plugin.xml

<?xml version="1.0" encoding="UTF-8" ?>
<plugin xmlns="http://phonegap.com/ns/plugins/1.0"
    xmlns:android="http://schemas.android.com/apk/res/android"
    id="cordova-plugin-x-crc32"
    version="0.1.1">
  <engines>
    <engine name="cordova" version=">=3.3.0" />
  </engines>
  <dependency id="cordova-plugin-file" version=">=2.0.0" />

  <name>cordova-plugin-x-crc32</name>
  <description>Provide checksum for files</description>

  <js-module src="crc32.js" name="Crc32">
    <clobbers target="crc32" />
  </js-module>

  <platform name="android">
    <source-file src="src/android/Crc32.java" target-dir="src/org/apache/cordova" />

    <config-file target="res/xml/config.xml" parent="/widget">
      <feature name="Crc32">
        <param name="android-package" value="org.apache.cordova.Crc32"/>
      </feature>
    </config-file>

    <config-file target="AndroidManifest.xml" parent="/*">
      <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    </config-file>
  </platform>

  <platform name="ios">
    <source-file src="src/ios/crc32.swift" />
    <source-file src="src/ios/Crc32Plugin.swift" />

    <config-file target="config.xml" parent="/*">
      <feature name="Crc32">
        <param name="ios-package" value="Crc32Plugin"/>
      </feature>
    </config-file>
  </platform>
</plugin>