Method for protecting pin code on android platform
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United States of America Patent
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Sep 20, 2017
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Apr 22, 2015
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Abstract
The disclosure provides a method for protecting PIN code on Android platform, including: introducing, by Java layer, start event to C layer after invoked by upper layer; invoking, by C layer, Java layer via JNI to generate a password-storage-class-instance after receiving start event, and invoking Java layer after receiving a handle returned by Java layer to monitor input from user; storing, by Java layer, PIN code data into a instance memory when Java layer monitors PIN code data from user, updating storage location identification, and introducing encrypting event to C layer; introducing, by Java layer, confirming event to C layer when Java layer monitors confirmation information from user; accessing, by C layer, the instance via handle to encrypt the PIN code data when receiving encrypting event; and accessing, by C layer, the instance via handle to decrypt the encrypted data in instance memory to obtain PIN code.
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