, and the corresponding check bit data of verification call number are searched from verification tables of data, then by original tag data and verification
Position data obtain encryption label data with preset-key progress XOR operation and send；It receiving end will after receiving encryption label data
It carries out XOR operation with preset-key and obtains including label data and the verification label data for verifying data, then according to label
The sum of each byte of data determines the corresponding verification call number of label data, and the corresponding number of verification call number is searched from checklist
According to, when verify the corresponding data of call number it is consistent with verification data when, that is, can determine label data for correct original tag number
According to.Therefore, mark can be improved by verifying using check bit to original tag data during encrypting and decrypting in the present invention
Sign the anti-interference ability of data.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of implementation flow chart of the encryption method of label data provided in an embodiment of the present invention；
Fig. 2 is a kind of another implementation flow chart of the encryption method of label data provided in an embodiment of the present invention；
Fig. 3 is a kind of implementation flow chart of the decryption method of label data provided in an embodiment of the present invention；
Fig. 4 is a kind of another implementation flow chart of the decryption method of label data provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of the encryption device of label data provided in an embodiment of the present invention；
Fig. 6 is a kind of another structural schematic diagram of the encryption device of label data provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of the decryption device of label data provided in an embodiment of the present invention；
Fig. 8 is a kind of structural block diagram of the encrypting and decrypting system of label data provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, Fig. 1 is a kind of implementation process of the encryption method of label data provided in an embodiment of the present invention, this
The executing subject of the encryption method of label data is transmitting terminal in embodiment, and transmitting terminal can be active label, but be not limited to
This.For ease of description, only parts related to embodiments of the present invention are shown, and details are as follows:
As shown in Figure 1, a kind of encryption method of label data, the encryption method the following steps are included:
S101: the corresponding verification call number of original tag data is determined according to the sum of each byte of original tag data.
It sums first to each byte of original tag data, determines that original tag data are corresponding according to the result of summation
Verify call number.In embodiments of the present invention, corresponding with original tag data in the presence of one as long as original tag data determine
Verification call number, the sum of the verification call number and corresponding each byte of original tag data are closely related.For example,
If the result of each byte summation of original tag data is 07, it is determined that the verification call number of original tag data is 07.Example
Such as, if the result of original tag data each byte summation is 2C2, it is determined that the verification call number of original tag data is
C2。
S102: the corresponding check bit data of verification call number are searched from default verification tables of data.
