US20190147184A1 - Method and apparatus for securely calling fingerprint information and mobile terminal - Google Patents

Method and apparatus for securely calling fingerprint information and mobile terminal Download PDF

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Publication number
US20190147184A1
US20190147184A1 US15/759,512 US201615759512A US2019147184A1 US 20190147184 A1 US20190147184 A1 US 20190147184A1 US 201615759512 A US201615759512 A US 201615759512A US 2019147184 A1 US2019147184 A1 US 2019147184A1
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United States
Prior art keywords
application
unique identification
application process
fingerprint information
calling
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Abandoned
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US15/759,512
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English (en)
Inventor
Qiang Zhang
Lizhong Wang
Haitao Zhou
Kui Jiang
Wei He
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. reassignment GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HE, WEI, JIANG, KUI, WANG, LIZHONG, ZHANG, QIANG, ZHOU, HAITAO
Publication of US20190147184A1 publication Critical patent/US20190147184A1/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
    • G—PHYSICS
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    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/52—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow
    • G06F21/53—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow by executing in a restricted environment, e.g. sandbox or secure virtual machine
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    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
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    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/55—Detecting local intrusion or implementing counter-measures
    • G06F21/554—Detecting local intrusion or implementing counter-measures involving event detection and direct action
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/74—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information operating in dual or compartmented mode, i.e. at least one secure mode
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    • G06F2221/03—Indexing scheme relating to G06F21/50, monitoring users, programs or devices to maintain the integrity of platforms
    • G06F2221/033—Test or assess software
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    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
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    • G06F2221/2133—Verifying human interaction, e.g., Captcha

Definitions

  • Embodiments of the present disclosure relate to fingerprint recognition technologies, and more particularly to, a method for securely calling fingerprint information, an apparatus for securely calling fingerprint information and a mobile terminal.
  • a fingerprint-based authentication Since the fingerprint is characteristic of uniqueness, immutability and difficulty to copy, a fingerprint-based authentication has high security performance and is suitable for applications requiring high security such as unlocking and payment.
  • an application to be authenticated needs to perform data interactions with a corresponding fingerprint verification application, and then compares the obtained fingerprint information with preset fingerprint information, to determine whether the obtained fingerprint information is consistent with the preset fingerprint information.
  • the application can obtain the fingerprint information during the interactions.
  • Some illegitimate applications can use this to access the fingerprint information through a corresponding operating rule and a call function. In this way, the fingerprint information of users is leaked out, such that the security of user information is threatened.
  • Embodiments of the present disclosure provide a method for securely calling fingerprint information, an apparatus for securely calling fingerprint information and a mobile terminal.
  • Embodiments of the present disclosure provide a method for securely calling fingerprint information.
  • the method includes: receiving a request for calling the fingerprint information; determining whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process; and allowing the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • Embodiments of the present disclosure provide an apparatus for securely calling fingerprint information.
  • the apparatus includes: a request receiving module, configured to receive a request for calling the fingerprint information; a legitimate application determining module, configured to determine whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process; and a call allowing module, configured to allow the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • Embodiments of the present disclosure provide a mobile terminal.
  • the mobile terminal includes a fingerprint sensor and an apparatus for securely calling fingerprint information coupled to the fingerprint sensor.
  • the apparatus for securely calling fingerprint information includes: a request receiving module, configured to receive a request for calling the fingerprint information; a legitimate application determining module, configured to determine whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process; and a call allowing module, configured to allow the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • FIG. 1 is a flow chart of a method for securely calling fingerprint information according to a first embodiment of the present disclosure
  • FIG. 2 is a flow chart of a method for securely calling fingerprint information according to a second embodiment of the present disclosure
  • FIG. 3 is a flow chart of a method for securely calling fingerprint information according to a third embodiment of the present disclosure
  • FIG. 4 is a flow chart of a method for securely calling fingerprint information according to a fourth embodiment of the present disclosure
  • FIG. 5 is a block diagram of an apparatus for securely calling fingerprint information according to a fifth embodiment of the present disclosure.
  • FIG. 6 is a block diagram of a mobile terminal according to a sixth embodiment of the present disclosure.
