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Comparison on software security, we need to understand the signature mechanism of Android APK. For better understanding, let's start with a batch processing command of the Auto-Sign tool.
InAPK CrackIn this article, we learned that to sign an unsigned APK, you can use a tool called Auto-sign. The Auto-sign tool actually runs a batch processing command called Sig
[Android Application Development] Android APK decompilation obfuscation, decompilation, and androidapk
Decompilation Tool: Summarize the linux, windows, and mac versions, and put them on CSDN for download;
--CSDN:Http://download.csdn.net/detail/han1202012/8221787
Octopus @ octopus :~ /Decompiler $ tree-L 2. ├ ── linux │ ── apktool │ ── dex2jar-0.0.9.15 │ jd-gu
pay attention to the Android platform certificate is self-signed, also said that do not need authority to issue, digital certificate distribution agencies and all people are the same, are developers themselves, developers to generate public private key pairs do not need to submit to the authority to verify.
Read signaturesome time need to obtain a specific APK (installed or not installed) signature inform
by the current sdk, the first is to check the api level folders under the platforms directory under the sdk directory:
Second, we can use "Android SDK Manager" to determine which levels of Android APIs are installed:
Through the above two methods, we can know how many levels of Android systems are currently supporte
control, but allows developers to control the component position through the X and Y coordinates themselves. When the AbsoluteLayout layout is used, the layout container no longer manages the positions and sizes of child components-all of which must be controlled by developers themselves.
Figure 7-1 absolute LayoutFigure 7-2 absolute Layout
Note: The AbsoluteLayout layout is outdated. Mobile phones running Android applications are often very diff
Sometimes we want to learn from others ' good works, or we want to study and learn. How to achieve it in the case of only apk. In fact, there is a way, that is, decompile apk.
If the content is also i from other friends there to find, does not belong to my original, but still sent up for your friends for reference, I hope you can learn to bring convenience.
A. decompile
Players are not familiar with APK. Do you know about APK modification? For example, you can perform Chinese-English Version modification, modify functions, Modify text descriptions, and remove advertisements. This article describes the basic knowledge, structure, unpackage, package, and signature of the APK file, as we
First, prefaceFrom the beginning of this article we began our path of cracking, the previous several articles in how we explain how to strengthen our apk, to prevent others to crack, then we will start to crack our apk, for the previous encryption method of using the corresponding crack technology, The hack in Android can be broadly divided into static analysis a
Manager" to determine which level of Android API we have installed:With the above two methods we can know that our system now supports the level of the API levels of the Android system, of course, if you do not meet your needs, you can download more to meet the requirements of the Android SDK
com.android.vending.licensing.ilicensingservice# in all classes Native method does not confuse-keepclasseswithmembernames class * {native -- project.properties configuration obfuscation file :Target=android-19proguard.config=proguard.cfg(2) package apk file (Create new KeyStore)A. set up a packaged project : Right-cl
The game will use a lot of configuration files, each project group according to their own different needs will choose different storage format, such as using JSON or SQLite to store data. Here we only discuss the situation of using SQLite. In general, you will choose to put it in a read-write directory, so that SQLite can directly use its original IO API to read the DB file. This is not a problem on a PC or iOS platform. However, if the game is instal
Android apk incremental upgradePreface
Although this article seems very simple, there are many problems encountered in the experiment. For example, the ndk compilation error under andorid studio, which is the final feasible method presented in this article.The required resources bzip2 bsdiff ndk two different versions of the test apk principle on the server side,
mechanism of apk. Even so, it sounds a little excited, isn't it?Working Principle
As shown in, the host Program loads the apk to the file system, such as the SD card, and then executes the activity in the apk through an activity called proxy.
In theory, DexClassLoader, PathClassLoader, and URLClassLoader can be used f
ZZ: http://blog.csdn.net/sergeycao/article/details/8198205
I. How to preset the APK with source code into the system?1) Under packages/apps, create a new folder with the name of the apk to be preset, and prefabricate an APK named test as an example.2) copy the source code of test APK to the test folder and delete the/b
The android.apk file is actually a zip file that can be opened directly with WinRAR.
As shown in:
Includes a META-INF directory
A res directory
An androidmanifest. xml
A classes. Dex
Androidmanifest. XML must be defined and contained by each application. It describes the application name, version, permission, referenced library file, and other information. For
Recently Tinker Android, encountered a problem, because there is no root permissions, need to invoke intent installation apk, but need to get the user is installed (such as, the user clicked back or cancel), check a lot of articles, and finally can be resolved, but there are flaws, the solution is as follows:
public static void InstallPackage (context, file, int
Reprinted please indicate the source: http://www.blogjava.net/zh-weir/arch...11/352099.html
APK Crack
Before writing this article, I was hesitant to start a Pandora box? Later, we thought that similar Android malware had already been released, indicating that many software security experts or hackers are familiar with this. As a evangelist, I only tell you the secrets that a few people know. As a result, I
Android .intentobject use. APK DecompilationIntentobject decompilation using .apkJiangdg_VIPhttp: // blog.csdn.net/u012637501 the first three sections mainly learn the functions, attributes, and values passing between different activities of the Intent object. This section focuses on the usage of the Intent object. In my speech recognition project, you can use Inteng objects to start in-app components, syst
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