CN113242549B - Data processing method, mobile device, UICC (Universal Integrated Circuit card) and terminal - Google Patents
Data processing method, mobile device, UICC (Universal Integrated Circuit card) and terminal Download PDFInfo
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Abstract
The invention provides a data processing method, which relates to the technical field of communication and comprises the following steps: responding to a data processing request based on GBA sent by a terminal application on the mobile equipment, and acquiring data to be processed of the terminal application; generating a data processing request command based on the data to be processed, and sending the data processing request command to the UICC, so that the UICC can process the data to be processed by using a preset shared key; and acquiring the data to be processed, which is processed by the UICC by using the preset shared secret key. The invention also provides the mobile equipment, the UICC and the terminal.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a data processing method, mobile equipment, a UICC (Universal Integrated Circuit card) and a terminal.
Background
In the third generation wireless communication standard, a Generic Authentication Architecture (GAA) is a general structure used by various Application service entities to complete Authentication of a user identity, and the Application GAA can implement communication encryption processing between a User Equipment (UE) and an Application server (NAF). GAA contains two authentication mechanisms, one is Generic Bootstrapping Architecture (GBA) for authentication based on a shared key between communicating entities, and the other is public key based certificate for authentication. The GBA mechanism enables communication between the UE and the NAF over a shared key by generating the shared key between the UE and the NAF. According to the difference of the entity capability and the division of labor of the UE, the GBA may be classified into GBA _ ME and GBA _ U, where the entities of the UE include a Mobile Equipment (ME) and a Universal Integrated Circuit Card (abbreviated), GBA _ ME refers to that negotiation and generation of a key are completed on the Mobile Equipment (abbreviated ME) of the UE, GBA _ U refers to that negotiation and generation of a key are completed on the UICC, and GBA _ U has higher security compared with GBA _ ME.
Under the GBA _ U mechanism, the shared secret keys generated by the UICC include two shared secret keys, wherein one shared secret key is stored in the UICC and is not disclosed to the ME of the UE, and the other shared secret key is sent to the ME by the UICC for storage. In the prior art, for applications in which a mobile device of a UE and an UICC are associated with each other, when an application installed in the ME communicates with a NAF in the UE, a key stored in the ME is generally used as a shared key, and when an application installed in the UICC communicates with the NAF, a key stored in the UICC is generally used as a shared key, and an application on the ME side and an application on the UICC side support implementation of service functions together, for example, an application on the UICC side provides security capability, storage and use of a certificate, and the like, and an application on the ME side provides user services and local management. In this case, both the application on the ME side and the application on the UICC side may need to perform GBA service, such as access authentication service of the application on the ME side and certificate encryption transmission service of the application on the UICC side. In the GBA service process, for NAF common to ME application and UICC application, NAF also needs to use different shared keys to perform data processing on the communication data of ME application and the communication data of UICC application, which results in higher complexity of NAF managing shared keys and is not convenient for unified management of shared keys.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a data processing method, mobile equipment, a UICC (Universal Integrated Circuit card) and a terminal.
In a first aspect, the present invention provides a data processing method, applied to a mobile device of a user terminal, where the user terminal includes the mobile device and a UICC, and the data processing method includes:
responding to a data processing request based on GBA sent by a terminal application on the mobile equipment, and acquiring data to be processed of the terminal application;
generating a data processing request command based on the data to be processed, and sending the data processing request command to the UICC, so that the UICC can process the data to be processed by using a preset shared key;
and acquiring the data to be processed, which is processed by the UICC by using the preset shared secret key.
Preferably, the data to be processed includes a plurality of first data blocks to be processed, the data processing request command includes a plurality of data processing request subcommands, and each data processing request subcommand correspondingly includes one first data block to be processed;
the step of generating a data processing request command according to the data to be processed and sending the data processing request command to the UICC includes:
aiming at the current first data block to be processed in the plurality of first data blocks to be processed, generating a current data processing request subcommand according to the current first data block to be processed;
sending the current data processing request subcommand to the UICC, wherein the current data processing request subcommand comprises the current first data block to be processed;
in response to a current first command response message returned by the UICC for the current data processing request subcommand, taking a next first to-be-processed data block of the plurality of first to-be-processed data blocks as the current first to-be-processed data block, and
and executing the step of generating the current data processing request subcommand according to the current first to-be-processed data block.
Preferably, the step of generating a data processing request command according to the data to be processed and sending the data processing request command to the UICC includes:
generating the data processing request command according to the complete data to be processed, wherein the data processing request command comprises the complete data to be processed;
and sending the data processing request command containing the complete data to be processed to the UICC.
Preferably, after the step of sending the current data processing request subcommand to the UICC, the method further includes:
receiving a current first command response message returned by the UICC according to the current data processing request subcommand;
if the current first command response message indicates to retransmit the current first data block to be processed, executing the step of generating the current data processing request subcommand according to the current first data block to be processed;
if the current first command response message indicates that the next first to-be-processed data block is to be sent, performing the step of taking the next first to-be-processed data block of the plurality of first to-be-processed data blocks as the current first to-be-processed data block in response to the current first command response message returned by the UICC for the current data processing request subcommand.
Preferably, the step of obtaining the to-be-processed data processed by the UICC using the preset shared key includes:
and receiving a data processing response message returned by the UICC, wherein the data processing response message contains the processed data to be processed.
Preferably, the processed data to be processed includes a plurality of second data blocks to be processed;
the step of obtaining the to-be-processed data processed by the UICC using the preset shared key includes:
receiving a current data processing response message returned by the UICC, wherein the current data processing response message comprises a current second data block to be processed in a plurality of second data blocks to be processed and information for indicating to acquire the next second data block to be processed by sending a command;
detecting whether the current data processing response message is abnormal or not;
if the current data processing response message is detected to be abnormal, generating a current data acquisition request command for instructing the UICC to retransmit a current second data block to be processed, and sending the current data acquisition request command to the UICC, so that the UICC can respond to the current data acquisition request command and regenerate a current data processing response message based on the current second data block to be processed;
if it is detected that the current data processing response message is not abnormal, generating a current data acquisition request command for instructing the UICC to transmit the next second data block to be processed, and sending the current data acquisition request command to the UICC, so that the UICC responds to the current data acquisition request command, taking the next second data block to be processed as the current second data block to be processed, and generating a current data processing response message based on the current second data block to be processed;
and executing the step of receiving the current data processing response message returned by the UICC.
