CN116386214B - Oiling machine system and method with IC card key online conversion function - Google Patents
Oiling machine system and method with IC card key online conversion function Download PDFInfo
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- CN116386214B CN116386214B CN202211609475.1A CN202211609475A CN116386214B CN 116386214 B CN116386214 B CN 116386214B CN 202211609475 A CN202211609475 A CN 202211609475A CN 116386214 B CN116386214 B CN 116386214B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012545 processing Methods 0.000 claims description 27
- 238000012795 verification Methods 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 13
- 239000012634 fragment Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F13/00—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
- G07F13/02—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs by volume
- G07F13/025—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs by volume wherein the volume is determined during delivery
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
Abstract
The application discloses an oiling machine system with an IC card key online conversion function and a method thereof, and relates to the field of electromechanical control. The system comprises a key management module, an information acquisition module, a background management module and a refueling operation module. The information acquisition module is used for acquiring user information stored by the IC card and uploading the user information to the background management module; the key management module is used for verifying the validity of the key and identifying the key version, acquiring a new version key generated by the background management module according to the user information, and writing the new version key into the IC card to complete key conversion. The application improves the automation degree of key conversion of the fueling IC card, shortens the time consumption of key conversion, avoids the situation that the fueling machine cannot be used due to the fact that the key is not updated when the user is in emergency, and reduces the labor cost consumed by the user and the fueling station management party.
Description
Technical Field
The application relates to the field of electromechanical control, in particular to an oiling machine system with an IC card key online conversion function and a method thereof.
Background
At the gas station, the user can use an IC card (Integrated Circuit Card ) to complete the fueling operation in cooperation with the fueling system. For users, the IC card is convenient to carry and convenient to operate in self-service oiling, so that the application of the IC card in the oiling machine field is widely popularized.
The IC card widely used at present is a non-contact logic encryption card, and the security of user data is protected by a stored secret key. However, the key stored in the IC card cannot be cracked, and the same key has a large potential safety hazard after long-term use. In particular, in the case of application to fuel dispensers, the IC card and fuel dispenser system need to be continuously matched with an update key and an encryption algorithm to improve the security of data. The existing problem is that after the oiling machine system is updated, the IC card with no updated key cannot be used, and the user must update the key of the IC card in time; the user needs to cancel the original IC card, and then the service station manager uses the background cashing system to reissue the card, so that the user can have the IC card after updating the secret key. Therefore, the current key updating mode is not convenient enough, and occupies more time of a gas station manager and a user, and the process is complicated.
Disclosure of Invention
The application aims to provide an oiling machine system and method with an IC card key online conversion function, so that old keys stored by an IC card are automatically converted into new keys online on the oiling machine, a waste card is not required to be made first, and then a card is issued again, the risk of key cracking is reduced, and meanwhile, the time cost of a gas station manager and a user is saved.
The aim of the application is achieved by the following technical scheme:
the oiling machine system with the IC card key on-line conversion function comprises a key management module, an information acquisition module and a background management module;
the key management module is respectively in communication connection with the information acquisition module and the background management module, and comprises a verification identification module and a key conversion module, wherein the verification identification module is in communication connection with the key conversion module; the verification and identification module is used for verifying the validity of the key and identifying the version of the key, and the key conversion module is used for acquiring a new version key and writing the new version key into the IC card;
the information acquisition module is used for acquiring user information stored by the IC card and uploading the acquired user information to the background management module;
the background management module is in communication connection with the information acquisition module and the key management module, and generates a new version key according to the received user information.
Further, the key conversion module comprises a sending sub-module, a receiving sub-module and a processing sub-module, and the sending sub-module, the receiving sub-module and the processing sub-module are sequentially in communication connection; the sending sub-module is used for sending a key conversion request to the background management module, the receiving sub-module is used for receiving a key conversion instruction sent by the background management module, and the processing sub-module is used for processing the key conversion instruction to obtain the new version key and writing the new version key into the IC card.
