Danhao Guo

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Dynamic revocation of permissions of installed Android applications has been gaining popularity, because of the increasing concern of security and privacy in the Android platform. However, applications often crash or misbehave when their permissions are revoked, rendering applications completely unusable. Even though Google has officially introduced the new(More)
Modern mobile devices, especially smartphones, are widely equipped with cameras, which enable their owners to capture every memorable moment or scenery, such as parties with friends. However, significant privacy concerns are posed by the potential possibility of revealing a large amount of privacy contained by photos, e.g., portrait of a person. World(More)
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