MPC-abstract algebra

发布于:2023-03-28 ⋅ 阅读:(286) ⋅ 点赞:(0)

Prime Number素数

definition:除了1和本身,不能被任何数分解的数,称为prime,否则称为composite number.

natural number:自然数

even number:偶数

odd number:奇数

判断是否为prime number的方法:trival division, Miller–Rabin primality test,AKS primality test

application:information technology(public key encryption)

哥德巴赫猜想:每个大于2的偶数证书可以表示为两个素数之和

Reference:

https://en.wikipedia.org/wiki...

Fermat Little theorm

如果p是一个素数,对于任何整数a,$a^P-a= b*p .$, where b is an integer.转换成模数运算为:

$a^P==a (mod P)$

For example, if a = 2 and p = 7, then$2^7=128$, $and 128 − 2 = 126 = 7 × 18 $ isan integer multiple of 7.

https://brilliant.org/wiki/fe...

https://en.wikipedia.org/wiki...

The ring Z/nZℤ/nℤ is a field if and only if nn is prime

Abstract algebra

Integer Domains

取模运算中,求解方程组的过程和normal algebra不一样。

zero divisors

https://en.wikipedia.org/wiki...

commutative ring


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