如何使用密码（AES）为iOS和Android压缩文件？

问题描述

是否有能够使用AES加密来压缩文件的库？

Is there a library which is capable of zipping file with password using AES encryption?

为iOS找到这个：

推荐答案

更新：

更新参数和zipfile创建方法中的密码设置。

updated password setting in parameters and zipfile creation method.

您可以使用Zip4j库

You can use Zip4j library http://www.lingala.net/zip4j/download.php

如果您想要AES加密，您也可以使用以下代码

if you want AES Encryption also you can do with following code

// Initiate ZipFile object with the path/name of the zip file.
            ZipFile zipFile = new ZipFile("c:\\ZipTest\\AddFilesWithAESZipEncryption.zip");

// Build the list of files to be added in the array list
            // Objects of type File have to be added to the ArrayList
            ArrayList filesToAdd = new ArrayList();
            filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
            filesToAdd.add(new File("c:\\ZipTest\\myvideo.avi"));
            filesToAdd.add(new File("c:\\ZipTest\\mysong.mp3"));

            // Initiate Zip Parameters which define various properties
            ZipParameters parameters = new ZipParameters();
            parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE); // set compression method to deflate compression

 //DEFLATE_LEVEL_FASTEST     - Lowest compression level but higher speed of compression
            //DEFLATE_LEVEL_FAST        - Low compression level but higher speed of compression
            //DEFLATE_LEVEL_NORMAL  - Optimal balance between compression level/speed
            //DEFLATE_LEVEL_MAXIMUM     - High compression level with a compromise of speed
            //DEFLATE_LEVEL_ULTRA       - Highest compression level but low speed
            parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);

            //Set the encryption flag to true
            parameters.setEncryptFiles(true);

            //Set the encryption method to AES Zip Encryption
            parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);

            //AES_STRENGTH_128 - For both encryption and decryption
            //AES_STRENGTH_192 - For decryption only
            //AES_STRENGTH_256 - For both encryption and decryption
            //Key strength 192 cannot be used for encryption. But if a zip file already has a
            //file encrypted with key strength of 192, then Zip4j can decrypt this file
            parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);

            //set password
            parameters.setPassword("your password here");

// Now add files to the zip file
            // Note: To add a single file, the method addFile can be used
            // Note: If the zip file already exists and if this zip file is a split file
            // then this method throws an exception as Zip Format Specification does not 
            // allow updating split zip files
            zipFile.addFiles(filesToAdd, parameters);

setEncryptionMethod（）将类型设置为所需的加密。
和setAesKeyStrength（）设置加密算法的强度。

setEncryptionMethod() sets the types to encryption you want.and setAesKeyStrength() sets the strength of the encryption algorithm.

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