public virtual AbstractF2mPoint TauPow(int pow)
{
//IL_00bc: Unknown result type (might be due to invalid IL or missing references)
if (base.IsInfinity)
{
return(this);
}
ECCurve curve = Curve;
int coordinateSystem = curve.CoordinateSystem;
ECFieldElement rawXCoord = base.RawXCoord;
switch (coordinateSystem)
{
case 0:
case 5:
{
ECFieldElement rawYCoord2 = base.RawYCoord;
return((AbstractF2mPoint)curve.CreateRawPoint(rawXCoord.SquarePow(pow), rawYCoord2.SquarePow(pow), base.IsCompressed));
}
case 1:
case 6:
{
ECFieldElement rawYCoord = base.RawYCoord;
ECFieldElement eCFieldElement = base.RawZCoords[0];
return((AbstractF2mPoint)curve.CreateRawPoint(rawXCoord.SquarePow(pow), rawYCoord.SquarePow(pow), new ECFieldElement[1] {
eCFieldElement.SquarePow(pow)
}, base.IsCompressed));
}
default:
throw new InvalidOperationException("unsupported coordinate system");
}
}
public virtual AbstractF2mPoint TauPow(int pow)
{
if (base.IsInfinity)
{
return(this);
}
ECCurve curve = this.Curve;
int coordinateSystem = curve.CoordinateSystem;
ECFieldElement rawXCoord = base.RawXCoord;
switch (coordinateSystem)
{
case 0:
case 5:
{
ECFieldElement rawYCoord = base.RawYCoord;
return((AbstractF2mPoint)curve.CreateRawPoint(rawXCoord.SquarePow(pow), rawYCoord.SquarePow(pow), base.IsCompressed));
}
case 1:
case 6:
{
ECFieldElement rawYCoord2 = base.RawYCoord;
ECFieldElement eCFieldElement = base.RawZCoords[0];
return((AbstractF2mPoint)curve.CreateRawPoint(rawXCoord.SquarePow(pow), rawYCoord2.SquarePow(pow), new ECFieldElement[]
{
eCFieldElement.SquarePow(pow)
}, base.IsCompressed));
}
}
throw new InvalidOperationException("unsupported coordinate system");
}
public virtual ECPoint Lookup(int index)
{
int FE_BYTES = (m_outer.FieldSize + 7) / 8;
byte[] x = new byte[FE_BYTES], y = new byte[FE_BYTES];
int pos = 0;
for (int i = 0; i < m_size; ++i)
{
byte MASK = (byte)(((i ^ index) - 1) >> 31);
for (int j = 0; j < FE_BYTES; ++j)
{
x[j] ^= (byte)(m_table[pos + j] & MASK);
y[j] ^= (byte)(m_table[pos + FE_BYTES + j] & MASK);
}
pos += (FE_BYTES * 2);
}
ECFieldElement X = m_outer.FromBigInteger(new BigInteger(1, x));
ECFieldElement Y = m_outer.FromBigInteger(new BigInteger(1, y));
return(m_outer.CreateRawPoint(X, Y, false));
}
private ECPoint CreatePoint(byte[] x, byte[] y)
{
ECFieldElement X = m_outer.FromBigInteger(new BigInteger(1, x));
ECFieldElement Y = m_outer.FromBigInteger(new BigInteger(1, y));
return(m_outer.CreateRawPoint(X, Y, false));
}