In a second aspect, the present invention further provides a data processing method, applied to a UICC of a user equipment, where the user equipment includes a mobile device and the UICC, and the data processing method includes:
receiving a data processing request command sent by the mobile equipment, wherein the data processing request command is a command generated by the mobile equipment based on GBA-based to-be-processed data sent by a terminal application;
processing the data to be processed by using a preset shared key;
and sending the processed data to be processed to the mobile equipment.
Preferably, the data to be processed includes a plurality of first data blocks to be processed, the data processing request command includes a plurality of data processing request subcommands, and each data processing request subcommand correspondingly includes one first data block to be processed;
the step of receiving the data processing request command sent by the mobile device comprises the following steps:
receiving the current data processing request subcommand sent by the mobile equipment, wherein the current data processing request subcommand comprises the current first data block to be processed;
responding to the current data processing request subcommand, generating a current first command response message, sending the current first command response message to the mobile equipment, so that the mobile equipment can regard the next first data block to be processed in the plurality of first data blocks to be processed as the current first data block to be processed aiming at the current first command response message, and generating the current data processing request subcommand according to the current first data block to be processed;
and executing the step of receiving the current data processing request subcommand sent by the mobile equipment.
Preferably, the step of receiving the data processing request command sent by the mobile device includes:
and receiving a data processing request command sent by the mobile equipment, wherein the data processing request command is generated by the mobile equipment according to the complete data to be processed, and the data processing request command comprises the complete data to be processed.
Preferably, after the step of receiving the current data processing request subcommand sent by the mobile device, the method further includes:
detecting whether the current data processing request subcommand has an exception or not;
if the data processing request subcommand is detected to be abnormal, generating a current first command response message for instructing the mobile equipment to retransmit the current first data block to be processed, so that the mobile equipment can generate the current data processing request subcommand according to the current first data block to be processed;
if it is detected that the current data processing request subcommand is not abnormal, a current first command response message used for instructing the mobile equipment to transmit the next first data block to be processed is generated, so that the mobile equipment takes the next first data block to be processed in the plurality of first data blocks to be processed as the current first data block to be processed aiming at the current first command response message, and the current data processing request subcommand is generated according to the current first data block to be processed.
Preferably, the step of sending the processed data to be processed to the mobile device includes:
generating a data processing response message according to the processed data to be processed, wherein the data processing response message comprises the processed data to be processed;
and sending the data processing response message to the mobile equipment.
Preferably, the processed data to be processed includes a plurality of second data blocks to be processed;
the step of sending the processed data to be processed to the mobile device includes:
generating a current data processing response message according to the current second data block to be processed aiming at the current second data block to be processed in the plurality of second data blocks to be processed;
sending the current data processing response message to the mobile device, wherein the current data processing response message comprises the current second data block to be processed;
responding to the current data acquisition request command returned by the mobile equipment for the current data processing response message to indicate to transmit the next second data block to be processed, taking the next second data block to be processed in the plurality of second data blocks to be processed as the current second data block to be processed, and
executing the step of generating a current data processing response message according to the current second data block to be processed;
and in response to a current data acquisition request command returned by the mobile device for the current data processing response message indicating retransmission of the current second data block to be processed, directly executing the step of generating the current data processing response message according to the current second data block to be processed.
Preferably, the preset shared key is a Ks _ int _ NAF key.
In a third aspect, the present invention provides a mobile device, comprising: a storage module and at least one processor, wherein the storage module stores a computer program, and the computer program realizes the data processing method provided by the first aspect when being executed by the at least one processor.
In a fourth aspect, the present invention provides a UICC comprising: a storage module and at least one processor, wherein the storage module stores a computer program, and the computer program realizes the data processing method provided by the second aspect of the invention when being executed by the at least one processor.
In a fifth aspect, the present invention further provides a terminal, including a mobile device and a UICC, where the mobile device is the mobile device provided in the third aspect of the present invention, and the UICC is the UICC provided in the fourth aspect of the present invention.
The invention has the beneficial technical effects that:
the invention provides a data processing method, mobile equipment, UICC and a terminal, wherein when the terminal application installed on the mobile equipment needs to communicate with an application server under a GBA mechanism, the terminal sends data to be processed to the mobile equipment, the mobile equipment generates a GBA-based data processing request command based on the data to be processed and sends the data processing request command to the UICC, and the UICC responds to the data processing request command and processes the data to be processed by utilizing a preset shared key stored in the UICC and returns the processed data to the mobile equipment for the terminal application to use.
Drawings
Fig. 1 is a schematic structural diagram of a user terminal according to an embodiment of the present invention;
fig. 2 is a flowchart of a data processing method according to an embodiment of the present invention;
FIG. 3 is a flow chart of another data processing method according to an embodiment of the present invention;
FIG. 4 is a flow chart of another data processing method according to an embodiment of the present invention;
FIG. 5 is a flow chart of another data processing method according to an embodiment of the present invention;
FIG. 6 is a flow chart of another data processing method according to an embodiment of the present invention;
FIG. 7 is a flowchart of another data processing method according to an embodiment of the present invention;
FIG. 8 is a flow chart of another data processing method according to an embodiment of the present invention;
fig. 9 is a flowchart of another data processing method according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the data processing method, the mobile device, the UICC and the terminal provided by the present invention are described in detail below with reference to the accompanying drawings.
The data processing method provided by the invention is used for processing the data related to the communication between the user terminal and the application server, and the data processing process is mainly carried out in the user terminal. Fig. 1 is a schematic structural diagram of a User Equipment (UE) according to an embodiment of the present invention, and as shown in fig. 1, the User Equipment (UE) in the present invention specifically includes a mobile device 1 and a UICC2, where the UICC (Universal Integrated Circuit Card) is a Universal smart Card platform on which various applications reside, such as smart Card applications of USIM, bank, ticket, and the like, and the UICC provides a unified bottom layer support for upper layer applications thereof.
