public static void Invert(ulong[] x, ulong[] z)
{
//IL_0008: Unknown result type (might be due to invalid IL or missing references)
if (Nat448.IsZero64(x))
{
throw new InvalidOperationException();
}
ulong[] array = Nat448.Create64();
ulong[] array2 = Nat448.Create64();
ulong[] array3 = Nat448.Create64();
Square(x, array);
SquareN(array, 1, array2);
Multiply(array, array2, array);
SquareN(array2, 1, array2);
Multiply(array, array2, array);
SquareN(array, 3, array2);
Multiply(array, array2, array);
SquareN(array, 6, array2);
Multiply(array, array2, array);
SquareN(array, 12, array2);
Multiply(array, array2, array3);
SquareN(array3, 24, array);
SquareN(array, 24, array2);
Multiply(array, array2, array);
SquareN(array, 48, array2);
Multiply(array, array2, array);
SquareN(array, 96, array2);
Multiply(array, array2, array);
SquareN(array, 192, array2);
Multiply(array, array2, array);
Multiply(array, array3, z);
}
public static void Invert(ulong[] x, ulong[] z)
{
if (Nat448.IsZero64(x))
{
throw new InvalidOperationException();
}
ulong[] array = Nat448.Create64();
ulong[] array2 = Nat448.Create64();
ulong[] array3 = Nat448.Create64();
Square(x, array);
SquareN(array, 1, array2);
Multiply(array, array2, array);
SquareN(array2, 1, array2);
Multiply(array, array2, array);
SquareN(array, 3, array2);
Multiply(array, array2, array);
SquareN(array, 6, array2);
Multiply(array, array2, array);
SquareN(array, 12, array2);
Multiply(array, array2, array3);
SquareN(array3, 24, array);
SquareN(array, 24, array2);
Multiply(array, array2, array);
SquareN(array, 48, array2);
Multiply(array, array2, array);
SquareN(array, 96, array2);
Multiply(array, array2, array);
SquareN(array, 192, array2);
Multiply(array, array2, array);
Multiply(array, array3, z);
}
public static void Invert(ulong[] x, ulong[] z)
{
if (Nat448.IsZero64(x))
{
throw new InvalidOperationException();
}
ulong[] numArray = Nat448.Create64();
ulong[] numArray2 = Nat448.Create64();
ulong[] numArray3 = Nat448.Create64();
Square(x, numArray);
SquareN(numArray, 1, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray2, 1, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray, 3, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray, 6, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray, 12, numArray2);
Multiply(numArray, numArray2, numArray3);
SquareN(numArray3, 0x18, numArray);
SquareN(numArray, 0x18, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray, 0x30, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray, 0x60, numArray2);
Multiply(numArray, numArray2, numArray);
SquareN(numArray, 0xc0, numArray2);
Multiply(numArray, numArray2, numArray);
Multiply(numArray, numArray3, z);
}
public override ECFieldElement SquarePow(int pow)
{
if (pow < 1)
{
return(this);
}
ulong[] z = Nat448.Create64();
SecT409Field.SquareN(x, pow, z);
return(new SecT409FieldElement(z));
}
public override ECFieldElement SquarePlusProduct(ECFieldElement x, ECFieldElement y)
{
ulong[] array = this.x;
ulong[] array2 = ((SecT409FieldElement)x).x;
ulong[] y2 = ((SecT409FieldElement)y).x;
ulong[] array3 = Nat.Create64(13);
SecT409Field.SquareAddToExt(array, array3);
SecT409Field.MultiplyAddToExt(array2, y2, array3);
ulong[] z = Nat448.Create64();
SecT409Field.Reduce(array3, z);
return(new SecT409FieldElement(z));
}
public static void Invert(ulong[] x, ulong[] z)
{
if (Nat448.IsZero64(x))
{
throw new InvalidOperationException();
}
// Itoh-Tsujii inversion with bases { 2, 3 }