| 0th column | 1st column | 2nd column | 3rd column | 4th column | 5th column | 6th column | 7th column | 8th column | 9th column | A column | Column b | Column c | D column | E column | Line f | |
| 0th row | 0xB8 | 0xB9 | 0xBA | 0xBB | 0xB4 | 0xB5 | 0xB6 | 0xBB | 0xB0 | 0xB1 | 0xB2 | 0xB3 | 0x6C | 0x6C | 0x6A | 0x6F |
| 1st row | 0x68 | 0x69 | 0x6A | 0x6B | 0x64 | 0x65 | 0x66 | 0x6B | 0x60 | 0x61 | 0x62 | 0x63 | 0x1C | 0x1C | 0x1A | 0x1F |
| 2nd row | 0x18 | 0x19 | 0x1A | 0x1B | 0x14 | 0x15 | 0x16 | 0x1B | 0x10 | 0x11 | 0x12 | 0x13 | 0x0C | 0x0C | 0x0A | 0x0F |
| 3rd row | 0x08 | 0x09 | 0x0A | 0x0B | 0x04 | 0x05 | 0x06 | 0x0B | 0x00 | 0x01 | 0x02 | 0x03 | 0x3C | 0x3C | 0x3A | 0x3F |
| 4th row | 0x38 | 0x39 | 0x3A | 0x3B | 0x34 | 0x35 | 0x36 | 0x3B | 0x30 | 0x31 | 0x32 | 0x33 | 0x2C | 0x2C | 0x2A | 0x2F |
| 5th row | 0x28 | 0x29 | 0x2A | 0x2B | 0x24 | 0x25 | 0x26 | 0x2B | 0x20 | 0x21 | 0x22 | 0x23 | 0xCC | 0xCC | 0xCA | 0xCF |
| 6th row | 0xC8 | 0xC9 | 0xCA | 0xCB | 0xC4 | 0xC5 | 0xC6 | 0xCB | 0xC0 | 0xC1 | 0xC2 | 0xC3 | 0xCC | 0xCC | 0xCA | 0xCF |
| 7th row | 0xC8 | 0xC9 | 0xCA | 0xCB | 0xC4 | 0xC5 | 0xC6 | 0xCB | 0xC0 | 0xC1 | 0xC2 | 0xC3 | 0xFC | 0xFC | 0xFA | 0xFF |
| Eighth row | 0xF8 | 0xF9 | 0xFA | 0xFB | 0xF4 | 0xF5 | 0xF6 | 0xFB | 0xF0 | 0xF1 | 0xF2 | 0xF3 | 0xAC | 0xAC | 0xAA | 0xAF |
| 9th row | 0xA8 | 0xA9 | 0xAA | 0xAB | 0xA4 | 0xA5 | 0xA6 | 0xAB | 0xA0 | 0xA1 | 0xA2 | 0xA3 | 0x9C | 0x9C | 0x9A | 0x9F |
| Line a | 0x98 | 0x99 | 0x9A | 0x9B | 0x94 | 0x95 | 0x96 | 0x9B | 0x90 | 0x91 | 0x92 | 0x93 | 0x8C | 0x8C | 0x8A | 0x8F |
| Line b | 0x88 | 0x89 | 0x8A | 0x8B | 0x84 | 0x85 | 0x86 | 0x8B | 0x80 | 0x81 | 0x82 | 0x83 | 0xBC | 0xBC | 0xBA | 0xBF |
| Line c | 0xB8 | 0xB9 | 0xBA | 0xBB | 0xB4 | 0xB5 | 0xB6 | 0xBB | 0xB0 | 0xB1 | 0xB2 | 0x83 | 0xAC | 0xAC | 0xAA | 0xAF |
| Line D | 0xA8 | 0xA9 | 0xAA | 0xAB | 0xA4 | 0xA5 | 0xA6 | 0xAB | 0xA0 | 0xA1 | 0xA2 | 0xA3 | 0x5C | 0x5C | 0x5A | 0x5F |
| E row | 0x58 | 0x59 | 0x5A | 0x5B | 0x54 | 0x55 | 0x56 | 0x5B | 0x50 | 0x51 | 0x52 | 0x53 | 0x4C | 0x4C | 0x4A | 0x4F |
| Line f | 0x48 | 0x49 | 0x4A | 0x4B | 0x44 | 0x45 | 0x46 | 0x4B | 0x40 | 0x41 | 0x42 | 0x43 | 0xBC | 0xBC | 0xBA | 0xBF |
Table 1
Table 1 shows verification tables of data provided in an embodiment of the present invention.The tables of data is the tables of data of 16 rows, 16 column, number
It is hexadecimal data according to the data in table.The first row of tables of data is defined to the tenth behavior the 0th row to the 9th row, the tenth
A line is to the 16th behavior line a, line b, line c, line D, E row, line f；Similarly, the first row of tables of data is defined extremely
Tenth is classified as the 0th column to the 9th column, and the 11st column to the 16th are classified as A column, column b, column c, D column, E column, F
Column.In embodiments of the present invention, above-mentioned verification tables of data is also possible to other kinds of definition, however it is not limited to above-mentioned definition.But
It is that during use, transmitting terminal should be consistent with the definition type of the verification tables of data of receiving end.
Referring to the verification tables of data that 16 rows 16 shown in table of the embodiment of the present invention 1 arrange, for example, true according to above-mentioned steps S101
The verification call number of fixed original tag data is 07, and the data that the 0th row the 7th arranges are searched from verification tables of data shown in table 1, are led to
It crosses lookup verification data to learn, the data for verifying the 0th row the 7th column in tables of data are 0xBB, then corresponding with verification call number 07
Check bit data are BB.