  • Embodiments of the present disclosure provide a method for securely calling fingerprint information.
  • the method includes: receiving a request for calling the fingerprint information; determining whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process; and allowing the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • the method further includes: when it is determined that the application corresponding to the application process is an illegitimate application, forbidding the application corresponding to the application process to call the fingerprint information, and outputting a warning message.
  • the method before receiving the request for calling the fingerprint information, the method further includes: generating a second unique identification of the application according to a unique identification public key of the application when installing the application, and storing the second unique identification.
  • Determining whether the application corresponding to the application process is the legitimate application according to the first unique identification in the application process sending the request for calling the fingerprint information includes: matching the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification, and determining that the application corresponding to the application process is the legitimate application when the first unique identification in the application process is matched with the second unique identification successfully.
  • storing the second unique identification includes: storing the second unique identification in an application based on a TrustZone environment, and administrator rights being required run the application based on the TrustZone environment.
  • Matching the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification includes: accessing the application based on the TrustZone environment, and matching the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification stored in the application based on the TrustZone environment.
  • accessing the application based on the TrustZone environment, and matching the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification stored in the application based on the TrustZone environment includes: obtaining the second unique identification by accessing the application based on the TrustZone environment; determining whether the second unique identification is same as the first unique identification in the application process sending the request for calling the fingerprint information; determining that the first unique identification in the application process is matched with the second unique identification successfully when the second unique identification is the same as the first unique identification in the application process; and determining that the first unique identification in the application process fails to match with the second unique identification when the second unique identification is different from the first unique identification in the application process.
  • the method further includes: confusing the first unique identification in the application process with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • Allowing the application to call the fingerprint information includes: extracting the first unique identification from the confusion instruction, matching the first unique identification with the second unique identification, allowing the application corresponding to the application process to call the fingerprint information when the first unique identification is matched with the second unique identification successfully.
  • confusing the first unique identification in the application process with the instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate the confusion instruction includes: adding the first unique identification in the application process to the instruction for calling the fingerprint information sent by the application corresponding to the application process according to a preset location, to generate the confusion instruction.
  • inventions of the present disclosure provide an apparatus for securely calling fingerprint information.
  • the apparatus includes: a request receiving module, configured to receive a request for calling the fingerprint information; a legitimate application determining module, configured to determine whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process sending the request for calling the fingerprint information; and a call allowing module, configured to allow the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • the apparatus further includes a warning message outputting module.
  • the warning message outputting module is configured to forbid the application corresponding to the application process to call the fingerprint information, and output a warning message when it is determined that the application corresponding to the application process is an illegitimate application.
  • the apparatus further includes an identification generating module and an identification storing module.
  • the identification generating module is configured to generate a second unique identification of the application according to a unique identification public key of the application when installing the application.
  • the identification storing module is configured to store the second unique identification.
  • the legitimate application determining module includes an identification matching unit.
  • the identification matching unit is configured to match the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification, and determine that the application corresponding to the application process is the legitimate application when the first unique identification in the application process is matched with the second unique identification successfully.
  • the identification storing module is configured to store the second unique identification in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • the identification matching unit is configured to access the application based on the TrustZone environment, and match the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification stored in the application based on the TrustZone environment.
  • the identification matching unit is further configured to: obtain the second unique identification by accessing the application based on the TrustZone environment; determine whether the second unique identification is same as the first unique identification in the application process sending the request for calling the fingerprint information; determine that the first unique identification in the application process is matched with the second unique identification successfully when the second unique identification is the same as the first unique identification in the application process; and determine that the first unique identification in the application process fails to match with the second unique identification when the second unique identification is different from the first unique identification in the application process.
  • the apparatus further includes a confusion instruction generating module.
  • the confusion instruction generating module is configured to confuse the first unique identification in the application process with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • the identification matching unit is configured to extract the first unique identification from the confusion instruction, match the first unique identification with the second unique identification, and allow the application corresponding to the application process to call the fingerprint information when the first unique identification is matched with the second unique identification successfully.
