Hints for using Proguard on your Android app. Some anti-virus software, such as AVG AntiVirus , [ citation needed ] will also alert their users when they land on a site with code that is manually obfuscated, as one of the purposes of. If you wish to confirm whether ProGuard is preserving certain annotations or classes, you can review the. It further compacts the code as a bonus. I have played around with the excludes on both obsfucators and can not seem to get Proguard to work. If you want to get rid of the warning, just add @SuppressLint("NewApi") to the method or class where you use the API. Four hours and lots of hair pulling later I finally got it working… If at first you don't succeed… At first it seemed like ProGuard was refusing to obfuscate any class with a keep rule. Add the following lines:-keep class com. You should make sure all file names correspond to their class names. ProGuard can be run as a task in the Java-based build tool Ant (version 1. My younger self did not think my older self would ever need to understand his code. # dex does not like code run through proguard optimize and preverify steps. Oct 16, 2014 · The resulting assembly does not contain a reference to the dependency. You need to set the value of minifyEnabled to true. It can detect and remove unused classes, fields, methods, and attributes. apk does not include the obfuscated files. Classes and class members that are listed in the mapping file receive the names specified along with them. does crypto obfuscator support incremental obfuscation? yes. Classes and class members that are not mentioned receive new names. Example Obfuscation with ProGuard results in changes to file names and to code as displayed in these examples. Renaming: this alter the name of class,. You can obfuscate Android code to provide security against reverse engineering. the class has a different name and therefore the wrong intent is created. " -dontusemixedcaseclassnames "Specifies not to generate mixed-case class names while obfuscating. obfuscate_class(tokens, index, replace, replacement, *args) [source] ¶ If the token string (a class) inside tokens[index] matches replace, return replacement. For example, if you specify public methods, Public methods would not obfuscate by ProGuard. biraj joshi. extends = "class_name" The optional fully qualified name of the class the specified classes must extend, with optional wildcards. Libgdx bulletwrapper app crashes when using proguard My libgdx/bullet app crashes with the following exception when I try to run a release apk built with proguard enabled : Process: com. It renames the remaining classes, fields, and methods using short meaningless names. Given that proguard does a good job in optimizing large libraries, I would like to "obfuscate" the whole app including the andengine jars. Proguard rules for common Android libraries. Private and Public members names obfuscation. keep additional classes. ProGuard Settings. It makes your Java and Android applications up to 90% smaller and up to 20% faster. Ensure that you set up Android Studio and the Android SDK properly. Before you can use the proguard task, you have to tell Ant about this new task. Jul 05, 2013 · ProGuard will accept the class definition, but the current implementation will not write out the processed version. Judging by the timestamp, the obfuscation process was quite quick (less than 1 second), which led me to believe that Proguard did not obfuscate any of my program classes. incremental obfuscation ensures that existing classes, methods, etc are given the same obfuscated name every time assemblies are obfuscated. It detects and removes unused classes, fields, methods, and attributes. Apply ProGuard to classes and jar files only, and the create the. KeepName *;} # The following annotations can only be specified with classes. jar (yes, I tweaked the file names and paths a little bit), the resulting App- release. Code obfuscation hides function and class names in your compiled Dart code, making it difficult for an attacker to reverse engineer your proprietary app. Mar 08, 2016 · In this important step, the code is then obfuscated. Name mangling makes your code harder to understand by changing the names of types, methods and fields. > packageInfo. ) Even if obfuscating 'again' may change the names (again), it will not add an entire new "level of obfuscation". In this case everything works fine and I am able to get an obfuscated JAR. Retaining entry points ensures that they can still be accessed by their original names. Code obfuscation hides function and class names in your compiled Dart code, making it difficult for an attacker to reverse engineer your proprietary app. Because of that, we want to add an actual “Obfuscate Email Address” command, but how should it be done?. For example, the name of the class SQLiteOpenHelper and its methods getWritableDatabase and rawQuery are not re-named because this class is part of the core Android API. Creates a new ReTrace object