Referring to the verification tables of data that 16 rows 16 shown in table of the embodiment of the present invention 1 arrange, for example, true according to above-mentioned steps S101
The verification call number of fixed original tag data is C2, and the data that line c the 2nd arranges are searched from verification tables of data shown in table 1,
It is learnt by searching for verification data, verifying the data that line c the 2nd arranges in tables of data is 0xBA, then corresponding with verification call number C2
Check bit data be BA.
S103: by original tag data and check bit data, XOR operation is carried out with preset-key and obtains encryption label
Data.
Original tag data and check bit data and preset-key are subjected to XOR operation and obtain the number of tags by encryption
According to, i.e., encryption label data.In embodiments of the present invention, which can freely define in advance, but in use process
In should remain unchanged, and transmitting terminal and receiving end should be consistent, for example, it is assumed that the preset-key is
CC0311880011。
For example, by one of original tag data and corresponding verification call number 07, with preset-key
CC0311880011 carries out XOR operation and obtains encryption label data；Another original tag data and corresponding verification
Call number C2 carries out XOR operation with preset-key CC0311880011 and obtains encryption label data.
S104: encryption label data is sent to receiving end.
After above-mentioned steps S103 obtains encryption label data, transmitting terminal launches above-mentioned encryption label data
It goes, is received for receiving end.
Referring to Fig. 2, Fig. 2 is a kind of another realization stream of the encryption method of label data provided in an embodiment of the present invention
Journey, the executing subject of the encryption method of label data is transmitting terminal in the present embodiment, and transmitting terminal can be but and unlimited with active label
In this.For ease of description, only parts related to embodiments of the present invention are shown, and details are as follows:
As an embodiment of the present invention, as shown in Fig. 2, step S101: true according to the sum of each byte of original tag data
Determine the corresponding verification call number of original tag data specifically:
S1011:, will be former when the result that each byte of original tag data is added summation is less than or equal to preset threshold
Each byte of beginning label data is added the result of summation as verification call number.
The preset threshold and verification tables of data shown in table 1 in above-described embodiment are closely related, in verification tables of data
Data amount check.In embodiments of the present invention, as shown in Figure 1, the verification tables of data is the tables of data of 16 rows 16 column, the i.e. check number
There are a hexadecimal data of 256 (decimal systems) according to table.When the result that each byte of original tag data is added summation is less than
Or when being equal to 256, each byte of original tag data is added the result of summation i.e. as verification call number.Certainly, school
It tests tables of data to be not limited to verify tables of data shown in above-mentioned table 1, can also be other customized tables of data, as long as using
It is consistent in the process in transmitting terminal and receiving end.For example, also can define the check number that verification tables of data is 10 rows 10 column
According to table.
Assuming that original tag data are as follows: 07000000000000, then the data of each byte of original tag data are respectively as follows:
07,00,00,00,00,00,00, each byte of original tag data is separately summed, i.e., are as follows:
07+00+00+00+00+00+00
=(0+0+0+0+0+0+0) * 16+ (7+0+0+0+0+0+0) * 1=07
That is, being 07 according to the verification call number that the original tag data that above-mentioned operation determines are 07000000000000.
S1012: when the result that each byte of original tag data is added summation is greater than preset threshold, by original tag number
According to each byte be added summation result preset byte as verification call number.It is in embodiment, when original mark in the present invention
When each byte for signing data is added the result summed greater than 256, each byte of original tag data is added to the knot of summation
One, the end byte of fruit is as verification call number.
