Research Article
Self-Controllable Mobile App Protection Scheme Based on Binary Code Splitting
Algorithm 1
Pseudocode for splitting original app.
| | Input: target app (original.apk) | | | Output: remaining target tree and split code tree | | (1) | Tree targetTree, newTree; | | (2) | Class splitClass; | | (3) | Method splitMethod; | | (4) | | | (5) | targetTree = makeTree (original.dex); | | (6) | selectSplittingTarget (targetTree, splitClass, splitMethod); | | (7) | | | (8) | ASMDEX.init (newTree); | | (9) | ASMDEX.makeClassNode (newTree, splitClass); | | (10) | ASMDEX.makeMethodNode (newTree, splitMethod); | | (11) | | | (12) | if splitMethod.Type = = STATIC then | | (13) | convertMethodCalleeToStub (targetTree, newTree, splitClass, splitMethod); | | (14) | else | | (15) | convertToAbstract (targetTree, splitClass, splitMethod); | | (16) | deleteMethodBody (targetTree, splitMethod); | | (17) | | | (18) | for Class class:targetTree.Classes do | | (19) | if findMethodCaller (class, splitMethod) = = true then | | (20) | convertToStub (class, newTree, splitMethod); | | (21) | end if | | (22) | end for | | (23) | end if |
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