As shown in table 2, the card balance, the transaction serial number, the key version number, the algorithm identifier, and the random number are card data, and the MAC1 is first verification data. After the smart card receives a card reading instruction, a microprocessor in the smart card extracts the random number and the transaction serial number, and adds a first filling number to obtain InData, wherein the random number is 11223344, the transaction serial number is 0000, and the first filling number is 0000, namely the InData is 1122334400000000. Then the intelligent card carries out 3DES encryption on InData through the common secret key to calculate a second process secret key Skey; namely: skey 3DES _ encrypt (InData, Ekey) 9B1D924E 05595603.

And then extracting the card balance, the transaction amount, the transaction type and the recharging terminal number to calculate the InData1, namely the InData1 is 000000000000100001001122334455. And then, performing MAC operation on the InData1 through the second process key to obtain first verification data: MAC1 ═ MAC (InData1, SKey) ═ 2988AE 5A.

And S400, adding recharging information before the card reading feedback information to obtain a key acquisition instruction, and sending the key acquisition instruction to a server.

In specific implementation, in this embodiment, the recharging information includes a transaction amount, a recharging terminal number, a transaction type, a transaction date, and a transaction time; the card reading feedback information comprises card data and first verification data. And filling the recharging information into the card reading feedback information to form a key acquisition instruction shown in a table 3. And the mobile terminal generates the key acquisition instruction and then sends the key acquisition instruction to a server.

TABLE 3 Key acquisition Instructions

Specifically, the data of the transaction amount is 00001000, the data of the terminal number is 001122334455, the data of the transaction type is 01, the data of the transaction date is 20191221, the data of the transaction time is 214822, the data of the card balance is 00000000, the data of the transaction serial number is 0000, the data of the key version number is 02 (the version number is increased by 1 when the key is changed), the data of the algorithm identifier is 00, the data of the random number is 11223344, and the data of the MAC1 is 2988AE 5A.

S500, receiving a recharging request key fed back by the server, forwarding the recharging key to a recharging terminal for verification, and recharging the smart card after the verification is successful.

In a specific implementation, in this embodiment, after receiving the key obtaining instruction, the server performs key verification to generate a recharge request key, and sends the recharge request key back to the mobile terminal. The mobile terminal receives the recharging request key, assembles the recharging request key into a recharging instruction and sends the recharging instruction to the recharging terminal, the recharging terminal verifies the recharging request key in the recharging instruction, and writes the recharging amount into the smart card after the verification is passed, namely, the recharging amount is increased on the basis of the balance of the original card, so that the smart card is recharged. And finally, adding 1 to the transaction serial number, returning data 9000 to the recharging terminal to show that recharging is successful, and sending the data to the mobile phone after the data is received by the recharging terminal to represent that recharging is successful. If the verification is unsuccessful, i.e., the recharge fails, it returns to 6985.

Specifically, the recharge instruction is shown in table 4:

TABLE 4 recharge instruction

CLA

INS

P1

P2

LC

Date of transaction

Transaction time

MAC2

80

52

00

0B

20191221

214822

3A845BF0

For example, referring to fig. 8, the process of generating the recharge request key includes the steps of:

m40, after receiving a key acquisition instruction, the server extracts card data in the key acquisition instruction;

m41, calculating second verification data according to the card data, and comparing the second verification data with the first verification data;

and M42, when the second verification data is consistent with the first verification data, calculating a recharging request key according to the recharging information in the key acquisition instruction.

In specific implementation, in this embodiment, after receiving the key obtaining instruction, the server extracts the random number and the transaction sequence number in the key obtaining instruction, adds first padding data to obtain the InData2, and performs 3DES encryption on the InData2 according to the shared key Ekey1 to obtain the Skey 1. And extracting the card balance, the transaction amount, the transaction type and the terminal number in the key acquisition command to obtain InData3, and finally performing MAC operation according to Skey1 and InData3 to obtain second verification data MAC 0. MAC0 is compared with MAC1, and if they match, the verification is successful, and if they do not match, the verification fails.