Optionally, the key conversion instruction includes a new version key; and the new version key is generated by encrypting the user information through a key generation algorithm by the background management module.
Optionally, the key conversion instruction includes a new version of key ciphertext; the new version key ciphertext is generated by encrypting the new version key through a key encryption algorithm by the background management module; and the new version key is generated by encrypting the user information through a key generation algorithm by the background management module.
Preferably, the key encryption algorithm is an asymmetric encryption algorithm;
the sending sub-module is also used for generating a public key and a private key of the key encryption algorithm and storing the private key before the IC card performs card withdrawal operation; the key conversion request, the contents of which include the public key;
the receiving sub-module is also used for obtaining the new version key by decrypting the new version key ciphertext.
Further, the system also comprises a fueling operation module; the oiling operation module is used for controlling the oiling machine to execute oiling operation and sending settlement payment information to the background management module; the background management module is also used for sending a fueling operation instruction to the fueling operation module and deducting the balance of the user according to the settlement payment information.
A fueling method with IC card key on-line conversion function includes the following steps:
step S1, inserting an IC card into an oiling machine;
step S2, verifying whether the IC card key is a legal new version key; if yes, enter step S3; if not, entering step S5;
step S3, judging whether the IC card key is an old version key; if yes, enter step S4; if not, executing card returning operation;
s4, acquiring a new version key and writing the new version key into the IC card;
step S5, a refueling operation is started.
Further, the step S4 specifically includes the following steps:
step S41, collecting user information;
step S42, a key conversion request is initiated;
step S43, generating a key conversion instruction according to the user information;
step S44, processing the key conversion instruction to obtain a new version key;
step S45, judging whether the new version key is legal or not; if not, the process proceeds to step S46; if the number of times of execution of the step exceeds n times, executing card withdrawal operation if the number of times of execution of the step exceeds n times, and returning to the step S42 if the number of times of execution of the step exceeds n times;
step S46, writing the new version key to the IC card.
Optionally, the step S43 specifically includes the following steps: encrypting the user information through a key generation algorithm to generate a new version key; generating a key conversion instruction, and taking the new version key as a part of data fragments of the key conversion instruction.
Optionally, the step S42 specifically includes the following steps: generating a pair of public key and private key according to an asymmetric encryption algorithm, and storing the private key before executing card withdrawal operation; taking the public key as a part of data fragments of a key conversion request;
the step S43 specifically includes the following steps: encrypting the user information through a key generation algorithm to generate a new version key; processing the key conversion request to obtain the public key, and encrypting the new version key by using the public key according to the asymmetric encryption algorithm in the step S42 to generate a new version key ciphertext; generating a key conversion instruction, and taking the new version key ciphertext as a part of data fragments of the key conversion instruction;
the step S44 specifically includes the following steps: processing the key conversion instruction to obtain a new version of key ciphertext; and decrypting the cipher text of the new version key by using the private key to obtain the new version key.
Compared with the prior art, the application has the following beneficial effects:
the application discloses a oiling machine system with an IC card key on-line conversion function and a method thereof, which replace the traditional key updating scheme that an old card is firstly abandoned and then a background cashing system is used for reissuing by a gas station manager by realizing the key automatic conversion function, so that a user can connect to the oiling machine system and execute the key conversion of the IC card by inserting the IC card into a card reader of the oiling machine only by conventional oiling operation without additional operation of the user or the gas station manager. Compared with the prior art, the method has the advantages that the automation degree of replacing the key of the oiling IC card is improved, the operation time is shorter, the situation that the oiling machine cannot be used due to the fact that the key is not updated when the user is in emergency is avoided, and the labor cost consumed by the user and the management party of the gas station is reduced.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a fuel dispenser system with an IC card key on-line conversion function according to an embodiment of the present application.
Fig. 2 is a block diagram of a key management module of a fuel dispenser system according to an embodiment of the application.
Fig. 3 is a flowchart of a fueling method with an IC card key on-line conversion function according to an embodiment of the present application.
