CHAPTER 79. “QR9”: RUBIK’S CUBE INSPIRED AMATEUR CRYPTO-ALGORITHM CHAPTER 79. “QR9”: RUBIK’S CUBE INSPIRED AMATEUR CRYPTO-ALGORITHM
for (x=0; x<8; x++)
for (y=0; y<8; y++)
tmp[x][y]=get_bit (x, y, row);
for (x=0; x<8; x++)
for (y=0; y<8; y++)
set_bit (y, 7-x, row, tmp[x][y]);
};
void rotate_t (int row)
{
bool tmp[8][8];
int y, z;
for (y=0; y<8; y++)
for (z=0; z<8; z++)
tmp[y][z]=get_bit (row, y, z);
for (y=0; y<8; y++)
for (z=0; z<8; z++)
set_bit (row, z, 7-y, tmp[y][z]);
};
void rotate_l (int row)
{
bool tmp[8][8];
int x, z;
for (x=0; x<8; x++)
for (z=0; z<8; z++)
tmp[x][z]=get_bit (x, row, z);
for (x=0; x<8; x++)
for (z=0; z<8; z++)
set_bit (7-z, row, x, tmp[x][z]);
};
void rotate_all (char pwd, int v)
{
char p=pwd;
while (*p)
{
char c=*p;
int q;
c=tolower (c);
if (c>='a' && c<='z')
{
q=c-'a';
if (q>24)
q-=24;
int quotient=q/3;
int remainder=q % 3;
switch (remainder)
{
case 0: for (int i=0; i<v; i++) rotate_f (quotient); break;
case 1: for (int i=0; i<v; i++) rotate_t (quotient); break;
case 2: for (int i=0; i<v; i++) rotate_l (quotient); break;
};
};
p++;
};
};