The data processing method provided by the present invention will be described in detail below with the mobile device and UICC as the executing bodies, respectively.
Fig. 2 is a flowchart of a data processing method according to an embodiment of the present invention, where the embodiment is implemented based on a mobile device in a user terminal, and as shown in fig. 2, the method includes:
step S101, responding to a data processing request based on GBA sent by a terminal application on the mobile equipment, and acquiring data to be processed of the terminal application.
GBA (generic Bootstrapping Architecture, abbreviated as GBA)) is an authentication mechanism for performing authentication based on a shared key between communication entities, where the GBA mechanism enables communication between a UE and a NAF through the shared key by generating the shared key between the UE and the NAF, and GBA is divided into two types, namely, GBA _ ME and GBA _ U, according to different UICC functions.
In the embodiment of the invention, when a terminal application installed on a mobile device needs to communicate with an application server, the mobile device sends a data processing request to the mobile device, wherein the data processing request is based on a GBA mechanism, the mobile device obtains to-be-processed data of the terminal application after receiving the GBA-based data processing request sent by the terminal application, and preferably, the mobile device obtains the to-be-processed data of the terminal application in a mode that the terminal application sends the to-be-processed data to the mobile device through the GBA-based data processing request.
Step S102, generating a data processing request command based on the data to be processed, and sending the data processing request command to the UICC, so that the UICC can process the data to be processed by using the preset shared key.
After the mobile device acquires the data to be processed, a data processing request command is generated based on the data to be processed, the data processing request command is sent to the UICC, the UICC acquires the data to be processed through the data processing request command, and the UICC processes the data to be processed by using a preset shared key stored in the UICC in response to the data processing request command.
In the embodiment of the present invention, the data processing request command is a data interaction command between the mobile device and the UICC in a GBA scenario, and meets a requirement that the to-be-processed data of the terminal application is processed by using the shared key stored in the UICC, and the data processing request command may be generated based on a preset first command format.
And step S103, acquiring to-be-processed data processed by the UICC by using the preset shared key.
And after processing the data to be processed, the UICC returns the processed data to be processed to the mobile equipment so as to be used by a terminal application installed on the mobile equipment. Preferably, the UICC may feed back the processed data to be processed to the mobile device by generating a response command corresponding to the data processing request command.
In the embodiment of the invention, when a terminal application installed on mobile equipment needs to communicate with an application server under a GBA mechanism, the terminal application sends data to be processed to the mobile equipment, the mobile equipment generates a GBA-based data processing request command based on the data to be processed and sends the data processing request command to the UICC, the UICC responds to the data processing request command and processes the data to be processed by using a preset shared key stored in the UICC, and the processed data to be processed is returned to the mobile equipment for the terminal application.
In some embodiments, when the data volume of the to-be-processed data of the terminal application is large, the mobile device may be implemented based on data block transmission when generating the data processing request command based on the to-be-processed data and sending the data processing request command to the UICC. That is, the data to be processed is divided into a plurality of first data blocks to be processed, and correspondingly, the data processing request command includes a plurality of data processing request subcommands, and each data processing request subcommand includes a first data block to be processed. Specifically, as shown in fig. 3, fig. 3 is a flowchart of another data processing method according to an embodiment of the present invention, and in this embodiment, on the basis of the embodiment shown in fig. 2, step S102 may specifically include:
step S1021, for a current first to-be-processed data block in the plurality of first to-be-processed data blocks, generating a current data processing request subcommand according to the current first to-be-processed data block.
Step S1022, the current data processing request subcommand is sent to the UICC.
Step S1023, in response to a current first command response message returned by the UICC for the current data processing request subcommand, taking a next first to-be-processed data block of the plurality of first to-be-processed data blocks as a current first to-be-processed data block, and returning to perform step S1021.
In some embodiments, after the data to be processed is divided into a plurality of first data blocks to be processed, the mobile device sequentially processes the plurality of first data blocks to be processed, where the current first data block to be processed refers to a data block to be processed immediately in the plurality of first data blocks to be processed.
In step S1021, the mobile device generates a current data processing request sub-command according to the current first to-be-processed data block based on a preset first command format, where the current data processing request sub-command includes the current first to-be-processed data block; in step S1023, after the UICC receives the current data processing request subcommand, a current first command response message is generated and fed back to the mobile device, after the mobile device receives the current first command response message, the mobile device takes a next first to-be-processed data block of the multiple first to-be-processed data blocks as a current first to-be-processed data block and returns to perform step S1021 until all the first to-be-processed data blocks are successfully sent to the UICC in a data processing request subcommand manner. In order to facilitate the sequential extraction of the first data block to be processed, in practical applications, after the data to be processed is divided into a plurality of first data blocks to be processed, the plurality of first data blocks to be processed may be numbered sequentially, and the first data block to be processed is extracted according to the numbered sequence in the data processing process.
In some embodiments, on the UICC side, after receiving the current data processing request subcommand, the UICC determines whether there is a first data block to be processed remaining in the mobile device to be sent based on the current data processing request subcommand, and the determination may be performed by identifying a relevant field in the current data processing request subcommand, for example, setting a field in the current data processing request subcommand to identify the number of remaining data blocks, and the UICC detects the field to determine the number of remaining data blocks. When the UICC determines that there is still a first to-be-processed data block remaining in the mobile device and needs to be sent, the UICC generates a first command response message so that the mobile device continues to send the remaining first to-be-processed data block in response to the first command response message, and when it is determined that the first to-be-processed data block in the mobile device has been sent, the UICC does not generate the first command response message any more and returns the first command response message to the mobile device, but executes a process of processing the to-be-processed data, and at this time, the loop of steps S1021 to S1023 ends.