Fig. 4 is a flowchart of acquiring a new version key and writing the new version key to an IC card according to an embodiment of the present application.
Detailed Description
The technical solutions of the present application will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 and 2, an oiling machine system with an IC card key online conversion function includes a key management module, an information acquisition module, a background management module and an oiling operation module.
The key management module is respectively in communication connection with the information acquisition module and the background management module.
The key management module comprises a verification identification module and a key conversion module, and the verification identification module is in communication connection with the key conversion module.
The verification and identification module is used for verifying the validity of the key and identifying the key version. The verification key needs to be used for verifying a decryption algorithm, and the version identification algorithm needs to be used for identifying the version of the key. The verification decryption algorithm and the version identification algorithm are both generated by a background management system and are preset in the key management module. It should be noted that, the verification decryption algorithm and the key generation algorithm for generating the new version key are a pair of encryption and decryption algorithms, so that only the new version key can pass the validity verification, and the old version key can only identify the key version, and is distinguished from the new version key or other illegal keys according to the verification and the verification, so as to perform subsequent key conversion.
The key conversion module is used for obtaining the new version key and writing the new version key into the IC card. The new version of key is written into the IC card, an IC card reader is needed, and an IC card reader YW-604HA is used in the embodiment of the application.
The information acquisition module is used for acquiring user information stored by the IC card and uploading the acquired user information to the background management module; wherein the read user information includes a physical card number of the IC card for generating a new key.
The oiling operation module is in communication connection with the background management module and is used for controlling the oiling machine to execute oiling operation.
The background management module is in communication connection with the information acquisition module and the key management module and is used for receiving user information and generating a new version key.
The embodiment of the application ensures the safety of the oiling machine system and the user information by verifying the validity of the key. The fuel dispenser is in a locked state until the key verification is passed. After passing the validity verification, the key management module sends a key verification passing result to the information acquisition module and the background management module, the information acquisition module acquires user information according to the result for subsequent operations such as oiling and payment, the background management module sends an oiling operation instruction to the oiling operation module according to the result, and the oiling operation module unlocks the oiling machine and allows the user to lift a gun for oiling after receiving the instruction.
The embodiment of the application ensures the normal execution of the follow-up key conversion process by identifying the old version key. After the key is identified as the old version key, the key management module sends a version identification result to the information acquisition module, and the information acquisition module performs acquisition of user information according to the version identification result for generating a subsequent new version key.
According to the embodiment of the application, the new version key is written into the IC card through the key conversion module, so that the IC card can pass the verification of the key legitimacy by using the new version key. Before this, the key conversion module needs to acquire the new version key.
Specifically, the key conversion module comprises a sending sub-module, a receiving sub-module and a processing sub-module, and the sending sub-module, the receiving sub-module and the processing sub-module are sequentially in communication connection; the sending sub-module is used for sending a key conversion request to the background management module, the receiving sub-module is used for receiving a key conversion instruction sent by the background management module, and the processing sub-module is used for processing the key conversion instruction to obtain a new version key and writing the new version key into the IC card.
In one embodiment, the key conversion instruction has two implementations.
In a first embodiment, the key conversion instruction includes a new version of the key. The new version of key is generated by the background management module through the encryption of the user information by the key generation algorithm, and the user information used in the encryption process is the physical card number of the IC card. The key generation algorithm is an encryption algorithm, and is uniformly generated by a background management module, and a corresponding decryption algorithm is preset in the key management module and is used as a decryption algorithm for verification.
The second implementation mode is that the key conversion instruction comprises a new version key ciphertext; the new version key ciphertext is generated by encrypting the new version key through a key encryption algorithm by a background management module; the new version of key is generated by the background management module through the encryption of the user information by the key generation algorithm, and the user information used in the encryption process is the physical card number of the IC card. The key generation algorithm is an encryption algorithm, and is uniformly generated by a background management module, and a corresponding decryption algorithm is preset in the key management module and is used as a decryption algorithm for verification.
