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(1887)","Python","\u003ca id=\"2110ded2aa5637fa933cc674bc33bf21\"\u003e\u003c/a\u003e工具"],"sub_categories":["\u003ca id=\"63fd2c592145914e99f837cecdc5a67c\"\u003e\u003c/a\u003e新添加的1"],"readme":"# dcc\nDCC (Dex-to-C Compiler) is method-based aot compiler that can translate DEX code to C code.\n\n## 安装\n### Linux\n以下是ubuntu 18.04 环境下的安装配置步骤,如果某些环节已经配置过,如JDK,可跳过.\n+ 下载代码\n```\ngit clone https://github.com/amimo/dcc.git\n```\n+ 安装项目依赖\n```\ncd dcc\npip3 install -r requirements.txt\nwget -O tools/apktool.jar https://bitbucket.org/iBotPeaches/apktool/downloads/apktool_2.4.0.jar\n```\n+ 安装配置安卓开发环境(NDK r17+, SDK)\n```\nexport PATH=path/to/ndk:$PATH\n```\n+ 安装JDK\n```\nsudo apt-get install openjdk-8-jdk\n```\n### Windows\n+ 安装python3\n+ 安装项目依赖. 下载apktool,将其重命名为apktool.jar后放到dcc/tools目录中.\n```\ncd dcc\npip3 install -r requirements.txt\n```\n+ 安装NDK(r17+),将dcc.cfg中ndk_dir修改为NDK安装目录\n+ 安装JRE或JDK,将java加入path.\n\n## 使用dcc加固app\n### 1. 加载Native库\n首先在app代码合适的位置,如Application的静态代码块或onCreate等,添加加载so库代码,并重新生成apk\n```\ntry {\n    System.loadLibrary(\"nc\");\n} catch (UnsatisfiedLinkError e) {\n    e.printStackTrace();\n}\n```\n### 2. 指定需要编译的方法\n#### 使用黑白名单\ndcc支持使用黑白名单来过滤需要编译或禁止编译的函数.\n修改filter.txt,使用正则表达式配置需要处理的函数.默认编译Activity.onCreate,和测试demo中的所有函数.\n```\nvi filter.txt\n```\n#### 使用注解\n在任意包中新增Dex2C注解类\n```\nimport java.lang.annotation.Retention;\nimport java.lang.annotation.RetentionPolicy;\n\n@Retention(RetentionPolicy.RUNTIME)\npublic @interface Dex2C {}\n```\n\n然后使用Dex2C标记需要编译的类或者方法\n\n### 3. 加固APP\n使用如下命令加固your_app.apk\n```\npython3 dcc.py your_app.apk -o out.apk\n```\n\n该命令会生成两个文件out.apk和project-source.zip.其中out.apk已经使用testkey签名的加固app,可以直接安装;\nproject-source.zip是个jni工程,里面包含我们编译出来的c代码,解压出来后可以直接使用ndk编译.\n\n\n## 测试demo\n+ 修改测试demo项目local.properties,配置正确的ndk.dir,sdk.dir路径\n```\nvi tests/demo-java/local.properties\nvi tests/demo-c/local.properties\n```\n+ 编译demo-java\n```\ncd tests/demo-java\n./gradlew assembleDebug\n```\n+ 将dex编译到c,生成的c代码输出到demo-c的src/main目录下\n```\ncd dcc\npython3 dcc.py tests/demo-java/app/build/outputs/apk/debug/app-debug.apk --source-dir=tests/demo-c/app/src/main/ --no-build\n```\n+ 编译c demo\n```\ncd tests/demo-c\n./gradlew assembleDebug\n```\n如果一切顺利,\"tests/demo-c/app/build/outputs/apk/debug/app-debug.apk\"就是最终生成的apk,安装到手机并运行,看是否会崩溃.\n\n## 注意\n+ 这是我个人研究项目,当前还未经过大量测试,请谨慎用于线上项目!\n+ 编译出来的C代码使用JNI跟Java虚拟机交互,有可能会对性能产生非常严重的影响,请谨慎选择加固函数!\n\n## 参考资源\n+ [DAD](https://github.com/androguard/androguard/tree/master/androguard/decompiler/dad)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Famimo%2Fdcc","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Famimo%2Fdcc","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Famimo%2Fdcc/lists"}