In some embodiments, when the data amount of the data to be processed is small, the data processing request command may be generated directly from the data to be processed without dividing the data to be processed. That is, step S102 includes: and generating a data processing request command according to the complete data to be processed, and sending the data processing request command containing the complete data to be processed to the UICC. In this embodiment, a process of generating a data processing request command according to complete data to be processed is similar to a process of generating a data processing request sub-command based on a first data block to be processed in the previous embodiment, and both commands are commands generated based on a preset first command format.
In some embodiments, during the process of transmitting the to-be-processed data block to the UICC by the mobile device, an exception may occur in the current data processing request subcommand sent by the mobile device, and in this case, the mobile device needs to generate and send the current data processing request subcommand to the UICC again based on the current first to-be-processed data block. Specifically, as shown in fig. 4, fig. 4 is a flowchart of another data processing method according to an embodiment of the present invention, and on the basis of the embodiment shown in fig. 3, after step S1022, the present embodiment further includes:
step S1022a, receiving a current first command response message returned by the UICC for the current data processing request subcommand.
Step S1022b, identify the current first command response message as indicating to retransmit the current first to-be-processed data block or indicating to transmit the next first to-be-processed data block.
When recognizing that the current first command response message is indicative of retransmitting (retransmitting) the current first to-be-processed data block, returning to perform step S1021; when it is recognized that the current first command response message is indicative of transmission of the next first to-be-processed data block, step S1023 is performed.
In the embodiment of the present invention, the exceptions that may occur in the data processing request subcommand include a data format error in the command, an incomplete first to-be-processed data block included in the command, and the like. The data processing request subcommand is abnormal, which may cause the UICC to fail to acquire a corresponding complete first to-be-processed data block from the data processing request subcommand and/or the UICC may fail to process the corresponding first to-be-processed data block in response to the data processing request subcommand. Therefore, in the embodiment of the present invention, after the mobile device sends the current data processing request sub-command to the UICC, the UICC side will detect the current data processing request sub-command to determine whether there is an exception in the current data processing request sub-command, for example, the UICC determines whether a format error occurs in the current data processing request sub-command by detecting whether fields of the current data processing request sub-command meet a preset specification, determines whether a first to-be-processed data block contained in the current data processing request sub-command is complete by detecting whether the size of the first to-be-processed data block is equal to a preset size, and so on.
After the UICC completes detection of the current data processing request subcommand, a current first command response message containing different information is generated according to a detection result, and the information contained in the current first command response message may include two types, one type is used for instructing the mobile device to retransmit a current first data block to be processed, and the other type is used for instructing the mobile device to transmit a next first data block to be processed. When the UICC detects that the current data processing request subcommand is abnormal, the current first command response message includes information for instructing the mobile device to retransmit the current first to-be-processed data block; when the UICC detects that the current data processing request subcommand is not abnormal, and the UICC identifies that the mobile device currently has the remaining first data block to be processed to be sent, the current first command response message includes information for instructing the mobile device to transmit the next first data block to be processed. In practical applications, different information contained in the current first command response message can be realized by setting different corresponding parameters.
The embodiment of the invention regenerates the data processing request sub-command and sends the data processing request sub-command to the UICC when the data processing request sub-command is wrong or abnormal, thereby ensuring the integrity of the data to be processed transmitted to the UICC and correctly triggering the UICC to process the data to be processed.
In the embodiment of the present invention, after the mobile device sends the complete data to be processed to the UICC, and the UICC receives the complete data to be processed and completes processing, the mobile device obtains the processed data to be processed from the UICC, as in step S103 in fig. 2.
As an optional implementation manner of step S103, step S103 specifically includes: and receiving a data processing response message returned by the UICC, wherein the data processing response message comprises the processed data to be processed. That is, the UICC generates a data processing response message based on the processed data to be processed, where the data processing response message includes the processed data to be processed, the UICC sends the data processing response message to the mobile device, and the mobile device receives the data processing response message and obtains the processed data to be processed from the data processing response message. The embodiment is suitable for the case that the data size of the processed data to be processed is not large.
As another optional implementation manner of step S103, when the data size of the processed to-be-processed data is large, the UICC may block and return the processed to-be-processed data to the mobile device, that is, the mobile device may obtain the processed to-be-processed data from the UICC multiple times. Specifically, as shown in fig. 5, fig. 5 is a flowchart of another data processing method provided in the embodiment of the present invention, in this embodiment, the processed to-be-processed data includes a plurality of second to-be-processed data blocks, that is, after the UICC completes processing on the to-be-processed data, the to-be-processed data is divided into the plurality of second to-be-processed data blocks. In this embodiment, on the basis of the embodiment shown in fig. 2, step S103 specifically includes:
and step S1031, receiving the current data processing response message returned by the UICC.
The current data processing response message comprises a current second data block to be processed in the plurality of second data blocks to be processed, wherein the current second data block to be processed refers to a data block to be transmitted immediately in the plurality of second data blocks to be processed; the data processing response message is used to instruct the mobile device to obtain information of a next second to-be-processed data block by sending a command, and when all the second to-be-processed data blocks have been sent, the data processing response message is further used to prompt the mobile device that all the second to-be-processed data blocks have been sent.
Step S1032 detects whether there is an abnormality in the current data processing response message.
In practical applications, when the UICC returns the second to-be-processed data block to the mobile device, there may be an abnormality in a current data processing response message sent by the UICC, and in this case, the mobile device needs to generate a command to reacquire the current second to-be-processed data block, so that the UICC retransmits the current second to-be-processed data block. For the possible exception of the current data processing response message, refer to the description of the exception condition of the data processing request subcommand in the embodiment shown in fig. 4, which is not described herein again.
In step S1032, when it is detected that the current data processing response message is abnormal, a current data obtaining request command for instructing the UICC to retransmit the current second data block to be processed is generated, and the current data obtaining request command is sent to the UICC, so that the UICC responds to the current data obtaining request command and regenerates the current data processing response message based on the current second data block to be processed; and when it is detected that there is no abnormality in the current data processing response message, the following step S1033 is executed to perform transmission of the next second data block to be processed.
Step S1033, identifying whether the current data processing response message indicates to obtain the next second to-be-processed data block by sending a command or prompts that all the second to-be-processed data blocks have been sent.