Specifically, in the second embodiment, the key encryption algorithm is an asymmetric encryption algorithm, specifically an RSA encryption algorithm.
Specifically, in the second embodiment, the sending submodule is further configured to generate a public key and a private key of a key encryption algorithm, and store the private key before the IC card performs the card-returning operation; the key conversion request sent by the sending submodule comprises the public key; the specific mode of the processing sub-module processing the key conversion instruction is that the new version key is obtained by decrypting the new version key ciphertext by using the private key.
Further, the oiling operation module is also used for sending settlement payment information to the background management module; and the background management module deducts the balance of the user according to the settlement payment information. Specifically, during the execution of the refueling operation, the refueling operation module calculates information such as the quantity of fuel to be added, processes the information into settlement payment information after the end of the refueling, and sends the settlement payment information to the background management module, and the background management module deducts the balance according to balance information and settlement payment information included in the user information.
Referring to fig. 3, a fueling method with an IC card key online conversion function is applied to the above-mentioned fueling machine system in the present embodiment, and includes the following steps:
step S1, inserting an IC card into an oiling machine;
specifically, the IC card is inserted into a card reader of the oiling machine, and the data connection between the IC card and the oiling machine system is realized by reading the card through the card reader. The card reader used in the embodiment of the present application is an IC card reader YW-604HA.
Step S2, verifying whether the IC card key is a legal new version key; if yes, enter step S3; if not, entering step S5;
specifically, if the verification legitimacy is passed, that is, the IC card stores a legal new version of key, the key management module sends a key verification passing result to the background management module; if the validity is verified, the IC card key is judged to belong to the old version key or other illegal keys.
Step S3, judging whether the IC card key is an old version key; if yes, enter step S4; if not, executing card returning operation;
if the key is identified as the old version key, the key management module sends a version identification result to the information acquisition module and starts key conversion; if the card is identified as a non-old version of the key, the card is not operated on the oiling machine system, and therefore the card returning operation is performed.
S4, acquiring a new version key and writing the new version key into the IC card;
further, referring to fig. 4, step S4 specifically includes the following steps:
step S41, collecting user information;
specifically, the information acquisition module receives the version identification result, acquires user information and sends the user information to the background management module. The user information includes a physical card number of the IC card, which can be used to generate a new version of the key.
Step S42, a key conversion request is initiated;
step S43, generating a key conversion instruction according to the user information;
step S44, processing the key conversion instruction to obtain a new version key;
step S45, judging whether the new version key is legal or not; if not, the process proceeds to step S46; if the number of times of execution of the step is more than 5, executing card withdrawal operation if the number of times of execution of the step is legal, and returning to the step S42 if the number of times of execution of the step is not more than 5;
if the new version key is illegal, the steps S42 to S44 need to be re-executed to acquire the new version key; in order to avoid the system from entering a dead loop due to the fact that the system cannot acquire legal new keys for unpredictable reasons, a protection means for the step is introduced, and the card-withdrawing operation is executed after the steps S42 to S45 are repeatedly executed for 5 times.
Step S46, writing the new version key into the IC card;
specifically, the key management module is connected with the card reader through data and writes the new version of key into the IC card. So far, the IC card has completed the key conversion and can pass the key validity verification, so that the transmission key verification passing result is sent to the background management module.
Step S5, a refueling operation is started.
Specifically, step S5 includes the steps of: the background management module sends a refueling operation instruction to the refueling operation module after receiving the key verification passing result; after receiving the oiling operation instruction, the oiling operation module unlocks the oiling machine and allows a user to execute oiling operation; during the execution of the oiling operation, the oiling operation module counts the information such as the oiling amount and the like, and processes the information into settlement payment information and sends the settlement payment information to the background management module after the oiling is finished; and after receiving the settlement payment information, the background management module deducts the balance according to balance information and settlement payment information contained in the user information.
