byte[] aArr = { 113, 76, 155, 186, 152, 127, 248, 183 };
byte[] bArr = new byte[8];
byte[] key = { 0, 0, 0, 0, 0, 0, 0, 0 };
for (int i = 0; i < 8; i++)
{
if (i > 0)
{
key[i % 8] = (byte)(key[i % 8] + aArr[i - 1] ^ (byte)i);
bArr[i] = (byte)(aArr[i] - aArr[i - 1] ^ key[i % 8]);
}
else
{
bArr[i] = (byte)(aArr[i] ^ key[0]);
}
}
Log(aArr, " aArr ");
Log(bArr, " bArr ");
key = new byte[8];
for (int i = 0; i < 8; i++)
{
if (i > 0)
{
key[i % 8] = (byte)((aArr[i] - bArr[i]) ^ aArr[i - 1]);
key[i % 8] = (byte)(key[i % 8] - aArr[i - 1] ^ (byte)i);
}
else
{
key[0] = (byte)(aArr[i] ^ bArr[i]);
}
}
Log(key, "CalcKey");
输出结果：
[ aArr ] 71 4C 9B BA 98 7F F8 B7
[ bArr ] 71 AB 01 87 60 7A 00 40
[CalcKey] 00 5E 88 0E CC 00 0E 90
为什么逆推出来的Key不是8个0呢~~ 100分求教
