问题描述

在加密dex的时候报错java.util.zip.ZipException:error in opening zip file

问题展示

代码

最终发现是在调用EncryptorConfig.java（80）报的错误

              File apk=new File(MyApp.getContext().getFilesDir()+File.separator+"sub.apk");

              ZipFile zipFile=new ZipFile(apk); //把apk当作zip打开出现上述异常

但是这个sub.apk在是在位置ShellSubTask.java（80）创建的

		File apk=new File(MyApp.getContext().getFilesDir()+File.separator+"sub.apk");
		FileUtils.mkdir(apk.getParent());
		BYProtectUtils.copyAssetsFile("sub.apk",apk.getAbsolutePath());

应该是拷贝了资源文件（MD5:89122AB303A8DA6FC5694C6BAD48229E ）到sub.apk当中？才导致后面当作zip解析不正确？

问题描述

在上个Issues后，重新编译了项目，但是因为assets中找不到sub.apk故会报错。我个人理解是不是这个sub.apk就是我要加密的apk，之后我把要加密的apk放到了assets中，之后顺利运行加壳程序，但是结果如下无法运行了。

代码

在ShellSubTask.java-》start函数执行整体的加壳流程，个人理解如下：

step1:拷贝sub.apk（我认为的要加密的apk）到指定路径，用于后续的dex操作

step2:在AndroidManifest.xml文件中Application标签中加入name属性，还有一个实在manifest标签中加入compileSdkVersionCodename属性

step3:dex的亦或加密操作（key应该是包名）

step4:构造json对象存储配置属性并进行加密（key应该是包名的md5）

step5:签名apk

public void start() {

		try {
			stepLoading.setStepStatus(1, StepLoading.Running);

            File apk=new File(MyApp.getContext().getFilesDir()+File.separator+"sub.apk");
            FileUtils.mkdir(apk.getParent());
            BYProtectUtils.copyAssetsFile("sub.apk",apk.getAbsolutePath());

            stepLoading.setStepStatus(1, StepLoading.Success);
		} catch (Exception e) {
			activity.showDialog(e.toString());
			stepLoading.setStepStatus(1, StepLoading.Failure);
			return;
		}


		try {
			stepLoading.setStepStatus(2, StepLoading.Running);

			byte[] manifest = parseManifest(getZipInputStream("AndroidManifest.xml"), new EncryptorConfig.Conf().getSubApplicationName());
			zipOut.addFile("AndroidManifest.xml", manifest);


			stepLoading.setStepStatus(2, StepLoading.Success);
		} catch (Exception e) {
			activity.showDialog(e.toString());
			stepLoading.setStepStatus(2, StepLoading.Failure);
			return;
		}



		try {
			stepLoading.setStepStatus(3, StepLoading.Running);

			byte[] dex = EncryptorConfig.getDex();
			zipOut.addFile("classes.dex", dex);


			if(singleDEX){
				String dexName="classes.dex";
				zipOut.addFile("src/" + BYProtectUtils.getAssetsName(dexName), xorEncode(FileUtils.toByteArray(getZipInputStream(dexName)),packageName));
				zipOut.removeFile(dexName);
				enDexList.add(BYProtectUtils.getAssetsName(dexName));
			}else {
				for (String dexName : dexEntries) {
					zipOut.addFile("src/" + BYProtectUtils.getAssetsName(dexName), xorEncode(FileUtils.toByteArray(getZipInputStream(dexName)),packageName));
					zipOut.removeFile(dexName);
					enDexList.add(BYProtectUtils.getAssetsName(dexName));
				}
			}

			stepLoading.setStepStatus(3, StepLoading.Success);
		} catch (Exception e) {
			activity.showDialog(e.toString());
			stepLoading.setStepStatus(3, StepLoading.Failure);
			return;
		}




		try {
			stepLoading.setStepStatus(4, StepLoading.Running);