  • the confusion instruction generating module is further configured to add the first unique identification in the application process to the instruction for calling the fingerprint information sent by the application corresponding to the application process according to a preset location, to generate the confusion instruction.
  • inventions of the present disclosure further provide a mobile terminal.
  • the mobile terminal includes a fingerprint sensor and an apparatus for securely calling fingerprint information coupled to the fingerprint sensor.
  • the apparatus for securely calling fingerprint information includes: a request receiving module, configured to receive a request for calling the fingerprint information; a legitimate application determining module, configured to determine whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process sending the request for calling the fingerprint information; and a call allowing module, configured to allow the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • the apparatus for securely calling fingerprint information further includes a warning message outputting module.
  • the warning message outputting module is configured to forbid the application corresponding to the application process to call the fingerprint information, and output a warning message when it is determined that the application corresponding to the application process is an illegitimate application.
  • the apparatus for securely calling fingerprint information further includes an identification generating module and an identification storing module.
  • the identification generating module is configured to generate a second unique identification of the application according to a unique identification public key of the application when installing the application.
  • the identification storing module is configured to store the second unique identification.
  • the legitimate application determining module includes an identification matching unit.
  • the identification matching unit is configured to match the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification, and determine that the application corresponding to the application process is the legitimate application when the first unique identification in the application process is matched with the second unique identification successfully.
  • the identification storing module is configured to store the second unique identification in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • the identification matching unit is configured to access the application based on the TrustZone environment, and match the first unique identification in the application process sending the request for calling the fingerprint information with the second unique identification stored in the application based on the TrustZone environment.
  • the identification matching unit is further configured to: obtain the second unique identification by accessing the application based on the TrustZone environment; determine whether the second unique identification is same as the first unique identification in the application process sending the request for calling the fingerprint information; determine that the first unique identification in the application process is matched with the second unique identification successfully when the second unique identification is the same as the first unique identification in the application process; and determine that the first unique identification in the application process fails to match with the second unique identification when the second unique identification is different from the first unique identification in the application process.
  • the apparatus for securely calling fingerprint information further includes a confusion instruction generating module.
  • the confusion instruction generating module is configured to confuse the first unique identification in the application process with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • the identification matching unit is configured to extract the first unique identification from the confusion instruction, match the first unique identification with the second unique identification, and allow the application corresponding to the application process to call the fingerprint information when the first unique identification is matched with the second unique identification successfully.
  • FIG. 1 illustrates a first embodiment of the present disclosure.
  • FIG. 1 is a flow chart of a method for securely calling fingerprint information according to the first embodiment of the present disclosure.
  • the method in this embodiment may be performed by an apparatus for securely calling fingerprint information.
  • the apparatus may be implemented by hardware and/or software, and may generally be integrated in a mobile terminal.
  • the method for securely calling fingerprint information includes the following.
  • the application When the application needs to use the fingerprint information, the application will send a request to a terminal system to call the fingerprint information.
  • the request is configured to call a lower software interface, i.e., a channel with which the application accesses data resources.
  • the terminal system After the terminal system receives the request for calling the fingerprint information, the terminal system interacts with the application, such that the application obtains the fingerprint information.
  • each application has a unique identification Uid.
  • the Android system may assign a unique identification Uid with distinct normal level based on a signature certificate of each application. Since there is only one unique identification Uid for the same application, by using the unique identification Uid of the application, it can be determined whether the application is the legitimate application which is allowed to call the fingerprint information.
  • process information of the application can be obtained. An application name in process information of a non-system application is started with “app”, and appended with a serial number. The unique identification Uid in the application process can be obtained according to the serial number, and it can be determined whether the application corresponding to the application process is the legitimate application which is allowed to call the fingerprint information according to the unique identification Uid.
  • the application corresponding to the application process is allowed to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • a judgment result at block S 102 it is possible to determine whether the application corresponding to the application process sending the request for calling the fingerprint information is the legitimate application. When it is determined that the application corresponding to the application process sending the request for calling the fingerprint information is the legitimate application, the application corresponding to the application process is allowed to call the fingerprint information.