Further, when the verification is successful, continuously extracting the transaction amount, the transaction type, the terminal number, the transaction date and the transaction time in the key acquisition command to obtain the InData4, then directly acquiring the Skey according to the second process key Skey (when the verification is successful, the Skey is proved to be the same as the Skey1, so that the Skey can be directly acquired, or the Skey1 can be used) and the InData4 to perform MAC operation to obtain a recharge request key MAC2, and sending the recharge request key to the mobile terminal.

Based on the above smart card recharging method based on bluetooth, please continue to refer to fig. 1, the present invention further provides a smart card recharging system based on bluetooth, which includes amobile terminal 10, a rechargingterminal 11, aserver 12 and asmart card 13;

themobile terminal 10 is used for scanning the two-dimensional code or scanning the Bluetooth broadcast to send a Bluetooth connection request to the rechargingterminal 11, and establishing a clear Bluetooth connection with the rechargingterminal 11; after the Bluetooth connection is successful, an encryption authentication request is sent to the rechargingterminal 11, and encryption authentication is carried out with the rechargingterminal 11; after the encryption authentication is successful, sending a card information obtaining instruction to the rechargingterminal 11, and receiving card reading feedback information sent by the rechargingterminal 11; adding recharging information in front of the card reading feedback information to obtain a key acquisition instruction, and sending the key acquisition instruction to theserver 12; receiving a recharging request key fed back by theserver 12, forwarding the recharging key to the rechargingterminal 11 for verification, and recharging thesmart card 13 after the verification is successful;

the rechargingterminal 11 is used for performing bluetooth connection with themobile terminal 10 according to the bluetooth connection request, receiving an encryption authentication request sent by themobile terminal 10 after the bluetooth connection is successful, and performing encryption authentication connection with themobile terminal 10; after the encryption authentication connection is successful, reading card data of thesmart card 13 according to a card information acquisition instruction sent by themobile terminal 10, generating card reading feedback information and feeding the card reading feedback information back to themobile terminal 10; recharging theintelligent card 13 according to the recharging request key;

theserver 12 is configured to generate a recharge request key according to the key acquisition instruction and return the recharge request key to themobile terminal 10;

thesmart card 13 is used for sending card data to the rechargingterminal 11 according to the card reading instruction, and receiving recharging information written in by the rechargingterminal 11. Since the recharging method of the contactlesssmart card 13 based on bluetooth is described in detail above, it will not be described in detail here.

The present invention also provides a computer readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in a bluetooth-based smart card recharging method as described in the above embodiments.

The present invention also provides a terminal device, as shown in fig. 9, which includes at least one processor (processor)20, and a memory (memory) 22; adisplay screen 21, aCommunications Interface 23 and/or abus 24 may also be included. Theprocessor 20, thedisplay 21, thememory 22 and thecommunication interface 23 can communicate with each other through thebus 24. Thedisplay screen 21 is configured to display a user guidance interface preset in the initial setting mode. Thecommunication interface 23 may transmit information. Theprocessor 20 may call logic instructions in thememory 22 to perform the methods in the embodiments described above.

Furthermore, the logic instructions in thememory 22 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.

Thememory 22, which is a computer-readable storage medium, may be configured to store a software program, a computer-executable program, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 30 executes the functional application and data processing, i.e. implements the method in the above-described embodiments, by executing the software program, instructions or modules stored in thememory 22.

Thememory 22 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, thememory 22 may include a high speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, may also be transient storage media.

In addition, the specific processes loaded and executed by the storage medium and the instruction processors in the mobile terminal are described in detail in the method, and are not stated herein.