Assuming that original tag data are as follows: D34A2FFF79B8C6, then the data of each byte of original tag data are respectively as follows:
Each byte of original tag data is separately summed, i.e., by D3,4A, 2F, FF, 79, B8, C6 are as follows:
D3+4A+2F+FF+79+B8+C6
=(D+4+2+F+7+B+C) * 16+ (3+A+F+F+9+8+6) * 1
=40*16+66*1
=2*16*16+8*16+4*16+2*1
=2*16*16+C*16+2*1
=2C2
The result 2C2 of above-mentioned original tag data D34A2FFF79B8C6 summation is greater than 256, therefore, takes the end one of 2C2
A byte C2 is C2 as verification call number, i.e. the verification call number of original tag data D34A2FFF79B8C6.
Further, step S103 can be specifically included: S1031 and S1032.
S1031: verification position data and original tag data are spliced to form verification label data.
(original tag data are illustrated by taking the original tag data 07000000000000 in above-mentioned steps S101 as an example
The step of after D34A2FFF79B8C6 with it is following identical, be no longer described in detail).Original tag data 07000000000000 are right
The verification call number answered is 07, i.e., the check bit data that the 0th row the 7th arranges is searched from verification tables of data shown in table 1, by looking into
Verification tables of data is looked for learn, the data for verifying the 0th row the 7th column in tables of data are 0xBB, then school corresponding with verification call number 07
Testing a data is BB.Original tag data 07000000000000 and check bit data BB are spliced to form verification label data
07000000000000BB。
In embodiments of the present invention, however it is not limited to it is above-mentioned will verification position data splice it is this to the end of original tag data
Merging mode.For example, it is also possible to before verification position data BB is placed on original tag data 07000000000000, the two splicing
Form verification label data BB07000000000000.Herein only for verifying label data 07000000000000BB,
BB07000000000000 is similar, is no longer described in detail.
S1032: high-ranking officers test label data and preset-key carries out XOR operation and obtains encryption label data.
Verification label data 07000000000000BB that above-mentioned steps are obtained and preset-key CC0311880011 into
Row XOR operation.
07000000000000BB and CC0311880011 is subjected to XOR operation and obtains encryption label data, because two
The length of data is different, therefore the two carries out circulation XOR operation, it may be assumed that
07000000000000BB and CC0311880011CC03 carries out XOR operation, in the process for carrying out XOR operation
In, original tag data 07000000000000BB and ciphering key C0311880011CC03 are converted into binary system first, then
XOR operation is carried out again.That is:
07000000000000BB is converted to binary system are as follows: 0000011100000000000000000000000000000
000000000000000000010111011, ciphering key C0311880011CC03 is converted to binary system are as follows: 1100110000000
011000100011000100000000000000100011100110000000011, above-mentioned binary data is subjected to exclusive or
Operation:
0000011100000000000000000000000000000000000000000000000010111011⊕11
00110000000011000100011000100000000000000100011100110000000011
=11,001,011,000,000,110,001,000,110,001,000,000,000,000,001,000,111,001,100 10111000, it will
The result of above-mentioned exclusive or is converted to hexadecimal are as follows: CB0311880011CCB8, i.e. encryption label data are
CB0311880011CCB8。
Therefore, by above-mentioned operation, obtaining encryption label data is CB0311880011CCB8.
In embodiments of the present invention, it is summed by each byte to original tag data and determines that original tag data are corresponding
Call number is verified, and searches the corresponding check bit data of verification call number from verification tables of data, then by original tag data
And check bit data obtain encryption label data with preset-key progress XOR operation and send.Therefore, the present invention is by adding
Check bit and original tag data are merged during close, and carry out operation with preset-key, passes through above-mentioned ciphering process
The anti-interference ability of label data can be improved.
Referring to Fig. 3, Fig. 3 is a kind of implementation process of the decryption method of label data provided in an embodiment of the present invention, this
The executing subject of the decryption method of label data is receiving end in embodiment, and receiving end can be base station, and but it is not limited to this.For
Convenient for explanation, only parts related to embodiments of the present invention are shown, details are as follows:
The decryption method of label data as shown in Figure 3 a kind of the following steps are included:
S201: the encryption label data that transmitting terminal is sent is received.
