Code virtualization encryption method, terminal and storage medium

Abstract

The invention discloses a code virtualization encryption method, a terminal and a storage medium, and the method comprises the steps: analyzing a binary file of a DEX file according to the structure of the binary file of the DEX file during encryption, and generating an analysis result; traversing to obtain all methods in the DEX file, and obtaining binary instruction data of corresponding code segments according to an analysis result; extracting binary instructions of all methods in the DEX file, and setting a current method identifier as a native method; generating a random replacement table, and replacing an operation code and an operand of the binary instruction with an instruction which can only be recognized by a custom system virtual machine; generating a virtual machine interpreterengine library containing the native method according to the processed method list and the random replacement table; and when the virtualized and encrypted application runs to the virtualized and processed native method, enabling a system virtual machine to deliver the execution right to a custom virtual machine interpreter for execution, and return an execution result.

Description

technical field [0001] The invention relates to the technical field of code encryption, in particular to a code virtualization encryption method, a terminal and a storage medium. Background technique [0002] The traditional Android Java code encryption technology needs to decrypt the encrypted data in the memory during the running phase, so there is a memory DUMP (backup file system, dump, that is, dump the content of the memory at a certain moment into a file) risks of. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The main purpose of the present invention is to provide a code virtualization encryption method, terminal and storage medium, aiming to solve the traditional Android Java code encryption technology in the prior art. During the running phase, the encrypted data needs to be decrypted in the memory , so there is a risk of being memory DUMP. [0005] In order to achieve the above object, the prese...

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a code virtualization encryption method, terminal and storage medium, aiming to solve the traditional Android Java code encryption technology in the prior art. During the running phase, the encrypted data needs to be decrypted in the memory , so there is a risk of being memory DUMP

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