to process stack traces on the standard input, based on the given mapping file name. These methods are inserted by the javac compiler and the jikes compiler respectively, to implement the. 2) ProGuard adapts Signature attribuites in class files, but it doesn't know about ScalaSignature annotations. jar @config. u-pb-and leave it class name filled by you. As to best practices, I can only suggest keeping the obfuscation logs for shipped releases in a safe place so that stack traces in bug reports can be interpreted. If you are using our Gradle plugin, this will automatically be added to your ProGuard config. beyondweird. By default, obfuscated class names can contain a mix of upper-case characters and lower-case characters. hi i have used proguard to obfuscate my java class. For such cases, you may easy convert them to aar or jar libraries and use it. Unfortunately, yGuard operates on. RxJava and ProGuard can be primarily classified as "Java" tools. app, PID: 14042. It will be prepended by the “cr_” prefix to make obvious which logs are coming from Chrome. Feb 20, 2018 · ProGuard can rename package names when obfuscating, so after compilation it might happen that the class and its resource file are no longer in the same package in the final APK. Google Play Services version 17+ If you reference Google Play Services version 17 or higher, you MUST complete Google's update instructions here. JavaScript Obfuscator Desktop provides all the features you need to scramble and protect JavaScript code. Obfuscating ShiVa Games with Proguard January 16, 2014 Android , Reverse Engineering , ShiVa 0 If you are worried about people hacking your ShiVa based game then obfuscation is a good place to start. Obfuscate Your JavaFX Application The following text describes the process of obfuscating a JavaFX application with proguard. The actual entry in the config file depends on which version of the Aeris Android SDK we’re using. Log are stripped out of production binaries using Proguard. It optimizes bytecode and removes unused instructions. It's not ProGuard, though. JdkAlpnSslEngine$1 (Throwable with empty stack trace)Dumping all threads without appropriate locks held: thread list lock. select the 'cryptographic renaming' scheme for this. obfuscate_class(tokens, index, replace, replacement, *args) [source] ¶ If the token string (a class) inside tokens[index] matches replace, return replacement. Adding it on a method or field will keep the method/field (and its name) as well as the class name intact. Please file a bug if you experience any issues. properties files with class name references. The result is a smaller sized. Everybody at some point thinks they need to obfuscate their code, but in almost all cases, it's simply not true. Using Proguard with a library that uses Spring @Autowired by name stackoverflow. Android because the app is compiled down to Intermediate Language (IL). myapplication. Learning proguard by obfuscating and converting external library project to aar Sometimes there are some parts of your application which will never change or change not often. ** { *; } -dontwarn com. war file with the results. ProGuard | Official website. # dex does not like code run through proguard optimize and preverify steps. annotation. jar @config. 4, the latest version of its integrated development environment (IDE), with “a small but focused set of new features that address core developer workflows. When obfuscating, ProGuard writes out class files named "a. More commonly, information from colleges was incomplete or misleading. xml, and I also have. The actual entry in the config file depends on which version of the Aeris Android SDK we're using. Closed progurad/obfuscating not work right #561. classFilesAccept(new ClassFileObfuscator(programClassPool, configuration. To add proguard to your application follow these steps. pyminifier. WAR file obfuscation using ProGuard is the process of changing class and method names, so you might want to take special care not to change something you might. incremental obfuscation ensures that existing classes, methods, etc are given the same obfuscated name every time assemblies are obfuscated. ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier. jar file before and after obfuscation:. Obfuscating means that it renames and jumbles up the names of packages, classes and. With current proguard rules the classes containing @State annotation are obfuscated and change their names. any classes that are not called. The next step was to the create a Win32 executable application. The fully qualified name of a class that should be neither obfuscated nor removed (if ProGuard is used and the class is not necessary). Many types of obfuscation can be done while the func-tionality of the system remains same. Obfuscating JavaScript files manually one by one can be an irksome and time consuming process. GitHub Gist: instantly share code, notes, and snippets. At this step, ProGuard will notify if any of the changes it brought