  • the application corresponding to the application process is the legitimate application according to the unique identification of the application sending the request for calling the fingerprint information, and refuse a request of the illegitimate application for accessing the fingerprint information, such that the security level of the fingerprint information is improved, and the security of user fingerprint information is ensured.
  • the method further includes: when it is determined that the application corresponding to the application process is an illegitimate application, forbidding the application corresponding to the application process to call the fingerprint information, and outputting a warning message.
  • the application corresponding to the application process is forbidden from calling the fingerprint information, to prevent the illegitimate application from accessing the fingerprint information.
  • a corresponding warning message will be sent to the user, to prompt the user that the illegitimate application attempts to access the fingerprint information, so that the user can process the illegitimate application according to the warning message, to ensure security of personal information of the user.
  • FIG. 2 illustrates a second embodiment of the present disclosure.
  • This embodiment is based on the method for securely calling fingerprint information provided by the first embodiment of the present disclosure.
  • the following steps are introduced: generating a unique identification of the application according to a unique identification public key of the application when installing the application, and storing the unique identification of the application. Determining whether the application corresponding to the application process is the legitimate application according to the unique identification in the application process sending the request for calling the fingerprint information is optimized as: matching the unique identification in the application process sending the request for calling the fingerprint information with the stored unique identification, and determining that the application corresponding to the application process is the legitimate application when the matching is successful.
  • the method for securely calling fingerprint information includes the following.
  • a unique identification of the application is generated according to a unique identification public key of the application when installing the application.
  • the legitimate application requires official authorization, such as official authorization from Android developer Google, mobile phone manufacturers, or the like.
  • the application is digitally signed with the unique identification public key obtained through the official authorization, to indicate legitimacy and security of the application.
  • the digital signature can be permanently combined with signed information, and cannot be removed from the information. Since the public key is uniquely identified, the unique identification Uid of the application can be generated according to the unique identification public key of the application when the application is installed.
  • the unique identification of the application is stored.
  • the unique identification Uid generated at block S 201 may be stored, and the unique identification Uid is stored in a storage area that is safe and cannot be accessed arbitrarily.
  • the unique identification in the application process sending the request for calling the fingerprint information is matched with the stored unique identification, and it is determined that the application corresponding to the application process is the legitimate application when the unique identification in the application process is matched with the stored unique identification successfully.
  • the unique identification Uid of the application sending the request for calling the fingerprint information is obtained using the process information, and the obtained unique identification Uid is matched with the Uid stored at block S 202 .
  • the matching is successful, it is determined that the application sending the request for calling the fingerprint information is the legitimate application.
  • the application corresponding to the application process is allowed to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • the following steps are introduced: generating the unique identification of the application according to a unique identification public key of the application when installing the application, and storing the unique identification of the application. Determining whether the application corresponding to the application process is the legitimate application according to the unique identification in the application process sending the request for calling the fingerprint information is optimized as: matching the unique identification in the application process sending the request for calling the fingerprint information with the stored unique identification, and determining that the application corresponding to the application process is the legitimate application when the matching is successful. In this way, it is able to use a digital signature mechanism to determine whether the application that calls the fingerprint information is a legitimate authorized application, such that the security of the user fingerprint information is ensured.
  • FIG. 3 illustrates a third embodiment of the present disclosure.
  • This embodiment is based on the method for securely calling fingerprint information provided by the second embodiment of the present disclosure.
  • storing the unique identification of the application is optimized as: storing the unique identification in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • Matching the unique identification in the application process sending the request for calling the fingerprint information with the stored unique identification is optimized as: accessing the application based on the TrustZone environment, and matching the unique identification in the application process sending the request for calling the fingerprint information with the unique identification stored in the application based on the TrustZone environment.
  • the method for securely calling fingerprint information includes the following.
  • a unique identification of the application is generated according to a unique identification public key of the application when installing the application.
  • the unique identification of the application is stored in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • the unique identification Uid of the application generated at block S 301 is stored in the application based on the TrustZone environment.
  • the TrustZone is a security architecture that aims to protect devices against various security threats, which is mainly implemented by dividing hardware and software into two zones. The two zones include a security zone and a normal zone. Normal software can only access the normal zone, and specific security software can access the security zone and the normal zone.
