我一直想加固到底有什么用呢？
它不也是防君子不防小人的东西吗？甚至于所有字节码如果想让系统运行的话，那系统一定要可以识别这个字节码。
那如果一个系统本身在加载字节码的地方提取了一份甚至于搜索已加载代码中的调用来不停的请求 loadClass 之类的行为，那么加固外壳的解密功能完全不可能拒绝系统的这种请求。最终依然会被探索出被加密代码的解密字节码（
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Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”
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