When it is recognized that the current data processing response message indicates that the next second to-be-processed data block is obtained by sending a command, performing step S1034, and sequentially returning to perform step S1031; and when the current data processing response message is identified to prompt that all the second data blocks to be processed are sent completely, ending the process.
Step S1034, in response to the current data processing response message, generating a current data obtaining request command for instructing the UICC to transmit the next second data block to be processed, and sending the current data obtaining request command to the UICC.
And the UICC responds to the current data acquisition request command, takes the next second data block to be processed as the current second data block to be processed, and generates a current data processing response message based on the current second data block to be processed.
In the embodiment of the present invention, when the mobile device recognizes that the current data processing response message indicates to obtain the next second data block to be processed by sending a command, the mobile device generates a data obtaining request command based on a preset first command format, and sends the data obtaining request command to the UICC.
In some embodiments, after receiving the data obtaining request command each time, the UICC determines whether only one second to-be-processed data block is currently left and is not sent, and when it is determined that only one second to-be-processed data block is currently left and is not sent, the UICC takes a next second to-be-processed data block (a last to-be-processed data block) as the current second to-be-processed data block, generates a current data processing response message for prompting that all second to-be-processed data blocks of the mobile device have been sent completely based on the current second to-be-processed data block, and sends the current data processing response message to the mobile device; and when judging that a plurality of second data blocks to be processed are not sent, taking the next second data block to be processed as the current second data block to be processed, generating a current data processing response message for instructing the mobile equipment to obtain the next second data block to be processed by sending a command based on the current second data block to be processed, and sending the current data processing response message to the mobile equipment.
In some embodiments, after receiving the data obtaining request command each time, the UICC determines whether there is a second data block to be processed that is not sent currently, and if there is a second data block to be processed that is not sent currently, the UICC takes the next second data block to be processed as the current second data block to be processed, and generates a current data processing response message based on the current second data block to be processed, where the current data processing response message includes the current second data block to be processed and information used for instructing the mobile device to obtain the next second data block to be processed by sending the command; and if not, generating a current data processing response message, wherein the current data processing response message does not contain any second data blocks to be processed, but contains information for prompting that all the second data blocks to be processed of the mobile equipment are sent completely.
In practical applications, two different kinds of information included in the data processing response message can be implemented by setting a specific field in the preset first command format to have different values.
In the above embodiment, various commands sent by the mobile device may be implemented based on a preset first command format and by setting different field values, and the embodiment of the present invention provides a preferred first command format, as shown in the following table:
the first command format can be simultaneously suitable for the block transmission of a large data volume and the whole transmission of a small data volume, and can provide basic management of continuation, suspension, retransmission and the like. The parameters of the first command format are described as follows:
p1 is a command parameter 1, which indicates the management requirement of the command, wherein the field b1b2 indicates the session number of the data transmission process, and at most 4 session numbers can exist; the field b3 indicates whether the command contains data to be transmitted, and the command may have two values, for example, when the value is "0", the command does not contain the data to be transmitted, and when the value is "1", the command contains the data to be transmitted; the b4 field indicates a requirement for session continuation or suspension, and may have two values, for example, when the value is "0", it indicates that the session is continued, and when the value is "1", it indicates that the session is suspended; the b5 field indicates a requirement on whether a response needs to be retransmitted, and may have two values, for example, when the value is "0", it indicates that the command is used to transmit a next data block, and when the value is "1", it indicates that the command is used to retransmit a data block that needs to be retransmitted and indicated by the latest response. The definitions of the rest fields of the P1 can be reserved, and the specific setting meanings are shown in the table.
P2 is a command parameter 2 indicating the number of remaining data blocks from the mobile device to the UICC, i.e. the number of data blocks not transmitted.
Lc is the length of the data portion to be transmitted in the command, and optionally, is not present when b3= 0.
The NAF-ID is a component of the command data, which is the identity of the NAF (application server) and is used to indicate the NAF (application server) that requests the processing of this data transmission, which includes the length of the NAF-ID and the NAF-ID value.
Data is a component of command Data, represents Data or Data blocks to be processed of the current transmission, and comprises the length of the Data and a Data value, and when b3=0, the length of the Data and the Data value are null.
REQ is a component of command data, indicates a processing requirement for data to be processed, and may include other requirements of the current data processing available to the terminal application, such as type of processing, algorithm indication, and the like.
Le is the expected response length, optionally absent when b3= 1.
In the above embodiments, the data processing request command, the data processing request subcommand, the data obtaining request command, and other commands sent by the mobile device may all be implemented based on the first command format, and the specific value of each field may be set according to the actual situation.
Fig. 6 is a flowchart of another data processing method provided in an embodiment of the present invention, where the data processing method provided in this embodiment is implemented based on a UICC in a user equipment, and as shown in fig. 6, the method includes:
step S201, receiving a data processing request command sent by the mobile device.
The data processing request command is a command generated by the mobile device based on the to-be-processed data which is sent by the terminal application and is based on the GBA. The generation process of the data processing request command is the same as the generation process of the data processing request command in step S101 in the foregoing embodiment, and for details, refer to the description of step S101, which is not described herein again.
Step S202, processing the data to be processed by utilizing the preset shared key.
The predetermined shared key is a shared key stored in the UICC, and the shared key is a key generated under the GBA mechanism, and particularly, under the GBA _ U mechanism, the UICC generates the shared key, and the shared key is stored in the application server at the same time, so that the terminal application uses the shared key to perform data processing (encryption/decryption processing, authentication processing, etc.) when communicating with the application server.
In some embodiments, the provisioned shared key within the UICC is a Ks _ int _ NAF key.
And step S203, sending the processed data to be processed to the mobile equipment.
In the embodiment of the invention, the UICC receives a data processing request command sent by the mobile equipment, acquires the data to be processed from the data processing request command, processes the data to be processed based on the preset shared key, and returns the processed data to be processed to the mobile equipment for terminal application.
