| private static leftRotate ( uint x, int s ) : uint | ||
| x | uint | |
| s | int | |
| Résultat | uint | |
private void camelliaFLs(uint[] s, uint[] fkey, int keyoff)
{
s[1] ^= CamelliaLightEngine.leftRotate(s[0] & fkey[keyoff], 1);
s[0] ^= (fkey[1 + keyoff] | s[1]);
s[2] ^= (fkey[3 + keyoff] | s[3]);
s[3] ^= CamelliaLightEngine.leftRotate(fkey[2 + keyoff] & s[2], 1);
}
private void camelliaF2(uint[] s, uint[] skey, int keyoff)
{
uint num = s[0] ^ skey[keyoff];
uint num2 = this.sbox4((int)((byte)num));
num2 |= this.sbox3((int)((byte)(num >> 8))) << 8;
num2 |= this.sbox2((int)((byte)(num >> 16))) << 16;
num2 |= (uint)((uint)CamelliaLightEngine.SBOX1[(int)((byte)(num >> 24))] << 24);
uint num3 = s[1] ^ skey[1 + keyoff];
uint num4 = (uint)CamelliaLightEngine.SBOX1[(int)((byte)num3)];
num4 |= this.sbox4((int)((byte)(num3 >> 8))) << 8;
num4 |= this.sbox3((int)((byte)(num3 >> 16))) << 16;
num4 |= this.sbox2((int)((byte)(num3 >> 24))) << 24;
num4 = CamelliaLightEngine.leftRotate(num4, 8);
num2 ^= num4;
num4 = (CamelliaLightEngine.leftRotate(num4, 8) ^ num2);
num2 = (CamelliaLightEngine.rightRotate(num2, 8) ^ num4);
s[2] ^= (CamelliaLightEngine.leftRotate(num4, 16) ^ num2);
s[3] ^= CamelliaLightEngine.leftRotate(num2, 8);
num = (s[2] ^ skey[2 + keyoff]);
num2 = this.sbox4((int)((byte)num));
num2 |= this.sbox3((int)((byte)(num >> 8))) << 8;
num2 |= this.sbox2((int)((byte)(num >> 16))) << 16;
num2 |= (uint)((uint)CamelliaLightEngine.SBOX1[(int)((byte)(num >> 24))] << 24);
num3 = (s[3] ^ skey[3 + keyoff]);
num4 = (uint)CamelliaLightEngine.SBOX1[(int)((byte)num3)];
num4 |= this.sbox4((int)((byte)(num3 >> 8))) << 8;
num4 |= this.sbox3((int)((byte)(num3 >> 16))) << 16;
num4 |= this.sbox2((int)((byte)(num3 >> 24))) << 24;
num4 = CamelliaLightEngine.leftRotate(num4, 8);
num2 ^= num4;
num4 = (CamelliaLightEngine.leftRotate(num4, 8) ^ num2);
num2 = (CamelliaLightEngine.rightRotate(num2, 8) ^ num4);
s[0] ^= (CamelliaLightEngine.leftRotate(num4, 16) ^ num2);
s[1] ^= CamelliaLightEngine.leftRotate(num2, 8);
}