  • the administrator rights i.e., root rights
  • the application based on the TrustZone environment is accessed, a matching is performed on the unique identification Uid in the application process sending the request for calling the fingerprint information and the unique identification Uid stored in the application based on the TrustZone environment, and it is determined that the application corresponding to the application process is the legitimate application when the matching is successful.
  • the system accesses the application based on the TrustZone environment, and obtains the stored unique identification Uid through the application based on the TrustZone environment.
  • the unique identification Uid in the application process sending the request for calling the fingerprint information is compared with the obtained unique identification Uid stored at block S 302 , to determine whether they are the same. When they are the same, it is determined that the matching is successful. When they are different, it is determined that the matching is failed. When the matching is successful, it is determined that the application corresponding to the application process sending the request for calling the fingerprint information is the legitimate application.
  • accessing the application based on the TrustZone environment, and matching the unique identification Uid in the application process sending the request for calling the fingerprint information with the unique identification Uid stored in the application based on the TrustZone environment is optimized as: obtaining the stored unique identification by accessing the application based on the TrustZone environment; determining whether the stored unique identification is the same as the unique identification in the application process sending the request for calling the fingerprint information; determining that the matching is successful when they are the same; and determining that the matching is failed when they are different.
  • the application corresponding to the application process is allowed to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • storing the unique identification of the application is optimized as: storing the unique identification in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • matching the unique identification in the application process sending the request for calling the fingerprint information with the stored unique identification is optimized as: accessing the application based on the TrustZone environment, and matching the unique identification Uid in the application process sending the request for calling the fingerprint information with the unique identification Uid stored in the application based on the TrustZone environment. In this way, the generated unique identification Uid can be stored in the application based on the TrustZone environment, thereby preventing the generated unique identification Uid from being embezzled and thus avoiding leakage of the fingerprint information.
  • FIG. 4 illustrates a fourth embodiment of the present disclosure.
  • This embodiment is based on the method for securely calling fingerprint information provided by the first embodiment of the present disclosure.
  • following steps are introduced: confusing the unique identification in the application process with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • allowing the application to call the fingerprint information is optimized as: extracting the unique identification from the confusion instruction, matching the extracted unique identification with the stored unique identification, and allowing the application corresponding to the application process to call the fingerprint information when the matching is successful.
  • the method for securely calling fingerprint information includes the following.
  • the unique identification in the application process is confused with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • Some malicious applications do not run as services or threads. Instead, the malicious application generates and obtains a thread that can be injected into an address space of the application, and operates the private address space of other applications by using a dynamic embedded technology, so as to obtain data of the application.
  • the malicious application is injected into the legitimate application that can call the fingerprint information, since the malicious application is not displayed as a process, but embedded in the process of the legitimate application, it cannot prevent the malicious application from obtaining the fingerprint information using the unique identification Uid.
  • the unique identification Uid in the application process is confused with the instruction for calling the fingerprint information sent by the application to generate the confusion instruction.
  • the instruction for calling the fingerprint information sent by the application is the request for calling the fingerprint information at block S 401 .
  • the unique identification Uid in the application process is added in the instruction for calling the fingerprint information sent by the application at a preset location. For example, a first bit of the unique identification Uid is added to the instruction at the third character position, a second bit of the unique identification Uid is added to the instruction at the seventh character position. In this way, the unique identification Uid in the application process is added to the instruction for calling the fingerprint information sent by the application according to the preset location, and the added instruction is taken as the confusion instruction.
  • confusing the unique identification in the application process with the instruction for calling the fingerprint information sent by the application corresponding to the application process to generate the confusion instruction is optimized as: adding the unique identification in the application process to the instruction for calling the fingerprint information sent by the application corresponding to the application process according to the preset location, to generate the confusion instruction.
  • the unique identification in the confusion instruction is extracted, a matching is performed on the extracted unique identification and the stored unique identification, and the application corresponding to the application process is allowed to call the fingerprint information when the matching is successful.
