Hydra-Bite: Static Taint Immunity, Split, and Complot Based Information Capture Method for Android Device

Algorithm 1

Main loop of key information split.

(1)define sApiList <apiMap<api_Name, perm_Name >>:

List<Map<String, String>>

(2)define kPermList <permMap<perm_Name, flag>>:

List<Map<String, String>>

(3)while sApiList ≠ ∅ do

(4)for    to sApiList.size()

//Traversing list of key-value mappings for sensitive APIs

(5)map sApiList.get(i).getKey() to perm via the Mapping file

provided by Pscout

//Mapping sensitive APIs to permissions corresponded

(6)sApiList.get(i).getValue()←perm

(7)if perm is the first time show then

//Remove the duplicate permissions after the mapping

(8)swich(perm)

//Classify permissions before add them into the second key-value mapping

(9)case perm is transfer class permission:

(10)permMap.getKey() ← perm

(11)permMap.getValue() ←  trans

(12)add Map2 to kPList

(13)clear Map2

(14)case perm is information read class permission:

(15)permMap.getKey()←perm

(16)permMap.getValue()← read

(17)add Map2 to kPList

(18)clear Map2

(19)case perm is other permission:

(20)drop perm

(21)else

(22)drop perm

(23)end if

(24)end for

(25)end while