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加密算法学习笔记

Published at 2024-05-09 23:18:53Viewed 193 times
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加密算法:对称加密算法+非对称算法


对称加密算法:加密密匙解密密匙,加密用加密算法,解密用加密算法的逆算法。

非对称算法:公开密匙+私有密匙。私有密匙为自己持有(密匙持有者),公开密匙为与自己通信的人持有。密文经过私有密匙加密,只能公开密匙解密。相反,密文经过公开密匙加密,只能私有密匙解密。


椭圆曲线加密算法:使用数学中更抽象的椭圆曲线进行更安全的加密。

Note:在代数几何中,不严格的说,椭圆曲线为$y^{2}=f(x)$的解,其中$f(x)$为某个域$K$上的三次多项式。

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