Receiving end receives the encryption label data that transmitting terminal is sent.In embodiments of the present invention, for example, receiving above-mentioned transmitting
Hold the encryption label data CB0311880011CCB8 sent.
S202: encryption label data and preset-key are subjected to XOR operation and obtain verification label data；Wherein, verification mark
Label data include label data and verification data.
The encryption label data CB0311880011CCB8 and preset-key CC0311880011 that above-mentioned steps are received
It carries out XOR operation and obtains verification label data, which includes label data and verification data.It is obtained according to above-mentioned
The verification label data arrived splits verification label data, and transmitting terminal is will to verify position data to be incorporated into original tag number
According to the last byte as original tag data of end, therefore, receiving end will verify to be consistent with transmitting terminal
One, the end byte of label data is as verification data, using the data before verification data as label data.
The encryption label data CB0311880011CCB8 and preset-key CC0311880011 that above-mentioned steps are received
XOR operation obtains verification label data, because the length of two data is different, the two carries out circulation XOR operation, in addition, also
Binary system will be both converted by, which needing, carries out XOR operation, it may be assumed that
CB0311880011CCB8⊕CC0311880011
=CB0311880011CCB8 ⊕ CC0311880011CC03
It is converted into binary system and carries out XOR operation are as follows:
1100101100000011000100011000100000000000000100011100110010111000⊕11
00110000000011000100011000100000000000000100011100110000000011
=00,000,111,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 10111011,
Converting hexadecimal for above-mentioned binary result is that 07000000000000BB is to get to label data
07000000000000BB。
According to label data 07000000000000BB obtained above, it is consistent, connects with the mode that merges of transmitting terminal
Receiving end using end the last byte BB of label data 07000000000000BB as verification data, will verification data BB it
Preceding 07000000000000 is used as label data.
It therefore, is 07000000000000BB, label data according to the verification label data that above-mentioned steps S202 is obtained are as follows:
07000000000000, verification data are BB.
S203: the corresponding verification call number of label data is determined according to the sum of each byte of label data.
It is 07000000000000BB, label data according to the verification label data that above-mentioned steps S202 is obtained are as follows:
07000000000000, verification data are BB.
The result of each byte of label data 07000000000000 summation is 07, it is determined that label data
07000000000000 verification call number is 07.
S204: the corresponding data of verification call number are searched from default checklist.
It is illustrated by taking above-mentioned label data 07000000000000 as an example.According to above-mentioned steps, label data
07000000000000 verification call number is 07, and tables of data is verified according to shown in table 1, and the data of the 0th row the 7th column are
0xBB, therefore verifying the corresponding verification data of call number 07 is BB.
S205: judge to verify the corresponding data of call number and whether verification data are consistent.
When the corresponding data of verification call number are consistent with verification data, determine that label data is correct original tag number
According to.
It is BB according to the corresponding data of verification call number 07 that above-mentioned steps obtain, which obtains with above-mentioned steps S202
Verification data BB it is consistent, it can determine that label data 07000000000000 that receiving end obtains is correct original tag
Data.
When verifying the corresponding data of call number and inconsistent verification data, determine that label data is incorrect original mark
Sign data.
Data are caused to change if crosstalk occurs for the encryption label data of transmitting terminal transmitting, receiving end receives encryption
If the verification label data being decrypted after label data are as follows: 07000000000001BB, then label data be
07000000000001, verification data are BB, and label data is that the result of 07000000000001 byte summation is 08, then such as
The data of the column of 0th row the 8th shown in table 1 are as follows: 0xB0.
It so, is B0, the data and verification data BB according to the corresponding data of verification call number 08 that above-mentioned steps obtain
It is inconsistent, it can to determine that the label data 07000000000001 that receiving end obtains is incorrect original tag data.Then
Receiving end can abandon the incorrect label data.
Referring to Fig. 4, Fig. 4 is a kind of another realization stream of the decryption method of label data provided in an embodiment of the present invention
Journey, the executing subject of the decryption method of label data is receiving end in the present embodiment, and receiving end can be base station, but be not limited to
This.
