public Shannon()
{
Shannon shannon = this;
this.R = new int[16];
this.CRC = new int[16];
this.initR = new int[16];
}
public virtual void macOnly(byte[] buffer)
{
int index1 = 0;
int length = buffer.Length;
if (this.nbuf != 0)
{
for (; this.nbuf != 0 && length != 0; length += -1)
{
Shannon shannon = this;
int mbuf = shannon.mbuf;
byte[] numArray = buffer;
int index2 = index1;
++index1;
int num = (int)(sbyte)numArray[index2] << 32 - this.nbuf;
shannon.mbuf = mbuf ^ num;
this.nbuf -= 8;
}
if (this.nbuf != 0)
{
return;
}
this.macFunc(this.mbuf);
}
for (int index2 = length & -4; index1 < index2; index1 += 4)
{
this.cycle();
this.macFunc((int)buffer[index1 + 3] << 24 | (int)buffer[index1 + 2] << 16 | (int)buffer[index1 + 1] << 8 | (int)buffer[index1]);
}
int num1 = length & 3;
if (num1 == 0)
{
return;
}
this.cycle();
this.mbuf = 0;
for (this.nbuf = 32; this.nbuf != 0 && num1 != 0; num1 += -1)
{
Shannon shannon = this;
int mbuf = shannon.mbuf;
byte[] numArray = buffer;
int index2 = index1;
++index1;
int num2 = (int)(sbyte)numArray[index2] << 32 - this.nbuf;
shannon.mbuf = mbuf ^ num2;
this.nbuf -= 8;
}
}
