破解加密系统的人通常不按常理出牌。
The people who break cryptographic systems don't follow rules; they cheat.
然而，随着测量技术和分析技术的不断进步，出现了许多破解加密集成电路的攻击方法。
However, with the improvement of signal measurement and analysis technologies, cryptographic circuits are facing many kinds of attacking methods.
如果围绕某个函数的简单方向构造一个加密算法，那么想要破解加密的任何人都需要从相反的方向来解密。
If you build an encryption algorithm around a function's easy direction, anyone wanting to break your encryption needs to work at it from the hard side.
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