PROTECTION METHOD FOR PIN CODE UNDER ANDROID PLATFORM

摘要

Provided is a protection method for a PIN code under an Android platform. The method comprises: a Java layer transmitting a start event to a C layer after receiving an upper layer invoke; the C layer invoking the Java layer through a JNI to generate a password storage class example after receiving the start event, and re-invoking the Java layer to enable the Java layer to monitor a user input after receiving a handle returned by the Java layer; the Java layer storing PIN code data in an example memory when monitoring the PIN code data input by the user, updating a storage location identifier, transmitting an encrypted event to the C layer, and transmitting an acknowledgement event to the C layer when monitoring user input acknowledge information; and the C layer encrypting the PIN code data through a handle access example when receiving the encrypted event, and deciphering encrypted data in the example memory through the handle access example to obtain the PIN code when receiving the acknowledgement event. The embodiment of the present invention improves the security of a PIN code under an Android platform.