Specifically, in one embodiment, there are two implementations of step S42 to step S44.
The first embodiment is as follows:
in step S42, the key management module sends a key conversion request to the background management module.
Step S43, specifically comprises the following steps: after receiving the key conversion request, the background management module encrypts the user information through a key generation algorithm to generate a new version key; generating a key conversion instruction, and taking the new version key as a part of data fragments of the key conversion instruction; and sending the key conversion instruction to a key management module. The user information used for generating the new version of key by encryption is the physical card number of the IC card.
In step S44, after receiving the key conversion instruction, the key management module obtains the new version key by processing the key conversion instruction.
Wherein the second embodiment is:
step S42, specifically comprising the following steps: the key management module generates a pair of public key and private key according to the asymmetric encryption algorithm, and stores the private key before executing the card withdrawal operation; taking the public key as a part of data fragments of the key conversion request; and sending a key conversion request to a background management module. In this embodiment, the asymmetric encryption algorithm is specifically an RSA encryption algorithm.
Step S43, specifically comprises the following steps: after receiving the key conversion request, the background management module encrypts the user information through a key generation algorithm to generate a new version key; processing the key conversion request to obtain the public key, and encrypting the new version key by using the public key according to the asymmetric encryption algorithm in the step S05 to generate a new version key ciphertext; taking the new version of key ciphertext as part of the data segment of the key conversion instruction; and sending the key conversion instruction to a key management module. The user information used for generating the new version of key by encryption is the physical card number of the IC card.
Step S44, specifically comprising the following steps: processing a key conversion instruction to obtain a new version of key ciphertext; and decrypting the new version key ciphertext by using the private key to obtain the new version key.
Step S42 is to generate a pair of public key and private key for the above-mentioned asymmetric encryption algorithm, step S43 and step S44 correspond to the process of encrypting and decrypting the new version key respectively, so as to ensure the security of the new version key transmission process.
Compared with the second embodiment, the first embodiment does not encrypt the new version of the key contained in the key conversion instruction, and the system processing speed is faster, but the security is relatively lower; in the second embodiment, the background management module encrypts the new version of the key contained in the key conversion instruction, so that the security is relatively high, but the system processing speed is relatively low. Both of the above embodiments can satisfy the improvement effect of the present application over the prior art.
The foregoing is merely illustrative and explanatory of the application, as it is well within the scope of the application as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the application as defined in the accompanying claims.
Claims (4)
1. An oiling machine system with an IC card key on-line conversion function is characterized in that: the system comprises a key management module, an information acquisition module and a background management module;
the key management module is respectively in communication connection with the information acquisition module and the background management module, and comprises a verification identification module and a key conversion module, wherein the verification identification module is in communication connection with the key conversion module; the verification and identification module is used for verifying the validity of the key and identifying the version of the key, and the key conversion module is used for acquiring a new version key and writing the new version key into the IC card;
the information acquisition module is used for acquiring user information stored by the IC card and uploading the acquired user information to the background management module;
the background management module is in communication connection with the information acquisition module and the key management module, and generates a new version key according to the received user information;
the key conversion module comprises a sending sub-module, a receiving sub-module and a processing sub-module, and the sending sub-module, the receiving sub-module and the processing sub-module are sequentially in communication connection; the sending submodule is used for sending a key conversion request to the background management module, the receiving submodule is used for receiving a key conversion instruction sent by the background management module, and the processing submodule is used for processing the key conversion instruction to obtain the new version key and writing the new version key into the IC card;
the key conversion instruction comprises a new version key ciphertext; the new version key ciphertext is generated by encrypting the new version key through a key encryption algorithm by the background management module; the new version key is generated by encrypting the user information through a key generation algorithm by the background management module;
the key encryption algorithm is an asymmetric encryption algorithm; the sending sub-module is also used for generating a public key and a private key of the key encryption algorithm and storing the private key before the IC card performs card withdrawal operation; the key conversion request includes the public key; the processing submodule obtains a new version key by decrypting a new version key ciphertext by using the private key;
the device also comprises a refueling operation module; the oiling operation module is used for controlling the oiling machine to execute oiling operation and sending settlement payment information to the background management module; the background management module is also used for sending a fueling operation instruction to the fueling operation module and deducting the balance of the user according to the settlement payment information.