In some embodiments, when the data size of the to-be-processed data applied by the terminal is relatively large, the mobile device transmits the to-be-processed data to the UICC in blocks, as shown in fig. 7, fig. 7 is a flowchart of another data processing method provided in an embodiment of the present invention, in this embodiment, the to-be-processed data includes a plurality of first to-be-processed data blocks, the data processing request command includes a plurality of data processing request subcommands, each data processing request subcommand includes a first to-be-processed data block, and in this embodiment, on the basis of the embodiment shown in fig. 6, step S201 includes:
step S2011, a current data processing request sub-command sent by the mobile device is received, where the current data processing request sub-command includes a current first to-be-processed data block.
Step S2012, determining whether there is still a first to-be-processed data block remaining in the mobile device to be sent based on the current data processing request subcommand.
The UICC determines whether there is a first data block to be processed remaining in the mobile device to be sent based on the current data processing request subcommand by identifying a relevant field in the data processing request subcommand, for example, setting a field in the data processing request subcommand to identify the number of remaining data blocks, and the UICC determines the number of remaining data blocks by detecting the field.
In step S2012, when the UICC determines that there is a remaining first to-be-processed data block in the mobile device to be sent, executing step S2013, so that the mobile device continues to send the remaining first to-be-processed data block in response to the first command response message, and sequentially returning to step S2011 until the UICC successfully receives all the first to-be-processed data blocks sent by the mobile device; when it is determined that there is no first to-be-processed data block in the mobile device to be sent, the UICC does not generate the first command response message, but directly performs step S202 to process the received first to-be-processed data block.
Step S2013, in response to the current data processing request subcommand, generating a current first command response message for instructing the mobile device to transmit a next first to-be-processed data block, and sending the current first command response message to the mobile device.
After receiving the current first command response message, the mobile device regards a next first data block to be processed in the plurality of first data blocks to be processed as the current first data block to be processed, and generates a current data processing request subcommand according to the current first data block to be processed, in view of the current first command response message.
Steps S2011 to S2013 in this embodiment correspond to steps S1021 to S1023 in the above embodiment, and specific details are described in the corresponding steps in the above embodiment, which are not repeated herein.
In some embodiments, when the data amount of the data to be processed is small, the data to be processed may not be divided, and at this time, the process of step S201 is: and receiving a data processing request command sent by the mobile equipment, wherein the data processing request command is generated for the mobile equipment according to the complete data to be processed, and the data processing request command comprises the complete data to be processed.
In some embodiments, during the process of transmitting the to-be-processed data block to the UICC by the mobile device, an error or an exception may occur in the data processing request subcommand sent by the mobile device, in which case the UICC needs to instruct the mobile device to resend the data processing request subcommand containing the current first to-be-processed data block. As shown in fig. 8, fig. 8 is a flowchart of another data processing method according to an embodiment of the present invention, and on the basis of the embodiment shown in fig. 7, after step S2011, the present embodiment further includes:
step S2012a, detecting whether the current data processing request subcommand has an exception.
If the current data processing request subcommand is detected to be abnormal, generating a current first command response message for instructing the mobile equipment to retransmit the current first data block to be processed, and sending the current first command response message to the mobile equipment so that the mobile equipment can generate the current data processing request subcommand according to the current first data block to be processed; if it is detected that there is no exception in the current data processing request subcommand, step S2012 is executed.
In the embodiment of the present invention, the exceptions that may occur in the data processing request subcommand include data format errors and incomplete contained data blocks. The data processing request subcommand is abnormal, which may cause the UICC to fail to acquire a corresponding complete first to-be-processed data block from the data processing request subcommand and/or the UICC may fail to process the corresponding first to-be-processed data block in response to the data processing request subcommand. Therefore, in the embodiment of the present invention, after the mobile device sends the current data processing request sub-command to the UICC, the UICC side detects the current data processing request sub-command to determine whether the current data processing request sub-command is abnormal, for example, the UICC determines whether a format error occurs in the current data processing request sub-command by detecting whether fields of the current data processing request sub-command meet a preset specification, determines whether a first to-be-processed data block contained in the current data processing request sub-command is complete by detecting whether a size of the first to-be-processed data block is equal to a preset size, and so on.
The embodiment shown in fig. 8 of the present invention corresponds to the method steps of the embodiment shown in fig. 4 of the present invention, and please refer to the description of the corresponding method steps in the embodiment shown in fig. 4 for details, which are not repeated herein.
In the invention, the UICC can wait for processing data after processing the data to be processed
And returning the processed data to be processed to the mobile equipment by adopting different modes according to the data volume of the processed data.
In some embodiments, when the data volume of the processed to-be-processed data is small, the processed to-be-processed data may be directly returned to the mobile device in the form of a response message. Correspondingly, the process of step S203 is: and generating a data processing response message according to the processed data to be processed, wherein the data processing response message comprises the processed data to be processed, and sending the data processing response message to the mobile equipment.
In other embodiments, when the data volume of the processed to-be-processed data is large, the processed to-be-processed data may be returned to the mobile device based on a data block transmission manner. Specifically, as shown in fig. 9, fig. 9 is a flowchart of another data processing method according to an embodiment of the present invention, in this embodiment, the processed data to be processed is divided into a plurality of second data blocks to be processed, and in this embodiment, on the basis of the embodiment shown in fig. 6, step S203 specifically includes:
step S2031, for a current second to-be-processed data block of the plurality of second to-be-processed data blocks, generating, according to the current second to-be-processed data block, a current data processing response message for instructing the mobile device to obtain a next second to-be-processed data block, and sending the current data processing response message to the mobile device.
The current data processing response message includes the current second pending data block.
Step S2032, in response to the current data acquisition request command returned by the mobile device for the current data processing response message, determining whether only one second to-be-processed data block remains and is not sent.
When it is determined that only one second to-be-processed data block remains and is not transmitted, step S2033 is performed; and when determining that the plurality of second data blocks to be processed remain unsent, returning to execute step S2031.
Step S2033, in response to the current data acquisition request command returned by the mobile device for the current data processing response message, taking only one remaining second to-be-processed data block as the current second to-be-processed data block, generating a current data processing response message for prompting that the second to-be-processed data block of the mobile device has been sent completely according to the current second to-be-processed data block, and sending the current data processing response message to the mobile device.