ulong[] t0 = Nat448.Create64();
ulong[] t1 = Nat448.Create64();
ulong[] t2 = Nat448.Create64();
Square(x, t0);
// 3 | 408
SquareN(t0, 1, t1);
Multiply(t0, t1, t0);
SquareN(t1, 1, t1);
Multiply(t0, t1, t0);
// 2 | 136
SquareN(t0, 3, t1);
Multiply(t0, t1, t0);
// 2 | 68
SquareN(t0, 6, t1);
Multiply(t0, t1, t0);
// 2 | 34
SquareN(t0, 12, t1);
Multiply(t0, t1, t2);
// ! {2,3} | 17
SquareN(t2, 24, t0);
SquareN(t0, 24, t1);
Multiply(t0, t1, t0);
// 2 | 8
SquareN(t0, 48, t1);
Multiply(t0, t1, t0);
// 2 | 4
SquareN(t0, 96, t1);
Multiply(t0, t1, t0);
// 2 | 2
SquareN(t0, 192, t1);
Multiply(t0, t1, t0);
Multiply(t0, t2, z);
}
public override ECFieldElement MultiplyPlusProduct(ECFieldElement b, ECFieldElement x, ECFieldElement y)
{
ulong[] ax = this.x, bx = ((SecT409FieldElement)b).x;
ulong[] xx = ((SecT409FieldElement)x).x, yx = ((SecT409FieldElement)y).x;
ulong[] tt = Nat.Create64(13);
SecT409Field.MultiplyAddToExt(ax, bx, tt);
SecT409Field.MultiplyAddToExt(xx, yx, tt);
ulong[] z = Nat448.Create64();
SecT409Field.Reduce(tt, z);
return(new SecT409FieldElement(z));
}
public override ECFieldElement MultiplyPlusProduct(ECFieldElement b, ECFieldElement x, ECFieldElement y)
{
ulong[] numArray = this.x;
ulong[] numArray2 = ((SecT409FieldElement)b).x;
ulong[] numArray3 = ((SecT409FieldElement)x).x;
ulong[] numArray4 = ((SecT409FieldElement)y).x;
ulong[] zz = Nat.Create64(13);
SecT409Field.MultiplyAddToExt(numArray, numArray2, zz);
SecT409Field.MultiplyAddToExt(numArray3, numArray4, zz);
ulong[] z = Nat448.Create64();
SecT409Field.Reduce(zz, z);
return(new SecT409FieldElement(z));
}
public override ECPoint LookupVar(int index)
{
ulong[] x = Nat448.Create64(), y = Nat448.Create64();
int pos = index * SECT409R1_FE_LONGS * 2;
for (int j = 0; j < SECT409R1_FE_LONGS; ++j)
{
x[j] = m_table[pos + j];
y[j] = m_table[pos + SECT409R1_FE_LONGS + j];
}
return(CreatePoint(x, y));
}
public virtual ECPoint Lookup(int index)
{
ulong[] x = Nat448.Create64(), y = Nat448.Create64();
int pos = 0;
for (int i = 0; i < m_size; ++i)
{
ulong MASK = (ulong)(long)(((i ^ index) - 1) >> 31);
for (int j = 0; j < SECT409R1_FE_LONGS; ++j)
{
x[j] ^= m_table[pos + j] & MASK;
y[j] ^= m_table[pos + SECT409R1_FE_LONGS + j] & MASK;
}
pos += (SECT409R1_FE_LONGS * 2);
}
return(m_outer.CreateRawPoint(new SecT409FieldElement(x), new SecT409FieldElement(y), false));
}
public override ECPoint Lookup(int index)
{
ulong[] x = Nat448.Create64(), y = Nat448.Create64();
int pos = 0;
for (int i = 0; i < m_size; ++i)
{
ulong MASK = (ulong)(long)(((i ^ index) - 1) >> 31);
for (int j = 0; j < SECT409R1_FE_LONGS; ++j)
{
x[j] ^= m_table[pos + j] & MASK;
y[j] ^= m_table[pos + SECT409R1_FE_LONGS + j] & MASK;
}
pos += (SECT409R1_FE_LONGS * 2);
}
return(CreatePoint(x, y));
}
public override ECFieldElement Multiply(ECFieldElement b)
{
ulong[] z = Nat448.Create64();
SecT409Field.Multiply(x, ((SecT409FieldElement)b).x, z);
return(new SecT409FieldElement(z));
}
public override ECFieldElement AddOne()
{
ulong[] z = Nat448.Create64();
SecT409Field.AddOne(x, z);
return(new SecT409FieldElement(z));
}
public SecT409FieldElement()
{
x = Nat448.Create64();
}
public override ECFieldElement Invert()
{
ulong[] z = Nat448.Create64();
SecT409Field.Invert(this.x, z);
return(new SecT409FieldElement(z));
}
public override ECFieldElement Add(ECFieldElement b)
{
ulong[] z = Nat448.Create64();
SecT409Field.Add(this.x, ((SecT409FieldElement)b).x, z);
return(new SecT409FieldElement(z));
}