2. The oiling method with the IC card key online conversion function is characterized by being applied to the oiling machine system as in claim 1, and comprising the following steps:
step S1, inserting an IC card into an oiling machine;
step S2, verifying whether the IC card key is a legal new version key; if yes, the step S3 is carried out, and if not, the step S5 is carried out;
step S3, judging whether the IC card key is an old version key; if yes, entering a step S4, and if not, executing card returning operation;
s4, acquiring a new version key and writing the new version key into the IC card;
step S5, a refueling operation is started.
3. A fueling method as set forth in claim 2, wherein:
the step S4 specifically includes the following steps:
step S41, collecting user information;
step S42, a key conversion request is initiated;
step S43, generating a key conversion instruction according to the user information;
step S44, processing the key conversion instruction to obtain a new version key;
step S45, judging whether the new version key is legal or not; if not, the process proceeds to step S46; if the number of times of execution of the step exceeds n times, executing card withdrawal operation if the number of times of execution of the step exceeds n times, and returning to the step S42 if the number of times of execution of the step exceeds n times;
step S46, writing the new version key to the IC card.
4. A fueling method as set forth in claim 3, wherein:
the step S42 specifically includes the following steps: generating a pair of public key and private key according to an asymmetric encryption algorithm, and storing the private key before executing card withdrawal operation; taking the public key as a part of data fragments of a key conversion request;
the step S43 specifically includes the following steps: encrypting the user information through a key generation algorithm to generate a new version key; processing the key conversion request to obtain the public key, and encrypting the new version key by using the public key according to the asymmetric encryption algorithm in the step S42 to generate a new version key ciphertext; generating a key conversion instruction, and taking the new version key ciphertext as a part of data fragments of the key conversion instruction;
the step S44 specifically includes the following steps: processing the key conversion instruction to obtain a new version of key ciphertext; and decrypting the cipher text of the new version key by using the private key to obtain the new version key.
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| CN202211609475.1A CN116386214B (en) | 2023-02-10 | 2023-02-10 | Oiling machine system and method with IC card key online conversion function |
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| CN202211609475.1A CN116386214B (en) | 2023-02-10 | 2023-02-10 | Oiling machine system and method with IC card key online conversion function |
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| CN102063767A (en) * | 2009-11-12 | 2011-05-18 | 中国移动通信集团公司 | Method, system and PSAM (Purchase Secure Access Module) card for updating encryption key of smart card |
| CN105991650A (en) * | 2016-01-21 | 2016-10-05 | 李明 | Secret key acquisition method and identity card information transmission method and system |
| CN110113153A (en) * | 2019-04-23 | 2019-08-09 | 深圳数字电视国家工程实验室股份有限公司 | NFC secret key updating method, terminal and system |
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2023
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| JPH0744671A (en) * | 1993-07-28 | 1995-02-14 | Tec Corp | Ic card |
| JP2008294861A (en) * | 2007-05-25 | 2008-12-04 | Nippon Telegr & Teleph Corp <Ntt> | Key management method and system, service providing center device, ic card, and program |
| CN102063767A (en) * | 2009-11-12 | 2011-05-18 | 中国移动通信集团公司 | Method, system and PSAM (Purchase Secure Access Module) card for updating encryption key of smart card |
| CN105991650A (en) * | 2016-01-21 | 2016-10-05 | 李明 | Secret key acquisition method and identity card information transmission method and system |
| CN110113153A (en) * | 2019-04-23 | 2019-08-09 | 深圳数字电视国家工程实验室股份有限公司 | NFC secret key updating method, terminal and system |
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| CN116386214A (en) | 2023-07-04 |
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