RU2701127C1 - Method of non-contact reading and recording from an information carrier - Google Patents

Abstract

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering. Technical result is achieved due to wireless data carrier to which initiating event is sent to output wireless data carrier from standby mode, determination of transmission characteristics, according to which wireless data carrier is adjusted, after which data are transmitted from it of pre-recorded data and an identifier, an access code to the object, power supply via a wireless channel, data transmission by non-contact reading/record from the wireless data medium with its further extraction from the object, for further use, the information medium is assigned a modified access code for identification thereof.

EFFECT: technical result consists in providing identification of a wireless data medium with simultaneous exclusion of possibility of illegal reading of data transmission characteristics.

1 cl, 1 dwg

Description

The invention relates to the field of computer technology and can be used in information management and control systems as a reliable way to store data outside of systems with their subsequent operational inclusion in the circuit of the systems.

A known method for the dynamic configuration of a wireless transceiver, a computer-readable medium and a system for wireless data transmission (see RF patent No. 2461968, published 03/27/2011, author: Dann Sean, patent holder: Intel Corporation (US).), Which perform dynamic configuration wireless transceiver (wireless storage medium), by receiving an initiating event indicating that the wireless transceiver has been turned on. Based on the received initiating event, the wireless transceiver exits from the standby mode and receives data on its geographical location, then the transmission characteristics are determined that comply with the wireless communication standards covering this geographical location. After that, configure the wireless transceiver in accordance with certain characteristics of the transmission and transmit data from the configured wireless transceiver.

The specified method is the closest in technical essence to the claimed method, and therefore is selected as a prototype.

The disadvantage of this method is the low security of the object when interacting with a wireless data carrier, due to the lack of identification of the wireless data carrier before the interaction and the possibility of illegally reading the transmission characteristics between the object and the medium.

The technical problem to be solved is the creation of a contactless reading and writing method from an information carrier with high security characteristics when interacting with an object.

Achievable technical result is the identification of the wireless data carrier prior to the interaction with the exception of the negative impact on the input stages of the object and the additional identification of a specific wireless data carrier, which makes it impossible to illegally read the transmission characteristics between the object and the carrier.

In order to achieve a technical result in the method of contactless reading and writing from a storage medium, which consists in using a wireless storage medium, to which an initiating event for outputting the wireless storage medium from the standby mode is supplied, transmission characteristics are determined according to which the wireless storage medium is set up, and then transmit data from it, it is new that before the initiation of the event, the information carrier with pre-recorded data data and identifier are installed in the object, after which it is identified by entering the access code into the object, if the access codes entered and recorded in the object coincide, power is supplied wirelessly to the storage medium, the access code recorded in the object is changed to a new code with the output to the object display device, after the triggering event is submitted, the identifier is received from the wireless information carrier, if the identifiers received and recorded in the object match They initiate data transfer by contactless reading / writing from a wireless storage medium and then retrieving it from the object; for further use, the storage medium is assigned a modified access code to identify it.

The indicated set of essential features makes it possible to increase the security of information interaction between a wireless medium and an object by introducing a procedure for identifying the fact of connecting a wireless information medium to an object and additional verification of the authenticity of the medium after its initiation before setting up the information-technical interaction.

In FIG. 1 shows a diagram of a device that implements the inventive method of contactless reading and writing from a storage medium.

The method is implemented by the device shown in FIG. 1, and contains a series-connected block for entering the access code 1, comparison block 2, the first switch 3, the block for receiving the initiating event 4, the second block for storing the identifier 5, the block for analyzing the identifier 6, the second switch 7, and the first block for receiving and transmitting 8, the output of which is connected to the input-output of the second transmission / reception unit 9, the input of which is connected to the output of the second switch 7, and the second input - to the second input of the second storage unit of identifier 5 and the output of the first switch 3, the second input of which is connected to the source nick supply 10. Outputs settings storage unit 11, a first ID storage unit 12, the initialization unit 13 connected to the second inputs of the second switch 7, the identifier analysis unit 6, receiving the triggering event 4, respectively. The output of the comparison unit 2 is connected to the first input of the switch 14, the second input of which is connected to the output of the random sequence generator 15, and the output is connected to the input of the access code display unit 16 and the input of the access code storage unit 17, the output of which is connected to the second input of the comparison unit 2.

