safety keyboard SDK implementation device and method
A security keyboard and security module technology, applied in the protection of internal/peripheral computer components, etc., can solve problems such as leakage of user sensitive information
Pending Publication Date: 2021-07-23
WUHAN TIANYU INFORMATION IND
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[0004] As a result, even with custom keyboards, sensitive user information is often leaked
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[0046]As the first embodiment of the present invention, a safety keyboard SDK implementation device and method are provided. The device includes: a monitoring module, a touch module, a security module, a display module, a layout module and a storage module; the monitoring module is used to monitor the running Whether the environment is safe; the touch module is used to monitor touch events, and the touch point coordinates are passed to the layout module; the security module provides security algorithm capabilities; the display module is the input port of the security keyboard, used to trigger Display and hide the layout module, and update the input box content according to the touch response of the layout module; the layout module is the layout configuration of the safety keyboard, receives the touch point coordinates of the touch module, locates the key, and encrypts the layout corresponding table; The storage module securely accesses the input string of the safety keyboard in...
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The invention discloses a safe keyboard SDK implementation device and method. The method comprises the steps of monitoring whether a current operating environment is safe or not through a monitoring module; if the operation environment is safe, a random key sequence is generated through a layout module, and a safe keyboard is drawn; the cell character corresponding table is encrypted through the internal safety module and stored in the storage module; real-time memory monitoring and touch monitoring are carried out in the running process of the safety keyboard, if abnormity is monitored, risk information is prompted, and the safety keyboard is closed; if it is monitored that the display module obtains the focus, a layout module UI pops up, If it is monitored that the layout module obtains the focus, the touch point position is sent to the layout module; the layout module is also used for positioning the cells based on the positions of the touch points, calling the safety module to decrypt a cell character corresponding table, operating the input string and updating the display module; and the display module receives the data transmission instruction, decrypts the input string through the safety module, encrypts the input string through the white-box key, responds to the instruction, and deletes the input string copy in the storage module.
Description
technical field [0001] The invention relates to the field of mobile application keyboard safety monitoring, in particular to a safety keyboard SDK implementation device and method. Background technique [0002] The system default keyboard of mobile applications can be easily hijacked by attackers, causing the risk of leakage of input content. Many applications have used custom keyboards instead of system default keyboards to key in sensitive information of users. [0003] However, in recent years, attackers have more and more various means, such as: when using the keyboard, take screenshots or record screens multiple times to record the picture information of the key; hijack the key information of the keyboard through hooks; obtain the encryption key through static analysis; Debug and track the running process of the application, dump memory to obtain private information, etc. [0004] As a result, even with a custom keyboard, sensitive user information is often leaked. C...
Claims
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IPC IPC(8): G06F21/83
CPCG06F21/83
Inventor 周晶董逢华张新访
Owner WUHAN TIANYU INFORMATION IND