Wherein, the difference of the decryption method of the label data in the present embodiment and embodiment shown in Fig. 3 is step
S203, step S201, S202, S204, S205 please refer to the correlation of S201, S202, S204, S205 in embodiment shown in Fig. 3
Description, does not repeat herein.
As shown in figure 4, step S203: determining that the corresponding verification of label data indexes according to the sum of each byte of label data
Number specifically:
S2031: when the result that each byte of label data is added summation is less than or equal to preset threshold, by number of tags
According to each byte be added summation result as verification call number.
For example, being illustrated for label data 07000000000000.When transmitting terminal is carried out to 07000000000000
Encryption obtains encryption label data CB0311880011CCB8, and receiving end carries out encryption label data CB0311880011CCB8
Decryption obtains verification label data 07000000000000BB, and high-ranking officers test after label data 07000000000000BB is split and obtain
Label data 07000000000000 and verification data BB.Then each byte of label data 07000000000000 is added summation
Result be 07, less than 256, therefore, by the 07 verification call number as label data 07000000000000.
S2032: when the result that each byte of label data is added summation is greater than preset threshold, by each word of label data
Section is added the preset byte of the result of summation as verification call number.
For example, being illustrated for label data D34A2FFF79B8C6.When transmitting terminal carries out D34A2FFF79B8C6
Encryption obtains encryption label data, and receiving end is decrypted encryption label data to obtain verification label data
D34A2FFF79B8C6BA, high-ranking officers test after label data D34A2FFF79B8C6BA is split and obtain label data
D34A2FFF79B8C6 and verification data BA.Then the result of each byte addition summation of label data D34A2FFF79B8C6 is
2C2 is greater than 256, therefore, using one, the end byte C2 of label data D34A2FFF79B8C6 summed result as verification rope
Quotation marks.
In embodiments of the present invention, receiving end obtains it with preset-key progress XOR operation after receiving encryption label data
To including label data and the verification label data for verifying data, number of tags is then determined according to the sum of each byte of label data
According to corresponding verification call number, the corresponding data of verification call number are searched from checklist, when the corresponding data of verification call number
When consistent with verification data, that is, it can determine that label data is correct original tag data.Therefore, the present invention passes through decrypted
Original tag data are verified using check bit in journey, the anti-interference ability of label data can be improved.
Referring to Fig. 5, Fig. 5 is a kind of structure of the encryption device of label data provided in an embodiment of the present invention, the present invention
The encryption device of label data is transmitting terminal in embodiment, and transmitting terminal can be active label, and but it is not limited to this.For the ease of
Illustrate, only parts related to embodiments of the present invention are shown, and details are as follows:
Modules included by encryption device in Fig. 5 are used to execute each step in Fig. 1 corresponding embodiment, specifically
The associated description in Fig. 1 and Fig. 1 corresponding embodiment is please referred to, details are not described herein again.As shown in figure 5, a kind of label data
Encryption device, the encryption device include:
Call number determining module 301 determines original tag data pair for the sum of each byte according to original tag data
The verification call number answered.
Check bit data search module 302, for searching the corresponding verification of verification call number from default verification tables of data
Position data.
XOR operation module 303, for carrying out exclusive or fortune with preset-key for original tag data and check bit data
Calculation obtains encryption label data.
Data transmission blocks 304 are sent to receiving end for that will encrypt label data.
Referring to Fig. 6, Fig. 6 is a kind of structure of the encryption device of label data provided in an embodiment of the present invention, the present invention
The encryption device of label data is transmitting terminal in embodiment, and transmitting terminal can be active label, and but it is not limited to this.For the ease of
Illustrate, only parts related to embodiments of the present invention are shown, and details are as follows:
Modules included by encryption device in Fig. 6 are used to execute each step in Fig. 2 corresponding embodiment, specifically
The associated description in Fig. 2 and Fig. 2 corresponding embodiment is please referred to, details are not described herein again.As shown in fig. 6, in the encryption device
XOR operation module includes:
Data concatenation unit 3031 is spliced to form verification label data for that will verify position data and original tag data.
