APK compression storage, restoration and retrieval method and related equipment
A compression storage and file decompression technology, applied in digital data information retrieval, special data processing applications, instruments, etc., can solve the problems of slow sample extraction, huge time consumption, waste of storage space, etc., and achieve the goal of reducing data retrieval time overhead Effect
Inactive Publication Date: 2021-01-29
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
Different Android APPs may refer to the same third-party library, which leads to the repeated storage of the third-party library if the entire APK file is stored completely, which causes a huge waste of storage space, and makes researchers compare the old and new versions of Android applications with Research on familial characteristics, etc. becomes difficult
At the same time, the storage of the complete APK file also causes problems such as slow sample extraction and waste of transmission bandwidth when users only need to analyze part of the data of the Android APP.
[0003] Based on this, an efficient storage mechanism is needed, so that the established sample library can completely track the application update status, and will not consume a huge amount of storage space in the face of the huge number of Android applications and the high update frequency, and at the same time avoid the occurrence that users only target When a certain part of the APK file is researched and the entire APK file is not needed, the APK file needs to be taken out and unpacked, which consumes a huge amount of time
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[0022] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present specification shall have ordinary meanings understood by those skilled in the art to which the present disclosure belongs. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items.
[0024] As mentioned in the background technology section, the public third-party library storage used by existing APPs cannot meet user needs. During the process of implementing the present disclosure, the applicant found that the exi...
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One or more embodiments of the invention provide an APK compression storage, restoration and retrieval method and related equipment, and the method comprises the steps of decompressing an APK file, extracting and storing various types of decompressed data in a classified manner, and sending the data to the user when needed; by means of the novel Android APK large-scale compression storage and efficient retrieval and sample reduction mechanism, the problem that due to the fact that the number of APK files is large and the upgrading frequency is high, repeated storage of third-party library files wastes a large amount of space is solved, and meanwhile the data retrieval time expenditure of the system is reduced as much as possible.
Description
technical field [0001] One or more embodiments of this specification relate to the technical field of mobile terminal information security, in particular to an APK compression storage, restoration and retrieval method and related equipment. Background technique [0002] In order to research and analyze malicious applications in the Android operating system, security researchers need to store Android applications and build an Android application sample library to study the characteristics of malicious applications and their evolution and family characteristics. Most of the existing sample libraries store the APK files completely, and then store their summary information in the database. But in the process of building the sample library, there are also some problems that cannot be ignored. For example, third-party library storage issues for different Android APPs. The third-party library refers to the third-party software package referenced in the Android APP, which provides...
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IPC IPC(8): G06F16/2455G06F16/2457G06F21/56
CPCG06F21/562G06F16/2455G06F16/2457
Inventor 徐国爱高宇昊徐国胜王浩宇聂煜晴
Owner BEIJING UNIV OF POSTS & TELECOMM