Data processing method, electronic tag and radio frequency card reader
A radio frequency card reader and data processing technology, applied in the field of radio frequency identification, can solve problems such as poor reliability of information transmission, and achieve the effect of ensuring legality and security
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[0068] Example 1
[0069] See figure 1 , Shown is the data processing method in the first embodiment of the present invention, which is applied to electronic tags, including steps S01 to S03.
[0070] Step S01: When receiving a reading signal sent by a radio frequency card reader, obtain plaintext data corresponding to the reading signal.
[0071] Among them, the electronic tag, also known as the radio frequency tag, is the carrier of RFID (Radio Frequency Identification, radio frequency identification technology). It is a technology that uses radio frequency signals to achieve non-contact information transmission through spatial coupling, and achieves automatic identification through the transmitted information. . According to the power supply mode of electronic tags, it can be divided into active tags and passive tags. The energy of active tags comes from its built-in power supply. It has the advantages of long-distance recognition, fast speed, and small dependence on the transmis...
Example Embodiment
[0108] Example 2
[0109] Please check Figure 5 , The data processing method according to the second embodiment of the present invention, which is applied to electronic tags, includes steps S11 to S17.
[0110] Step S11, when receiving the reading signal sent by the radio frequency card reader, obtain the plaintext data m corresponding to the reading signal.
[0111] Step S12: Obtain the private key d and the base point coordinate G of the elliptic curve, and randomly generate a random number K, where the base point is any point on the elliptic curve.
[0112] Wherein, the base point coordinate G is coordinate data in an affine coordinate system, and its expression form is G(x, y).
[0113] Step S13: According to the preset coordinate conversion formula, the base point coordinate G in the affine coordinate system is converted to the base point coordinate G in the Jacobian coordinate system.
[0114] Among them, the base point coordinate G in the Jacobian coordinate system is expressed a...
Example Embodiment
[0163] Example 3
[0164] Please check Image 6 , The data processing method according to the third embodiment of the present invention, which is applied to a radio frequency card reader, includes steps S21 to S22.
[0165] Step S21: Send a read signal to an electronic tag, and receive signature data and plaintext data m fed back by the electronic tag in response to the read signal.
[0166] Among them, the radio frequency reader is used to identify electronic tags, such as Figure 7 As shown, it mainly includes a control system, and a radio frequency analog front end composed of a transmitting circuit and a receiving circuit. The control system mainly performs the functions of signal encoding, decoding, encryption and decryption; controls the communication between the application software and the tag, and executes the function of the code instructions issued by the system software. The functions of the radio frequency analog front end include: generating high-frequency transmission...
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