			JSONObject jsonObject=new JSONObject();
			jsonObject.put("application",customApplicationName);
			jsonObject.put("sub",new EncryptorConfig.Conf().getSubApplicationName());
			jsonObject.put("dex", ListUtil.ListToString(enDexList));

			jsonObject.put("checkVirtual",fragment.cb_checkVirtual.isChecked());
			jsonObject.put("checkXposed",fragment.cb_checkXposed.isChecked());
			jsonObject.put("checkRoot",fragment.cb_checkRoot.isChecked());
			jsonObject.put("checkVPN",fragment.cb_checkVPN.isChecked());


			byte[] conf=ByteEncoder.Encrypt(jsonObject.toString().getBytes(),packageName);

			zipOut.addFile(confEntry, conf);

			zipOut.save();

			stepLoading.setStepStatus(4, StepLoading.Success);
		} catch (Exception e) {
			activity.showDialog(e.toString());
			stepLoading.setStepStatus(4, StepLoading.Failure);
			return;
		}



		try {
			stepLoading.setStepStatus(5, StepLoading.Running);

			File tmpFile = new File(outputPath + ".tmp");
			new File(outputPath).renameTo(tmpFile);

			if (useKey) {

				KeyStore keyStore = KeyStore.getInstance("JKS");
				keyStore.load(new FileInputStream(conf.getKeyStorePath()), conf.getKeyStorePw().toCharArray());

				String alias =conf.getCertAlias();

				PrivateKey privateKey = (PrivateKey) keyStore.getKey(alias, conf.getCertPw().toCharArray());
				X509Certificate x509Certificate = (X509Certificate) keyStore.getCertificate(alias);
				ApkSigner.Builder builder = new ApkSigner.Builder(ImmutableList.of(new ApkSigner.SignerConfig.Builder("Fly", privateKey, ImmutableList.of(x509Certificate)).build()));
				builder.setInputApk(tmpFile);
				builder.setOutputApk(new File(outputPath));
				builder.setCreatedBy("Fly");
				builder.setMinSdkVersion(9);
				builder.setV1SigningEnabled(true);
				builder.setV2SigningEnabled(false);
				builder.build().sign();


			} else {


				KeyStore keyStore = KeyStore.getInstance("JKS");
				keyStore.load(BYProtectUtils.getStreamFromAssets("fly.jks"), "123456".toCharArray());

				String alias ="test";

				PrivateKey privateKey = (PrivateKey) keyStore.getKey(alias, "123456".toCharArray());
				X509Certificate x509Certificate = (X509Certificate) keyStore.getCertificate(alias);
				ApkSigner.Builder builder = new ApkSigner.Builder(ImmutableList.of(new ApkSigner.SignerConfig.Builder("Fly", privateKey, ImmutableList.of(x509Certificate)).build()));
				builder.setInputApk(tmpFile);
				builder.setOutputApk(new File(outputPath));
				builder.setCreatedBy("Fly");
				builder.setMinSdkVersion(9);
				builder.setV1SigningEnabled(true);
				builder.setV2SigningEnabled(false);
				builder.build().sign();


			}

			tmpFile.delete();


			stepLoading.setStepStatus(6, StepLoading.Success);

			showFinish(context, new File(outputPath));


			stepLoading.setStepStatus(5, StepLoading.Success);
		} catch (Exception e) {
			activity.showDialog(e.toString());
			stepLoading.setStepStatus(5, StepLoading.Failure);
			return;
		}

请教

问题一：在函数parseManifest中好像有意设置了一下compileSdkVersionCodename这个属性，想问下具体是有什么目的吗

问题二：assets中的sub.apk是否是我理解的是要进行加密的apk

问题三：上述流程中没有涉及到壳代码以及混淆代码（特殊字符）的添加，好像只有对要加密的apk文件操作，我觉得我应该是漏掉了什么。

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.fly.apkencryptor, PID: 20650 java.lang.UnsatisfiedLinkError: dlopen failed: library "/data/data/com.fly.apkencryptor/lib/libmylib.so" not found at java.lang.Runtime.load0(Runtime.java:909) at java.lang.System.load(System.java:1537) at com.fly.apkencryptor.application.MyApp.attachBaseContext(MyApp.java:81)