密碼產生器C實現

標籤：

#include <stdio.h>
#include <string.h>
#include <time.h>


//const char lower_chars[] = "abcdefghijklmnopqrstuvwxyz";
//const char upper_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
//const char number_chars[] = "0123456789"; 
const char lower_chars[] = "abcdefghijkmnpqrstuvwxyz"; // no l or o
const char upper_chars[] = "ABCDEFGHJKLMNPQRSTUVWXYZ"; // no I or O
const char number_chars[] = "23456789"; // no 1 or 0
const char special_chars[] = "[email protected]#$%^&*()-=_+[]{};:‘\"<>,.?/";


const int _ks_pass_len = 17;


void mkpass(char pass[_ks_pass_len+1])
{
int i = 0, j = 0, k = 0,n = 0;
n = _ks_pass_len/4;
for (; i < n; i++)
{
pass[i] = lower_chars[rand()%(strlen(lower_chars))];
pass[i+n] = upper_chars[rand()%(strlen(upper_chars))];
pass[i+2*n] = number_chars[rand()%(strlen(number_chars))];
pass[i+3*n] = special_chars[rand()%(strlen(special_chars))];
}


j = _ks_pass_len - 4*n;
for (i = 0; i<j; i++)
{
pass[i+4*n] = special_chars[rand()%(strlen(special_chars))];
}


//字元亂序
for (i = 0; i < 32; i++)
{
j = rand()%(_ks_pass_len);
k = pass[j];
pass[j] = pass[i%_ks_pass_len];
pass[i%_ks_pass_len] = k;
}


pass[_ks_pass_len] = ‘\0‘;
}


int _tmain(int argc, _TCHAR* argv[])
{
srand(time(0));
char szPass[_ks_pass_len+1];
for (int i=0; i<16; i++)
{
mkpass(szPass);
printf("%s\n",szPass);
}
return 0;
}

密碼產生器C實現