The intelligent card recharging method, system, terminal equipment and storage medium based on Bluetooth comprise the following steps: scanning the two-dimensional code or scanning a Bluetooth broadcast to send a Bluetooth connection request to the recharging terminal, and establishing a Bluetooth connection of a plaintext with the recharging terminal; after the Bluetooth connection is successful, an encryption authentication request is sent to the recharging terminal, and encryption authentication is carried out with the recharging terminal; after the encryption authentication is successful, sending a card information acquisition instruction to the recharging terminal, and receiving card reading feedback information sent by the recharging terminal; adding recharging information in front of the card reading feedback information to obtain a key acquisition instruction, and sending the key acquisition instruction to a server; and receiving a recharging request key fed back by the server, forwarding the recharging key to the recharging terminal for verification, and recharging the smart card after the verification is successful. The invention realizes the acquisition of the recharging request key by establishing Bluetooth connection with the recharging terminal and connecting the mobile terminal with the server, and then realizes the recharging of the intelligent card by transmitting the recharging request key to the recharging terminal through Bluetooth.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A smart card recharging method based on Bluetooth is characterized by comprising the following steps:

scanning the two-dimensional code or scanning a Bluetooth broadcast to send a Bluetooth connection request to the recharging terminal, and establishing a Bluetooth connection of a plaintext with the recharging terminal;

after the Bluetooth connection is successful, an encryption authentication request is sent to the recharging terminal, and encryption authentication is carried out with the recharging terminal;

after the encryption authentication is successful, sending a card information acquisition instruction to the recharging terminal, and receiving card reading feedback information sent by the recharging terminal;

adding recharging information in front of the card reading feedback information to obtain a key acquisition instruction, and sending the key acquisition instruction to a server;

the method comprises the steps of receiving a recharging request key fed back by a server, transmitting the recharging key to a recharging terminal for verification, recharging the smart card after the verification is successful, sending an encryption authentication request to the recharging terminal after the Bluetooth connection is successful, and performing encryption authentication with the recharging terminal, wherein the steps of:

after the Bluetooth connection is successful, sending an encryption authentication request to the recharging terminal, and receiving authentication information returned by the recharging terminal, wherein the authentication information is obtained by encrypting a first random number by the recharging terminal through a user master key;

sending the authentication information to an encryptor, receiving a first authentication response message returned by the encryptor, and transmitting the first authentication response message to a recharging terminal for encryption authentication, wherein the generation process of the first authentication response message comprises the following steps:

the encryptor decrypts the authentication information through the user master key to obtain a first random number;

and filling a second random number in the first random number to obtain a third random number, and decrypting the third random number through the user master key to obtain a first authentication response message.

2. The smart card recharging method based on bluetooth according to claim 1, wherein the step of receiving the first authentication response message returned by the encryptor and transmitting the first authentication response message to the recharging terminal for encryption authentication specifically comprises:

after receiving a first authentication response message returned by an encryptor, sending the first authentication response message to the recharging terminal;

and after the recharging terminal verifies that the first authentication response message is correct, establishing encryption authentication connection with the recharging terminal.

3. The bluetooth-based smart card recharging method of claim 2, wherein the verification process of the first authentication response message comprises the steps of:

the recharging terminal encrypts the first authentication response message through a user master key to obtain a third random number;

4. The bluetooth-based smart card recharging method as claimed in claim 1, wherein the generation process of the card reading feedback information comprises the steps of:

5. The method for recharging a bluetooth-based smart card according to claim 1 or 4, wherein the generating process of the recharging request key comprises the steps of:

6. The utility model provides a smart card system of recharging based on bluetooth which characterized in that, smart card system of recharging based on bluetooth includes mobile terminal, recharges terminal, server and smart card:

the intelligent card is used for sending card data to the recharging terminal according to the card reading instruction and receiving recharging information writing of the recharging terminal;

7. A terminal device, comprising: a processor and a memory; the memory has stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, performs the steps of the method of recharging a bluetooth-based smart card according to any of claims 1 to 5.

8. A computer readable storage medium, storing one or more programs, the one or more programs being executable by one or more processors for performing the steps of the method for recharging a bluetooth-based smart card as claimed in any one of claims 1 to 5.