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Software Security and Reverse Analysis in Android [2]-apk anti-cracking technology and security protection mechanism
In Android Application Development, after we develop the software, we do not want others to decompile and crack our applications, and cannot modify our code logic. In fact, in consideration of the security mechanism of applications, we hope that ou
This article is translated from foreign literature, the original link please see the article at the bottomAs mentioned before, application developers are pinning their application's security on some mechanism in order to protect their applications from being analyzed and manipulated by others. There are many mechanisms that can be used to protect applications, and the effect and difficulty of implementation are characteristic. There is a class of application
reply to the confirmation of the deletion of the message secretly, each month to deduct the user 3 to 5 dollars of money to profit. Believe that more than 85% users will not find the issue of the charges, a few small amount of money is not so easy to detect, but in the long run, the loss is not to be belittled. NBSP;NBSP;NBSP;NBSP;NBSP;NBSP; How to help developers to Android app program encryption, effectively avoid the above hidden dangers?
Meituan Android resource obfuscation protection practicesPreface
APK security in Android applications has been criticized, and the market is filled with various cracked or Chinese applications, hackers can easily decompile, crack, and convert an APK using a cracking tool, in this way, the logic of the original code can be modified, new code can be added, resource
The most important part of a antivirus software package is the virus database and the virus engine. The virus database is obtained from the server. the antivirus engine is used to determine whether the package name and signature in the program match the package name and signature in the virus database, if the match is
February 11, 2015, Security dog clothing cloud Android version V2.0 Gorgeous debut, has also been on the shelves of the major mobile phone application market, while the user friends can go to the official website http://fuyun.safedog.cn/client.html Directly download or scan the QR code can be easily installed, this version of the main new host panel, statistical analysis and security protection reporting fu
Eye Protection is a Windows, Android screen Blu-ray filter tool, fool-type operation, support intelligent mode, fatigue reminder, can effectively protect eyesight and reduce the night use of computers, mobile phone to sleep impact.From the Discovery Channel.There are a number of similar applications such as veteran F.lux, Night Filter, Twilight shimmer, and IOS native big yellow screen, among others.The Win
after encryption. (2) to decrypt the APK Decryption is not much of a use for us, just a look. According to the above, I believe you have a certain understanding of the APK's pseudo-encryption technology, but this method for Android 4.2.x version and later the system is not applicable it will refuse the installation of this encryption apk. Next we will explain another Android APK to prevent anti-compilat
APKDecryption is not much of a use for us, just a look.According to the above, I believe you have a certain understanding of the APK's pseudo-encryption technology, but this method for Android 4.2.x version and later the system is not applicable it will refuse the installation of this encryption apk. Next we will explain another Android APK to prevent anti-compilation technology, looking forward to everyon
The world's first new Android Trojan Golem virus infected tens of thousands of mobile phones
When the mobile phone is recharged on the desk, the screen is suddenly highlighted. When no one is touched, a mobile phone game runs, slides, and executes many commands. After the execution, the phone quietly closes the screen display, and nothing happens. The mobile phone owner will find that his cell phone battery
/* *********************************************************************** * Android system power-down protection * Description: * When the Android system suddenly loses power, it may be as if the system data is lost and cannot be turned off. * 2016-6-8 Shenzhen Nanshan Ping Shan Village Zengjianfeng *
Three top papers on Privacy Protection for Android users from 2015.5 to 2015.6, googlehosts2015.51.TurkeyAbant Izzet BaysalUniversityAndGaziUniversityThe researchers raised questions about the existing Android permission management which cannot be dynamically adjusted and users cannot understand the meaning of permissions.A permission-basedAndroidMalware detectio
automated tools, identifying hidden attack vectors and classifying them (which could allow the app to do phishing attacks or click hijacking attacks). To address these threats, 1) at the application market level, researchers have developed a tool that uses static analysis to identify code that could initiate a GUI attack, 2) at the terminal level, by adding indicators to the Navigationbar, Allows the user to be informed of the actual source of the running program and to compare it to a normal s
Jinshan mobile Phone Poison PA released today's Android mobile phone security report, daily monitoring of 15,000 Android devices are infected with the virus. The first is the cottage phone, parallel imports of mobile phones and third-party ROM packets of mobile phones, virus detection rate continues to increase, has be
Meituan Android resource obfuscation protection practices
In the original article, Meituan Android resource obfuscation protection practices, but this article does not provide a specific obfuscation solution, but only adds a function. The function implementation process needs to be implemented by yourself, this article
When learning the operating system, we know that there is an interrupt mechanism when the cup processes transactions to facilitate transaction switching and the process of Interrupt Processing: 1) Wake up the blocked Driver (Program) process; 2) Protect the interrupted CPU environment; 3) Transfer to the response device processing program; 4) interrupt processing; 5) resume the interrupted process.
Similar concepts are also available in Android.
When
Talk about the recently popular android mobile phone virus
"XXX (host name): ht: // ********** XXshenqi.apk" is a recent mobile phone virus outbreak. The host receives such a text message, it starts with the name stored in the sender's mobile phone address book and then allows the recipient to open a webpage link.
Actually, a friend familiar with
In the development process of Android, it is often necessary to save the previous data. This is the time to do the protection scene operation, the operation is mainly to rewrite the onsaveinstancestate and onrestoreinstancestate two functions.Onsaveinstancestate, saving dataThe order of execution of the activity life cycle:Onpause-onsaveinstancestate-onstop-ondestroyOnrestoreinstancestate, recovering dataTh
1 principle
Android has three kinds of screen unlock protection: pattern unlock, pin password unlock and unlock password.
The interface is as follows:
Diagram 1 Pattern Unlock interface
Chart 2 pin password unlock interface
Chart 3 Password Unlock interface
We can use the subclass Keyguardlock in Java.lang.Object.android.app.KeyguardManger to control the disable out
lock Interface
After the disableKeyguard () method is called to lock the screen with the disable pattern, pressing the home key will trigger the screen lock Interface enable to re-display the screen lock interface.
2. Pin password lock interface using this method
After the disableKeyguard () method is called and the disable pattern interface is displayed, a pop-up screen is displayed when you press the home Key. Does not return to the home page
3. Use this method on the password lock Interface
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