Реферат Розрахунок показників і побудова основних елементів захищених обчислювальних мереж. Розробка програмної реалізації криптографічних алгоритмів

нкції.

1. lin.cpp

// =================== (c) Bashmakov AV Orel, 2001 ===========

// = started 23.10 03.05.01 =

// = finished 21.14 24.05.01 =

// ======================================== =============

# include

// ---------------------------------------- -----------------------------------

# define N 6

{

unsigned temp = 0;

for (int i = 0; i

{

for (int j = temp; j

{

if (i == j) T [i] [j] = rand ()% 0xffffU;

else T [i] [j] = T [j] [i] = rand ()% 0xffffU;

}

temp + +;

}

}

{

for (int i = 0; i

}

{

unsigned long temp1 = 0U;

unsigned long temp2 = 0U;

unsigned S [N] = {0U,};

for (int i = 0; i

{

temp2 = 0;

for (int j = 0; j

{

temp1 = ((unsigned long) T [i] [j] * R1 [j]);

temp2 = ((temp1% 0xffffU) + temp2)% 0xffffU;

}

S [i] = (unsigned) temp2;

}

temp2 = 0;

for (i = 0; i

{

temp1 = (unsigned long) S [i] * R2 [i];

temp2 = ((temp1% 0xffffU) + temp2)% 0xffffU;

}

return temp2;

}

// ---------------------------------------- --------------------------------- long Pow_N (unsigned long a, unsigned long k, unsigned long n)

{

unsigned long A, B, K, q, r;

K = k;

B = 1;

A = a;: q = K/2;

r = K-2 * q;

K = q;

if (r == 0) goto s5;

B = (A * B)% n;

if (K == 0) re...