StringFog

本项目基于开源项目 StringFog 进行openharmony 的移植和开发，可以通过项目标签以及github地址（ https://github.com/MegatronKing/StringFog ）追踪到原安卓项目版本**

项目介绍

• 项目名称：StringFog
• 所属系列：openharmony 第三方组件适配移植
• 功能：一款自动对dex/aar/jar文件中的字符串进行加密的插件工具
• 基线版本：StringFog release v1.1.0
• 项目移植状态：主功能完成
• 调用差异：无
• 开发版本：sdk5，DevEco Studio2.1 beta3
• 项目作者和维护人：邢碌
• 联系方式：xxx@chinasoftinc.com

效果演示

• 加密前：

  String a = "This is a string!";​

• 加密后：

  String a = StringFog.decrypt("ABCDEFGHIJKLMN");​

• 运行时：

  decrypt: "ABCDEFGHIJKLMN" => "This is a string!"​

安装教程

在moudle级别下的build.gradle文件中添加依赖

// 添加maven仓库
repositories {
   maven {
       url 'https://s01.oss.sonatype.org/content/repositories/snapshots/'
   }
}

// 添加依赖库
dependencies {
   implementation 'com.gitee.chinasoft_ohos:stringfog:0.0.1-SNAPSHOT'   
}

在sdk5，DevEco Studio2.1 beta3下项目可直接运行 如无法运行，删除项目.gradle,.idea,build,gradle,build.gradle文件， 并依据自己的版本创建新项目，将新项目的对应文件复制到根目录下

使用

由于开发了gradle插件，所以在集成时非常简单，不会影响到打包的配置。插件已经上传到jcenter，直接引用依赖就可以。

1、在根目录build.gradle中引入插件依赖。

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        ...
        classpath 'com.github.megatronking.stringfog:gradle-plugin:2.2.1'
        // 选用加解密算法库，默认实现了xor和aes-cbc两种简单算法，也可以使用自己的加解密库。
        classpath 'com.github.megatronking.stringfog_ext_xor:xor:1.1.0'
    }
}

2、在moudle或lib的build.gradle中配置插件。

apply plugin: 'stringfog'

stringfog {
    // 这是加解密key，可以自由定义。
    key 'Hello World'
    // 开关
    enable true
    // 加解密库的实现类路径，需和上面配置的加解密算法库一致。
    implementation 'com.github.megatronking.stringfog_ext_xor.StringFogImpl'
    // 指定需加密的代码包路径，可配置多个，未指定将默认全部加密。
    fogPackages = ['com.xxx.xxx']
}

3、在moudle或lib的build.gradle中引入加解密库依赖。

dependencies {
      ...
      // 这里要和上面选用的加解密算法库一致，用于运行时解密。
      compile 'com.github.megatronking.stringfog:xor:1.1.0'
}

扩展

注解反加密

如果开发者有不需要自动加密的类，可以使用注解StringFogIgnore来忽略：

@StringFogIgnore
public class Test {
    ...
}

自定义加解密算法实现

实现IStringFog接口，参考stringfog-ext目录下面的两种算法实现。注意某些算法在不同平台上会有差异，可能出现在运行时无法正确解密的问题。如何集成请参考下方范例！

public final class StringFogImpl implements IStringFog {

    @Override
    public String encrypt(String data, String key) {
        // 自定义加密
    }

    @Override
    public String decrypt(String data, String key) {
        // 自定义解密
    }

    @Override
    public boolean overflow(String data, String key) {
        // 最大字符串长度为65536，这里要校验加密后是否出现长度溢出，如果溢出将不进行加密。
        // 这里可以控制符合某些条件的字符串不加密。
    }

}

Mapping文件

加解密的字符串明文和暗文会自动生成mapping映射文件，位于outputs/mapping/stringfog.txt。

测试信息

还没有测试

版本迭代

• v0.0.1_alpha

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Copyright 2016, Megatron King

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