XOR operation unit 3032 tests label data for high-ranking officers and preset-key carries out XOR operation and obtains encryption label
Data.
Referring to Fig. 7, Fig. 7 is a kind of structure of the decryption device of label data provided in an embodiment of the present invention, the present invention
The decryption device of label data is receiving end in embodiment, and receiving end can be base station, and but it is not limited to this.For the ease of saying
Bright, only parts related to embodiments of the present invention are shown, and details are as follows:
Modules included by encryption device in Fig. 7 are used to execute each step in Fig. 4 corresponding embodiment, specifically
The associated description in Fig. 4 and Fig. 4 corresponding embodiment is please referred to, details are not described herein again.As shown in fig. 7, a kind of label data
Device is decrypted, which includes:
Data reception module 401, for receiving the encryption label data of transmitting terminal transmission；
XOR operation module 402 carries out XOR operation and obtains verification label for that will encrypt label data and preset-key
Data；Wherein, verification label data includes label data and verification data.
Call number determining module 403 determines the corresponding verification of label data for the sum of each byte according to label data
Call number.
Data search module 404, for searching the corresponding data of verification call number from default checklist.
Judgment module 405, for judging whether the corresponding data of verification call number and verification data are consistent.
When the corresponding data of verification call number are consistent with verification data, judgment module determines that label data is correctly former
Beginning label data；When verifying the corresponding data of call number and inconsistent verification data, judgment module determines that label data is not
Correct original tag data.
Referring to Fig. 8, Fig. 8 is a kind of structure of the encrypting and decrypting system of label data provided in an embodiment of the present invention, it is
Convenient for explanation, only parts related to embodiments of the present invention are shown, details are as follows:
As shown in figure 8, a kind of encrypting and decrypting system of label data, which includes 810 He of encryption device
Decrypt device 820.Wherein, encryption device 810 is encryption device described in any of the above-described embodiment, and decryption device 820 is above-mentioned
Decryption device described in any embodiment.In embodiments of the present invention, encryption device can be active label, but be not limited to
This；Decrypting device can be base station, and but it is not limited to this.
In embodiments of the present invention, it is summed by each byte to original tag data and determines that original tag data are corresponding
Call number is verified, and searches the corresponding check bit data of verification call number from verification tables of data, then by original tag data
And check bit data obtain encryption label data with preset-key progress XOR operation and send；Receiving end receives encryption number of tags
It is carried out XOR operation to obtain with preset-key after to include label data and the verification label data that verifies data, then root
The sum of each byte according to label data determines the corresponding verification call number of label data, and verification call number pair is searched from checklist
The data answered can determine that label data is correctly original when the corresponding data of verification call number are consistent with verification data
Label data.Therefore, the present invention is by verifying original tag data using check bit during encrypting and decrypting, can be with
Improve the anti-interference ability of label data.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (11)
1. a kind of encryption method of label data, which is characterized in that the encryption method includes:
The sum of each byte according to original tag data determines the corresponding verification call number of the original tag data；
The corresponding check bit data of the verification call number are searched from default verification tables of data；
By the original tag data and the check bit data, XOR operation is carried out with preset-key and obtains encryption number of tags
According to the preset-key remains unchanged in use, and is consistent in transmitting terminal and receiving end；
The encryption label data is sent to receiving end.
2. encryption method as described in claim 1, which is characterized in that described true according to the sum of each byte of original tag data
Determine the corresponding verification call number of the original tag data specifically:
It, will be described original when the result that each byte of the original tag data is added summation is less than or equal to preset threshold
Each byte of label data is added the result of summation as verification call number；
When the result that each byte of the original tag data is added summation is greater than the preset threshold, by the original tag
Each byte of data is added the preset byte of the result of summation as verification call number.
3. encryption method as described in claim 1, which is characterized in that described by the original tag data and the verification
Position data carry out XOR operation with preset-key and obtain encryption label data specifically:
The check bit data and the original tag data are spliced to form verification label data；
The verification label data and preset-key are subjected to XOR operation and obtain encryption label data.