The method steps in this embodiment correspond to the method steps in the embodiment shown in fig. 5, and please refer to the description of the method steps in the embodiment shown in fig. 5 for details, which are not repeated herein.
In the embodiment of the present invention, various response messages sent by the UICC may be implemented based on a preset second command format and by setting different field values, and the embodiment of the present invention provides a preferred second command format, as shown in the following table:
the second command format can be simultaneously suitable for the block transmission of a large data volume and the whole transmission of a small data volume, and provides basic management of continuation, suspension, retransmission and the like. The parameters of the second command format are described as follows:
NAF-ID and Data are Data that the UICC returns to the mobile device, in the format required in the table.
SW1 is a command processing status word indicating the basic result of command processing, for example, SW1=92 indicates that a response is in progress, and SW1=6A indicates that the response is terminated.
SW2 is a command processing status word indicating the management requirement of the response, wherein the b1 field indicates whether a data block yet to be processed needs to be returned to the mobile device by the response, and the b2 field indicates the requirement on whether the command needs to be retransmitted; the b3b4 field indicates the session number in the command corresponding to the processed data block. The definitions of the remaining fields in SW2 remain.
In the embodiment of the present invention, messages such as the first command response message and the data processing response message sent by the UICC may be implemented based on the second command format.
Based on the above description, in some embodiments, a data processing method is provided, and its complete flow is:
step 1, responding to a GBA-based data processing request sent by a terminal application on mobile equipment, and obtaining data to be processed of the terminal application by the mobile equipment.
And 2, the mobile equipment divides the data to be processed into a plurality of first data blocks to be processed.
And 3, the mobile equipment generates a data processing request subcommand based on the current first data block to be processed and sends the subcommand to the UICC.
Step 4, the UICC receives the current data processing request subcommand, stores the current first to-be-processed data block, and judges whether the current data processing request subcommand is abnormal, if so, generates a first command response message for instructing the mobile device to resend the current first to-be-processed data block and returns the first command response message to the mobile device, and the step 6 is entered; if the judgment result is normal, the step 5 is executed.
Step 5, judging whether all data are received, if not, returning a first command response message for indicating the mobile equipment to send the next first data block to be processed; and if the received data is judged to be all data, the first command response message is not returned, and the step 7 is carried out.
Step 6, the mobile device receives the first command response message, identifies the information in the first command response message, if the first command response message is identified as sending the next first data block to be processed, takes the next first data block to be processed as the current first data block to be processed, and executes step 3; and if the first command response message is identified as sending the current first to-be-processed data block, directly executing the step 3.
And repeating the steps 3 to 6 until all the first to-be-processed data blocks are successfully and completely sent to the UICC.
And 7, processing the data to be processed by the UICC by using the preset shared key.
And step 8, the UICC divides the processed data to be processed into a plurality of second data blocks to be processed.
And step 9, the UICC generates a current data processing response message based on the current second data block to be processed, and adds information in the current data processing response message based on the number of the second data blocks to be processed, so as to prompt the mobile device to continue to extract the next second data block to be processed or prompt the mobile device that all the second data blocks to be processed have been sent.
Step 10, the mobile device receives the current data processing response message, stores the current second to-be-processed data block, identifies the information in the current data processing response message, generates a current data acquisition request command and sends the current data acquisition request command to the UICC when the identified information is that the next second to-be-processed data block is extracted, and only stores the current second to-be-processed data block and does not generate the current data acquisition request command any more when the identified information is that all the second to-be-processed data blocks are sent completely.
And step 11, the UICC receives the data acquisition request command, takes the next second data block to be processed as the current second data block to be processed, and performs step 9.
Repeating steps 9 to 11 until the UICC returns all the second blocks of data to be processed successfully and completely to the mobile device.
An embodiment of the present invention further provides a mobile device, including: a storage module and at least one processor, wherein the storage module stores a computer program, and the computer program is executed by the at least one processor to implement the data processing method implemented by the mobile-based device.
An embodiment of the present invention further provides a UICC, including: a storage module and at least one processor, wherein the storage module stores a computer program, and the computer program is executed by the at least one processor to realize the UICC-based data processing method.
An embodiment of the present invention further provides a user equipment, and as shown in fig. 1, the user equipment includes a mobile device and a UICC, where the mobile device is the mobile device provided by the embodiment of the present invention, and the UICC is the UICC provided by the embodiment of the present invention.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (16)
1. A data processing method is applied to mobile equipment of a user terminal, wherein the user terminal comprises the mobile equipment and a UICC, and the data processing method comprises the following steps:
responding to a data processing request based on GBA sent by a terminal application on the mobile equipment, and acquiring data to be processed of the terminal application;
generating a data processing request command based on the data to be processed, and sending the data processing request command to the UICC, so that the UICC can process the data to be processed by using a preset shared key; the data to be processed comprises a plurality of first data blocks to be processed, the data processing request command comprises a plurality of data processing request subcommands, and each data processing request subcommand correspondingly comprises one first data block to be processed;
acquiring the data to be processed, which is processed by the UICC by using the preset shared key; wherein the processed data to be processed includes a plurality of second data blocks to be processed.
2. The method according to claim 1, wherein the step of generating a data processing request command according to the data to be processed and sending the data processing request command to the UICC comprises:
aiming at the current first data block to be processed in the plurality of first data blocks to be processed, generating a current data processing request subcommand according to the current first data block to be processed;
sending the current data processing request subcommand to the UICC, wherein the current data processing request subcommand comprises the current first data block to be processed;
in response to a current first command response message returned by the UICC for the current data processing request subcommand, taking a next first to-be-processed data block of the plurality of first to-be-processed data blocks as the current first to-be-processed data block, and
and executing the step of generating the current data processing request subcommand according to the current first to-be-processed data block.
3. The method according to claim 1, wherein the step of generating a data processing request command according to the data to be processed and sending the data processing request command to the UICC comprises:
generating the data processing request command according to the complete data to be processed, wherein the data processing request command comprises the complete data to be processed;
sending the data processing request command containing the complete data to be processed to the UICC.
