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base64 加密解密ios代码，已测试-base64 encryption and decryption ios code, have been tested

本源码为我的毕业设计，题目为，基于iOS平台的数据加密程序，实际为AES加密算法。用objective—C实现，在ios开发平台SDK 下打开可运行-The source code for my graduation project entitled, based on the the iOS platform data encryption program, the actual AES encryption algorithm. Objective-C to achieve open can

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