upon has caused any errors. If the structure of the code changes fundamentally, ProGuard may print out warnings. RxJava and ProGuard can be primarily classified as "Java" tools. Using Proguard with a library that uses Spring @Autowired by name stackoverflow. How do I ensure this interface's method names are not obfuscated while still obfuscating the rest of the class? ProGuard uses the naming convention of Java bytecode, as seen in class file names and stacktraces. Note that this annotation is available only when using the AndroidX Annotations Library and when you include the ProGuard rules file that is packaged with the Android Gradle plugin, as described in the section about how to enable shrinking. If method name. Person exists in both the src2 directory and (not shown here) in the src directory ("duplicate class: dustin. I had to write an extractor that found important entry point classes in layers and META-INF/* and prevented the obfuscator from obfuscating them. Creating Android applications with Clojure: Slimming things down with ProGuard Last time, I described how to integrate Clojure into the standard Android build process. The resulting jars are smaller and harder to reverse-engineer. -keepnames is required to not obfuscate the names in a class as Xposed loads only those classes which implement IXposedMod or it's sub-interface. 00 Now: \ Rizoma bar ends are equipped with a vast range of adapters to ensure trouble free fitting to original and. Inconveniently, Windows refuses to create files with this reserved name (among a few other names). In this post, I will build on this by integrating ProGuard into the build process in an effort to make applications smaller and faster. The following figure shows the StarterApplication APK. If there are HTML or JS files on your workspace, the extension automatically starts and looks for CSS class definitions. Test] Reading library jar [C:\Program Files\Java\jdk1. Conclusion. These first steps make the preverification step adds preverification. However, this step is not supported by Xamarin. So I am giving up on Proguard and using Zelix. Sometimes however, program classes reside in the same packages as library classes, and they do refer to their package visible class members. Jul 27, 2014. I have played around with the excludes on both obsfucators and can not seem to get Proguard to work. Dec 27, 2016 · If you want to hide some key or url that has “hardcode” in the code, ProGuard will not hide it when obfuscating the code since it only changes names of attributes and classes, but not values. If you are using proguard-android-optimize. txtを再利用します。 また、アプリ独自の設定を書いていくように proguard-rules. All other class names: can be obfuscated. ProGuard produces slightly more compact results compared to the traditional external preverifier. has improved (but still fallible) handling of bytecode containing calls to the method Class. Ranch Hand Can't find common super class of [a/a/a/a/a/a] (with 2 known super classe Rather than use proguard why not just. If a package contains a large number of classes, ProGuard may also write out " aux. Oct 21, 2019 · Not a problem, I thought: it’s just a few lines of ProGuard config and we’re away. For Android applications, developers have the option to obfuscate their function names using the ProGuard tool in order to reduce app size and to prevent others from reverse engineering the app source. pro file to make sure any methods you access with. After ProGuard shrinks code, reading a code is difficult because the class names are obfuscated. You can use the mapping file to find the culprit of the crash. Fortunately to help developers Proguard provide you mapping file. It's Good question you have asked as reverse engineering possible in Android. 2) ProGuard adapts Signature attribuites in class files, but it doesn't know about ScalaSignature annotations. We use cookies for various purposes including analytics. This creates perfectly acceptable and usable jars. Unfortunately, yGuard operates on. You can use the Android ProGuard tool to obfuscate, shrink, and optimize your code. i tried to add proguardlevel ‘all’ but that didn’t fix it. It further compacts the code as a bonus. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. At the time of designing testable interfaces, if you run tests on a device by making use of a build that is ProGuard processed, there are chances that it will lead to "method not found" exceptions. For stronger protection and extra capabilities such as String Encryption, Incremental Obfuscation, Stack Trace Transplantation, you may need to choose a commercial product. As the above screen snapshot indicates, the class dustin. Use class with semantics in mind. Estou tentando usar o proguard no netbeans para ofuscar o código mas aparece essa mensagem "Note: there were 255 duplicate class definitions". retrace 追踪 proguard. Many types of obfuscation can be done while the func-tionality of the system remains same. Aug 25, 2019 · android { signingConfigs { config { keyAlias 'testKey' keyPassword 'testing' storeFile file('/home/vogella/temp/test. It even handled the plugin. Classes and class members that are listed in the mapping file receive the names specified along with them. It renames the remaining classes, fields, and methods using short meaningless names. It can then rename the remaining classes, fields, and methods using short meaningless names. Another thing that ProGuard can do, which makes a big impact on code size, is change all identifiers (package, class and class members) to use short names, such as a. The next thing ProGuard needs to do is obfuscate as much code as possible — that is, it's going to rename classes and members to meaningless names like "a", "b", etc. Conclusion. 6, not in 1. 1 - get more details on this page; In versions 2. The mapping may refer to input classes as well as library classes. Please make sure your input classes are packaged correctly. Oct 28, 2014 · The final application consists of many modules. Test] Reading library jar [C:\Program Files\Java\jdk1. Both the ejb container and struts is going to call method and class names specified in the ejb-jar. android documentation: Enable ProGuard for your build. Is there a way to configure Antenna or ProGuard/Ant to obfuscate package names? I am able to obfuscate class names but not package name with my current configuration. Because of that, we want to add an actual “Obfuscate Email Address” command, but how should it be done?. py from 1358 bytes to 640 bytes. The easiest way is to add the following line to your build. In this article, let us explore how a java class file is reverse engineered and how to protect your source code from being reverse engineered by. DexGuard , its specialized commercial extension for Android, focuses further on the protection of apps, additionally optimizing, obfuscating and encrypting strings, classes, resources, resource files, asset files, and native libraries. 2 Solutions collect form web for “Android obfuscate aplicación utilizando proguard mantiene obfuscating frascos de la biblioteca – o es?”. ProGuard is a free Java class file shrinker and obfuscator. Here, we are going to use 'ProGuard' which is a good Obfuscation tool. d Calls made using org. Specifies a field. If these methods get obfuscated and renamed, the Amazon Client will not be able to send information to your application. ProGuard outputs the following files after it runs: dump. Since that class definition does not exist in your project, ProGuard cannot change it. does crypto obfuscator support incremental obfuscation? yes. Sep 29, 2016 · ProGuard is a tool used to obfuscate and trim unused classes and methods. Is the rules above what prevents the class names from being obfuscated? Update: i have since removed the rules above and a Utility class that does not extend anything from Android is not being obfuscated. 1 includes just a few of the most popular products, both free and commercial. Aug 22, 2017 · Check "User Proguard File" under Publishing Settings for Android build. Are we home yet?. 2 Solutions collect form web for "Android obfuscate aplicación utilizando proguard mantiene obfuscating frascos de la biblioteca - o es?". Jack compiler — Compiling Android code with the Jack toolchain The Jack Toolchain is an alternative way of compilingAndroid, which compiles Java source directly into Android dex byte code, skipping a few intermediate steps. In the Obfuscation tab, check the "Repackage classes" box and give the fully qualified path to the package (not a class) that your main class is in. } // Come up with new names for all class files. programClassPool. A typical library. During this step, all the classes, classes' methods, variable names and other class members are renamed with random characters. Permissions. Proguard is recommended for shrinking, optimizing, and obfuscating your code by removing unused code and renaming classes, fields, and methods with semantically obscured names. ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier. class) to two different fragments in different packages while obfuscating. Dec 27, 2016 · If you want to hide some key or url that has “hardcode” in the code, ProGuard will not hide it when obfuscating the code since it only changes names of attributes and classes, but not values. Notably, class files that are in the WEB-INF/classes directory in a war should be packaged in a jar and put in the WEB-INF/lib directory. To resolve this kind of issue, we have to skip some of the classes from getting obfuscated. Running Head: MANAGERIAL COMMUNICATION Managerial Communication [Author’s Name] [Institution’s. Please make sure your input classes are packaged correctly. Using Gson in program that's being obfuscated by ProGuard that ProGuard was obfuscating the field names of the classes passed to Gson(). When I try to edit the files - like some answers have said, the file is encoded and impossible to find duplicates in notepad ++. From a protection point of view, the resulting binary files are much harder, but not impossible, to reverse-engineer. When I did a test with both Proguard and Zelix on a simple one class project, Zelix looks like it did actually obsfucate (class names are renamed to aa,ab, etc), however not the case with Proguard. Good to verify that you have obfuscated your important files. 