4. a kind of decryption method of label data, which is characterized in that the decryption method includes:
Receive the encryption label data that transmitting terminal is sent；
The encryption label data and preset-key are subjected to XOR operation and obtain verification label data；Wherein, the verification mark
Label data include label data and verification data；
The sum of each byte according to the label data determines the corresponding verification call number of the label data；
The corresponding data of the verification call number are searched from default checklist；
Judge whether the corresponding data of the verification call number and the verification data are consistent；
When the corresponding data of the verification call number are consistent with the verification data, determine that the label data is correctly former
Beginning label data；When the corresponding data of the verification call number and the verification data are inconsistent, the label data is determined
For incorrect original tag data.
5. decryption method as claimed in claim 4, which is characterized in that each byte by the label data is added summation
Result as verification call number:
When the result that each byte of the label data is added summation is less than or equal to preset threshold, by the label data
Each byte be added summation result as verification call number；
When the result that each byte of the label data is added summation is greater than the preset threshold, by the label data
Each byte be added summation result preset byte as verification call number.
6. a kind of encryption device of label data, which is characterized in that the encryption device includes:
Call number determining module determines that the original tag data are corresponding for the sum of each byte according to original tag data
Verify call number；
Check bit data search module, for searching the corresponding verification digit of the verification call number from default verification tables of data
According to；
XOR operation module, for carrying out exclusive or with preset-key for the original tag data and the check bit data
Operation obtains encryption label data, and the preset-key remains unchanged in use, and keeps in transmitting terminal and receiving end
Unanimously；
Data transmission blocks, for the encryption label data to be sent to receiving end.
7. encryption device as claimed in claim 6, which is characterized in that the call number determining module is specifically used for:
When the result that each byte of the original tag data is added summation is less than or equal to preset threshold, the call number
Each byte of the original tag data is added the result of summation as verification call number by determining module；
When the result that each byte of the original tag data is added summation is greater than the preset threshold, the call number is determined
Each byte of the original tag data is added the preset byte for the result summed as verification call number by module.
8. encryption device as claimed in claim 6, which is characterized in that the XOR operation module includes:
Data concatenation unit, for the check bit data and the original tag data to be spliced to form verification label data；
XOR operation unit obtains encryption number of tags for the verification label data and preset-key to be carried out XOR operation
According to.
9. a kind of decryption device of label data, which is characterized in that the decryption device includes:
Data reception module, for receiving the encryption label data of transmitting terminal transmission；
XOR operation module obtains verification number of tags for the encryption label data and preset-key to be carried out XOR operation
According to；Wherein, the verification label data includes label data and verification data；
Call number determining module determines the corresponding verification of the label data for the sum of each byte according to the label data
Call number；
Data search module, for searching the corresponding data of the verification call number from default checklist；
Judgment module, for judging whether the corresponding data of the verification call number and the verification data are consistent；
When the corresponding data of the verification call number are consistent with the verification data, the judgment module determines the number of tags
According to for correct original tag data；It is described when the corresponding data of the verification call number and the verification data are inconsistent
Judgment module determines that the label data is incorrect original tag data.
10. decryption device as claimed in claim 9, which is characterized in that the call number determining module is specifically used for:
When the result that each byte of the label data is added summation is less than or equal to preset threshold, the call number is determined
Each byte of the label data is added the result of summation as verification call number by module；
When the result that each byte of the label data is added summation is greater than the preset threshold, the call number is determined
Each byte of the label data is added the preset byte for the result summed as verification call number by module.
11. a kind of encrypting and decrypting system of label data, which is characterized in that the encrypting and decrypting system includes such as claim 6
To encryption device described in 8 any one and the decryption device as described in claim 9 to 10 any one.
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| CN101833681B (en) * | 2010-04-02 | 2013-03-20 | 深圳市科陆电子科技股份有限公司 | Electronic label system |
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