  • the unique identification Uid is extracted from the confusion instruction according to a preset rule. For example, the first bit of the unique identification Uid is extracted from the confusion instruction at the third character position, and the second bit of the unique identification Uid is extracted from the confusion instruction at the seventh character position. In this way, the unique identification Uid is extracted from the confusion instruction, and the matching is performed on the extracted unique identification Uid and the stored unique identification Uid. Since the injected malicious application uses the dynamic embedded technology to operate the private address space of the legitimate application, the injected instruction is not the instruction for calling the fingerprint information sent by the legitimate application and is not confused using the way at block S 401 . The instruction for calling the fingerprint information from the injected malicious application does not include the unique identification Uid. By matching the extracted unique identification Uid with the stored unique identification Uid, it is able to determine whether the instruction for calling the fingerprint information is sent by the legitimate application or injected by the malicious application, and the application is allowed to call the fingerprint information only when the matching is successful.
  • the following steps are introduced: confusing the unique identification in the application process with the instruction for calling the fingerprint information sent by the application, to generate the confusion instruction.
  • allowing the application to call the fingerprint information is optimized as: extracting the unique identification from the confusion instruction, matching the extracted unique identification with the stored unique identification, and allowing the application corresponding to the application process to call the fingerprint information when the matching is successful. In this way, it is able to prevent the fingerprinting information from being obtained by the malicious application injected into the legitimate application, thereby further improving the security of the fingerprint information.
  • FIG. 5 is a block diagram of an apparatus for securely calling fingerprint information according to a fifth embodiment of the present disclosure.
  • the apparatus for securely calling fingerprint information includes a request receiving module 510 , a legitimate application determining module 520 and a call allowing module 530 .
  • the request receiving module 510 is configured to receive a request for calling the fingerprint information.
  • the legitimate application determining module 520 is configured to determine whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process.
  • the call allowing module 530 is configured to allow the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • the embodiment it is able to determine whether the application is the legitimate application according to the unique identification of the application sending the request for calling the fingerprint information, and refuse a request of the illegitimate application for accessing the fingerprint information, such that the security level of the fingerprint information is improved, and the security of the user fingerprint information is ensured.
  • the apparatus further includes a warning message outputting module 540 .
  • the warning message outputting module 540 is configured to forbid the application corresponding to the application process to call the fingerprint information, and output a warning message when it is determined that the application corresponding to the application process is an illegitimate application.
  • the apparatus further includes an identification generating module 550 and an identification storing module 560 .
  • the identification generating module 550 is configured to generate a second unique identification of the application according to a unique identification public key of the application when installing the application.
  • the identification storing module 560 is configured to store the second unique identification.
  • the legitimate application determining module 520 includes an identification matching unit 521 .
  • the identification matching unit 521 is configured to match the first unique identification in the application process with the second unique identification, and determine that the application corresponding to the application process is the legitimate application when the first unique identification in the application process is matched with the second unique identification successfully.
  • the identification storing module 560 is configured to store the second unique identification in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • the identification matching unit 521 is configured to access the application based on the TrustZone environment, and match the first unique identification in the application process with the second unique identification stored in the application based on the TrustZone environment.
  • the identification matching unit 521 is further configured to: obtain the second unique identification by accessing the application based on the TrustZone environment; determine whether the second unique identification is same as the first unique identification in the application process; determine that the first unique identification in the application process is matched with the second unique identification successfully when the second unique identification is the same as the first unique identification in the application process; and determine that the first unique identification in the application process fails to match with the second unique identification when the second unique identification is different from the first unique identification in the application process.
  • the apparatus further includes a confusion instruction generating module 570 .
  • the confusion instruction generating module 570 is configured to confuse the first unique identification in the application process with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • the identification matching unit 521 is configured to extract the first unique identification from the confusion instruction, match the first unique identification with the second unique identification, and allow the application corresponding to the application process to call the fingerprint information when the first unique identification is matched with the second unique identification successfully.
  • the confusion instruction generating module 570 is further configured to add the first unique identification in the application process to the instruction for calling the fingerprint information sent by the application corresponding to the application process according to a preset location, to generate the confusion instruction.
  • the above apparatus for securely calling fingerprint information may execute the method for securely calling fingerprint information provided by embodiments of the present disclosure, and includes corresponding functions configured to perform the method, and has beneficial effects.