5, of ProGuard has been released on SourceForge. In this important step, the code is then obfuscated. ProGuard. To keep methods out of Obfuscation, add method in added class with valid access modifiers. keystore') storePassword 'testing1. How can I make Proguard obfuscate only stuff within the method but not change class names and method names?. With a simple test class:. The class consisted of 24 vessels, which came in "short-hull" and "long-hull" versions. This might also solve the problem - add it to Additional obfuscation settings. flattenpackagehierarchy = "package_name" (default = none) Repackage all packages that are renamed into the single given parent package. If method name. JavaScript Obfuscator Desktop provides all the features you need to scramble and protect JavaScript code. ] Step 2: java program [ your program starts running ] You can delete program. excluding a class name will exclude just the name of the class from being obfuscated and not any contents of the class such as methods. The name xxx is obscured, but not its type. static String: externalType(String internalType) Converts an internal type into an external type. It makes your Java and Android applications up to 90% smaller and up to 20% faster. I'm using Proguard to obfuscate a library that has several @Autowired fields. This results in obfuscated. This might also solve the problem - add it to Additional obfuscation settings. Unfortunately, yGuard operates on. Sep 16, 2015 · You can specify a @file:JvmName("CustomName") annotation on a source file to change the name of the class; Many files can share the same JVM name if they are additionally marked with @file:JvmMultifileClass annotation. Mar 21, 2013 · Obfuscating serializable code with SmartAssembly, for the most part, will not break serialization of classes. The final application consists of many modules. This creates perfectly acceptable and usable jars. 8 or higher). Normally, it is not necessary to use this element, instead the class element is used to keep class names (and thus their package names) from being obfuscated. Specifies not to generate mixed-case class names while obfuscating. If you are planning to enable code obfuscation for Gson, make sure to avoid obfuscating the field names:-keepclassmembers class com. jar Does using proguard makes the android app running slower? Getting too many Proguard warnings Android simplexml. Sometimes however, program classes reside in the same packages as library classes, and they do refer to their package visible class members. You can use the mapping file to find the culprit of the crash. NoClassDefFoundError: io. Nov 23, 2019 · Robust is a hot update solution developed by the delegation. com ProGuard is the most popular optimizer for Java bytecode. Pending exception java. You can make edits to the procfg. Java 7 / Java 8 Compatibility Beginning with version 2. 注意的是,在上面這段文字中,有三個屬性要自行修改。第一個是JDK根目錄,第二個是proguard根目錄,proguard可直接到官方網站下載,第三個是proguard config檔案,可以使用筆者提供的proguard cfg檔案。設定完成後,在Netbeans建置專案,就會自動產出單個混淆過後的Jar. apk file that is more difficult to reverse engineer. Aug 05, 2016 · I want to publish an obfuscated jar (using Proguard) and I don’t want the un-obfuscated jar to “escape” so I don’t want it published. It renames the remaining classes, fields, and methods using short meaningless names. Again, you have to enable minifyEnabled in order to turn on code shrinking, and then shrinkResources to turn on resource shrinking. ProGuard is a free Java class file shrinker and obfuscator. For such cases, you may easy convert them to aar or jar libraries and use it. static String: externalType(String internalType) Converts an internal type into an external type. People occasionally ask how to modify the “Convert Selection to Entities” command to also convert ASCII so that they can use it as a simple email address obfuscation technique. Thus obfuscating Spring Boot applications is different than obfuscating regular java applications and requires a suitable strategy. reduce jar file size. [proguard] Ignoring unused library classes [proguard] Original number of library classes: 2398 [proguard] Final number of library classes: 92 [proguard] Printing kept classes, fields, and methods. These fields can still be renamed during obfuscation as the SerializedName annotation (not the source field name) controls the name in the JSON serialization. There are various tools available which can protect your java '. Aug 22, 2017 · Check "User Proguard File" under Publishing Settings for Android build. ProGuard is a Java class file shrinker and obfuscator, that can detect and remove unused classes, fields, methods, and attributes. This