4. The method of claim 2, wherein after the step of sending the current data processing request subcommand to the UICC, further comprising:
receiving a current first command response message returned by the UICC according to the current data processing request subcommand;
if the current first command response message indicates to retransmit the current first data block to be processed, executing the step of generating the current data processing request subcommand according to the current first data block to be processed;
if the current first command response message indicates that the next first to-be-processed data block is to be sent, performing the step of taking the next first to-be-processed data block of the plurality of first to-be-processed data blocks as the current first to-be-processed data block in response to the current first command response message returned by the UICC for the current data processing request subcommand.
5. The method according to claim 1, wherein the step of obtaining the to-be-processed data processed by the UICC using the predetermined shared key comprises:
and receiving a data processing response message returned by the UICC, wherein the data processing response message comprises the processed data to be processed.
6. The method according to claim 1, wherein the step of obtaining the to-be-processed data processed by the UICC using the predetermined shared key comprises:
receiving a current data processing response message returned by the UICC, wherein the current data processing response message comprises a current second data block to be processed in a plurality of second data blocks to be processed and information for indicating to acquire the next second data block to be processed by sending a command;
detecting whether the current data processing response message is abnormal or not;
if the current data processing response message is detected to be abnormal, generating a current data acquisition request command for instructing the UICC to retransmit a current second data block to be processed, and sending the current data acquisition request command to the UICC, so that the UICC can respond to the current data acquisition request command and regenerate a current data processing response message based on the current second data block to be processed;
if it is detected that the current data processing response message is not abnormal, generating a current data acquisition request command for instructing the UICC to transmit a next second data block to be processed, and sending the current data acquisition request command to the UICC, so that the UICC responds to the current data acquisition request command, taking the next second data block to be processed as the current second data block to be processed, and generating a current data processing response message based on the current second data block to be processed;
and executing the step of receiving the current data processing response message returned by the UICC.
7. A data processing method is applied to a UICC of a user terminal, wherein the user terminal comprises a mobile device and the UICC, and the data processing method comprises the following steps:
receiving a data processing request command sent by the mobile equipment, wherein the data processing request command is a command generated by the mobile equipment based on GBA-based to-be-processed data sent by a terminal application; the data to be processed comprises a plurality of first data blocks to be processed, the data processing request command comprises a plurality of data processing request subcommands, and each data processing request subcommand correspondingly comprises one first data block to be processed;
processing the data to be processed by using a preset shared key;
sending the processed data to be processed to the mobile equipment; wherein the processed data to be processed includes a plurality of second data blocks to be processed.
8. The method of claim 7, wherein the step of receiving the data processing request command sent by the mobile device comprises:
receiving the current data processing request subcommand sent by the mobile equipment, wherein the current data processing request subcommand comprises the current first data block to be processed;
responding to the current data processing request subcommand, generating a current first command response message, sending the current first command response message to the mobile equipment, so that the mobile equipment can regard the next first data block to be processed in the plurality of first data blocks to be processed as the current first data block to be processed aiming at the current first command response message, and generating the current data processing request subcommand according to the current first data block to be processed;
and executing the step of receiving the current data processing request subcommand sent by the mobile equipment.
9. The method of claim 7, wherein the step of receiving the data processing request command sent by the mobile device comprises:
and receiving a data processing request command sent by the mobile equipment, wherein the data processing request command is generated by the mobile equipment according to the complete data to be processed, and the data processing request command comprises the complete data to be processed.
10. The method of claim 8, wherein the step of receiving the current data processing request subcommand sent by the mobile device further comprises:
detecting whether the current data processing request subcommand is abnormal or not;
if the data processing request subcommand is detected to be abnormal, generating a current first command response message for instructing the mobile equipment to retransmit the current first data block to be processed, so that the mobile equipment can generate the current data processing request subcommand according to the current first data block to be processed;
if it is detected that the current data processing request subcommand is not abnormal, a current first command response message for instructing the mobile device to transmit the next first data block to be processed is generated, so that the mobile device regards the next first data block to be processed in the plurality of first data blocks to be processed as the current first data block to be processed according to the current first command response message, and the current data processing request subcommand is generated according to the current first data block to be processed.
11. The method of claim 7, wherein the step of sending the processed data to be processed to the mobile device comprises:
generating a data processing response message according to the processed data to be processed, wherein the data processing response message comprises the processed data to be processed;
and sending the data processing response message to the mobile equipment.
12. The method of claim 7, wherein the step of sending the processed data to be processed to the mobile device comprises:
generating a current data processing response message according to the current second data block to be processed aiming at the current second data block to be processed in the second data blocks to be processed;
sending the current data processing response message to the mobile device, wherein the current data processing response message comprises the current second data block to be processed;
responding to a current data acquisition request command returned by the mobile equipment for the current data processing response message to indicate to transmit a next second data block to be processed, taking the next second data block to be processed in the second data blocks to be processed as the current second data block to be processed, and executing the step of generating the current data processing response message according to the current second data block to be processed;
and in response to a current data acquisition request command returned by the mobile device for the current data processing response message indicating retransmission of the current second data block to be processed, directly executing the step of generating the current data processing response message according to the current second data block to be processed.
13. The method according to any of claims 7-12, wherein the pre-provisioned shared key is a Ks _ int _ NAF key.
14. A mobile device, comprising: a storage module having stored therein a computer program which, when executed by at least one of the processors, implements the data processing method of any one of claims 1-6, and at least one processor.
15. A UICC, comprising: a storage module in which a computer program is stored, and at least one processor, the computer program, when executed by the at least one processor, implementing the data processing method of any one of claims 7-13.
16. A terminal, characterized in that it comprises a mobile device and a UICC, wherein said mobile device employs the mobile device of claim 14 and said UICC employs the UICC of claim 15.
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| US8510559B2 (en) * | 2008-04-07 | 2013-08-13 | Interdigital Patent Holdings, Inc. | Secure session key generation |
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| EP2785011A1 (en) * | 2013-03-27 | 2014-10-01 | Gemalto SA | Method to establish a secure voice communication using generic bootstrapping architecture |
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