  • FIG. 6 is block diagram of a mobile terminal according to a sixth embodiment of the present disclosure.
  • the mobile terminal 60 includes a fingerprint sensor 61 and an apparatus 62 for securely calling fingerprint information coupled to the fingerprint sensor.
  • the apparatus 62 for securely calling fingerprint information includes a request receiving module, a legitimate application determining module and a call allowing module.
  • the request receiving module is configured to receive a request for calling the fingerprint information.
  • the legitimate application determining module is configured to determine whether an application corresponding to an application process sending the request for calling the fingerprint information is a legitimate application according to a first unique identification in the application process.
  • the call allowing module is configured to allow the application corresponding to the application process to call the fingerprint information when it is determined that the application corresponding to the application process is the legitimate application.
  • the apparatus further includes a warning message outputting module.
  • the warning message outputting module is configured to forbid the application corresponding to the application process to call the fingerprint information, and output a warning message when it is determined that the application corresponding to the application process is an illegitimate application.
  • the apparatus further includes an identification generating module and an identification storing module.
  • the identification generating module is configured to generate a second unique identification of the application according to a unique identification public key of the application when installing the application.
  • the identification storing module is configured to store the second unique identification.
  • the legitimate application determining module includes an identification matching unit.
  • the identification matching unit is configured to match the first unique identification in the application process with the second unique identification, and determine that the application corresponding to the application process is the legitimate application when the first unique identification in the application process is matched with the second unique identification successfully.
  • the identification storing module is configured to store the second unique identification in an application based on a TrustZone environment. Administrator rights are required to run the application based on the TrustZone environment.
  • the identification matching unit is configured to access the application based on the TrustZone environment, and match the first unique identification in the application process with the second unique identification stored in the application based on the TrustZone environment.
  • the identification matching unit is further configured to: obtain the second unique identification by accessing the application based on the TrustZone environment; determine whether the second unique identification is same as the first unique identification in the application process; determine that the first unique identification in the application process is matched with the second unique identification successfully when the second unique identification is the same as the first unique identification in the application process; and determine that the first unique identification in the application process fails to match with the second unique identification when the second unique identification is different from the first unique identification in the application process.
  • the apparatus further includes a confusion instruction generating module.
  • the confusion instruction generating module is configured to confuse the first unique identification in the application process with an instruction for calling the fingerprint information sent by the application corresponding to the application process, to generate a confusion instruction.
  • the identification matching unit is configured to extract the first unique identification from the confusion instruction, match the first unique identification with the second unique identification, and allow the application corresponding to the application process to call the fingerprint information when the first unique identification is matched with the second unique identification successfully.
  • the mobile terminal may further includes a radio frequency (RF) circuit, a memory including one or more computer-readable storage mediums, an input unit, a display unit, a sensor, an audio circuit, a wireless fidelity (WiFi) module, a processor including one or more processing cores, a power supply and other components.
  • RF radio frequency
  • the apparatus 62 for securely calling fingerprint information may be integrated in the processor.
  • the mobile terminal including the apparatus for securely calling fingerprint information can determine whether the application corresponding to the application process is the legitimate application according to the unique identification of the application sending the request for call the fingerprint information, and refuse request of the illegitimate application for accessing the fingerprint information.
  • the security level of the fingerprint information is improved, and the security of the user fingerprint information is ensured.
  • the program may be stored in a computer readable storage medium such as a memory of a terminal, and be executed by at least one processor in the terminal. When the program is executed, the steps of the fingerprint information secure call method in the above-described embodiments may be included.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), or the like.
  • modules or steps of the present disclosure may be implemented by common computing devices, which can be centralized on a single computing device or distributed on a network formed by multiple computing devices. Alternatively, they may be implemented by program code executable by a computer device, so that they can be stored in a storage device and executed by the computing device, or may be implemented by making them into individual integrated circuit module respectively, or making multiple modules or steps of them into a single integrated circuit module. In this way, the present disclosure is not limited to any particular combination of hardware and software.

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US10713381B2 (en) 2020-07-14
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US20190156059A1 (en) 2019-05-23
EP3336734A4 (fr) 2018-06-27

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