means that you will not be able to define your own classes using these names. May 14, 2016 · Below is our current method count with Kotlin’s share on the right — 388 methods. This is the default * behavior. With a simple test class:. Build your application in release mode. Since ProGuard works with Java bytecode, we want to run ProGuard on the class files that are created by the Java compiler, before the build process converts the Java bytecode into Dalvik bytecode. xml, struts-config. Bugsnag will use the Class name as an approximate file name in this case as the original file name is not available. has improved (but still fallible) handling of bytecode containing calls to the method Class. -dontwarn[class_filter] Specifies not to warn about unresolved references and other important problems at all. Specifies not to generate mixed-case class names while obfuscating. Example Obfuscation with ProGuard results in changes to file names and to code as displayed in these examples. ProGuard will automatically detect them and deal with them, even when their names have been obfuscated. war file with the results. It removes unused codes from your libraries as well. jar @config. As to best practices, I can only suggest keeping the obfuscation logs for shipped releases in a safe place so that stack traces in bug reports can be interpreted. name_proguard. It's not ProGuard, though. Jul 27, 2014 · Obfuscating Android Applications using O-LLVM and the NDK. it creates another myobfuscate file instead of renaming of the all folder and classes. Storing encrypted string constants in program code is fairly futile, since the encryption has to be perfectly reversible by definition. ProGuard detects and removes unused classes, and attributes, methods and fields. d Calls made using org. In the obfuscation step, ProGuard renames classes and class members that are not entry points. xml : a Maven POM for. The package names and class names have been changed in the obfuscated JAR. Once ProGuard is installed, you can use it by choosing Project > Package > Create Obfuscated Package. java -jar path_to_proguard. Given that proguard does a good job in optimizing large libraries, I would like to "obfuscate" the whole app including the andengine jars. More than 1 year has passed since last update. Obfuscating and Optimizing android app : "Proguard can do it all" as well as the class name intact. Make sure you save file as UTF-8 and NOT UTF-8 BOM. To exclude libraries from ProGuard, check the ancestor package names of the classes, then do it like this:. From a protection point of view, the resulting binary files are much harder, but not impossible, to reverse-engineer. Sample Application. but then put an -out after the original name. These restrictions may or may not be common among various database systems, so scripts should check all new field names to ensure that a tool does not fail during execution. --dontoptimize +# -dontoptimize-dontpreverify # Don't obfuscate. Please file a bug if you experience any issues. Because of that, we want to add an actual “Obfuscate Email Address” command, but how should it be done?. ProGuard produces slightly more compact results compared to the traditional external preverifier. If you are planning to enable code obfuscation for Gson, make sure to avoid obfuscating the field names:-keepclassmembers class com. ProGuard is a free Java class file shrinker and obfuscator. MultiDex is technology that enables multiple DEX files within your APK, thus removing the 64K method limit for your game. ProGuard是一个非常酷的混淆器和收缩器(shrinker, 大家有更好听的翻译方法一定告诉我)。它的特点是除了可以混淆保护你的代码,还可以自动检测和删除没有用到的类、方法和数据成员,还可以去掉包的层次关系,最大限度的缩小你的jar包。. It renames the remaining classes, fields, and methods using short meaningless names. Child Elements. models** { ; } Troubleshooting. xml, struts-config. Using ProGuard with Ant to obfuscate Java class files There are a number of ways to configure ProGuard, but I choose to create an Ant task to obfuscate my Java class files, as my application is built using Ant, and adding another Ant task made it easy to keep building my application this way. Classes and class members that are listed in the mapping file receive the names specified along with them. io IO流,处理类似jar和zip,classpath文件流 proguard. android documentation: ProGuard - Obfuscating and Shrinking your code. Your obfuscation program must also preserve annotations. > packageInfo. Jun 21, 2017 · Once the config file is created, the team ran ProGuard from the command line, using the command: java -jar proguard. Obfuscate Your JavaFX Application The following text describes the process of obfuscating a JavaFX application with proguard. Let's assume the class name mycompany. In this important step, the code is then obfuscated. In most cases, the class name is not needed. name_proguard. After ProGuard shrinks code, reading a code is difficult because the class names are obfuscated. Manual for the 'bobs' BitBoost Python Obfuscator for Obfuscating Python Source Code: Version 3.