The block for entering the access code 1 can be made in the form of buttons. The comparison unit 2 and the analysis unit of the identifier 6 can be performed on chips 1533SP1. Switches 3, 7 and 14 consist of compact relays with switching capacity and low power consumption of the NG6D series. The unit for receiving the initiating event 4 and the initialization unit 13 can be performed according to the well-known scheme (see Stashin V.V., Urusov A.V., Mologontseva O.F. “Designing digital devices on single-chip microcontrollers.” - M .: Energoatomizdat, 1990, pp. 162-163). The identifier storage blocks 5 and 12, the settings storage unit 11 and the access coma storage unit 17 can be performed on 1623РТ2 type microcircuits. The transmit-receive blocks 8 and 9 are combinational logic circuits, the connection between the input and output variables in which is set using Boolean functions, and selectively connects the switching circuits. Output variables are uniquely determined by the values of the input variables. For their circuitry implementation, it is possible to use logic elements that implement Boolean functions, for example, multiplexers, demultiplexers, a combination shift device, comparators, adders, digital functional converters. The power source 10 can be performed according to the well-known scheme (see Stashin V.V., Urusov A.V., Mologontseva OF “Designing digital devices on single-chip microcontrollers.” - M .: Energoatomizdat, 1990, p. 129-135). The random sequence generator 15 can be performed according to the well-known scheme (see patent EP No. 665492, IPC: G06F 7/58, "High frequency pseudorandom sequence generator", Van Ravesteijn, Robertus Lambertus Adrianus; Zwartenkot, Klaas Elze, publ. 02.08. 95, Bull. “Inventions of the countries of the world” Issue 93 No. 1/98). The access code display unit 16 can be made in the form of ALS324A seven-segment LED indicators with a binary code to seven-segment indicator code conversion scheme implemented on the K514ID2 chip.

The method is implemented as follows.

In the initial state, the switches 3, 7 and 14 of the object are closed (see Fig. 1). To get started, you must install a wireless storage medium in the object and enter the access code into the object using the access code 1 input unit. When the entered access code matches the access code stored in the access code storage unit 16, the comparison unit 2 generates a signal that allows power supply from power supply 10 to the wireless storage medium by placing the switch 3 in the open state. The same signal allows writing a new access code from the pseudo-random sequence generator 15 to the access code storage unit 17 by switching the switch 14 to the open state, the new access code is briefly displayed in the access code display unit 16. The power supply 10 of the object brings the initiating reception unit into working state events 4, the identifier storage unit 5 and the transmit-receive unit 9 of the wireless storage medium. After that, it becomes possible to receive an initiating event from the object by the receiving unit of the initiating event 4 of the medium, in response to which the medium gives out its unique identifier stored in the identifier storage unit 5. The identifier received by the object is compared in the identifier analysis unit 6 with the identifier of the medium stored in the unit storing the identifier 12. In case of coincidence, the signal from the analysis unit of the identifier 6 allows the configuration of the protocols of information and technical interaction between the blocks EMA-transmitting object carrier 8 and 9 through the transfer switch 7 in the open state. Data transmission is carried out by contactless reading / writing from a wireless storage medium to an object, followed by its extraction from the object.

In case of a mismatch between the entered access code and the one stored in the opening object of the switch 3, power is not supplied to the wireless storage medium - it is impossible to work with it.

If the identifier of the wireless storage medium does not match, the switch 7 does not open, the switch 3 closes (dashed line in Fig.), The power of the wireless storage medium is turned off - it is impossible to work with it.

To enhance information security, it can be transformed by one of the known transformation algorithms (not shown in FIG.). In this case, before reading / writing information, it must be properly converted. As direct and inverse algorithmic transformations, one of the algorithms known from the prior art can be used, such as DES, GOST 28147-89 in the gamma-feedback mode.

The implementation of this method allows to increase the security of information and technical interaction between the wireless medium and the object by introducing the procedure for identifying the fact of connecting the wireless information medium to the object and additional verification of the authenticity of the medium after its initiation before setting up the information and technical interaction.

Software and hardware and software implementations of this method have confirmed the feasibility and practical value of the claimed method.

Claims (1)

The method of contactless reading and writing from the storage medium, which consists in using a wireless storage medium, to which a triggering event is applied to output the wireless storage medium from the standby mode, determine the transmission characteristics, according to which the wireless storage medium is set up, and then transfer data from it characterized in that prior to the filing of the triggering event, the information carrier with pre-recorded data and identifier is set to object, after which it is identified by entering the access code into the object, if the access codes entered and recorded in the object match, the power is supplied wirelessly to the storage medium, the access code recorded in the object is changed to a new code with output to the object display device, after the filing of the triggering event from the wireless storage medium receives its identifier, if the identifiers received and recorded in the object match, they transmit data by contactless After reading / writing from the wireless storage medium and then retrieving it from the object, for further use the modified storage code is assigned to the storage medium for its identification.

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