public override ECFieldElement Negate() { uint[] z = Nat224.Create(); SecP224K1Field.Negate(x, z); return(new SecP224K1FieldElement(z)); }
public override ECFieldElement Subtract(ECFieldElement b) { uint[] z = Nat224.Create(); SecP224K1Field.Subtract(x, ((SecP224K1FieldElement)b).x, z); return(new SecP224K1FieldElement(z)); }
public override ECFieldElement Multiply(ECFieldElement b) { uint[] z = Nat224.Create(); SecP224K1Field.Multiply(x, ((SecP224K1FieldElement)b).x, z); return(new SecP224K1FieldElement(z)); }
public override ECFieldElement Sqrt() { uint[] y = x; if (Nat224.IsZero(y) || Nat224.IsOne(y)) { return(this); } uint[] array = Nat224.Create(); SecP224K1Field.Square(y, array); SecP224K1Field.Multiply(array, y, array); uint[] array2 = array; SecP224K1Field.Square(array, array2); SecP224K1Field.Multiply(array2, y, array2); uint[] array3 = Nat224.Create(); SecP224K1Field.Square(array2, array3); SecP224K1Field.Multiply(array3, y, array3); uint[] array4 = Nat224.Create(); SecP224K1Field.SquareN(array3, 4, array4); SecP224K1Field.Multiply(array4, array3, array4); uint[] array5 = Nat224.Create(); SecP224K1Field.SquareN(array4, 3, array5); SecP224K1Field.Multiply(array5, array2, array5); uint[] array6 = array5; SecP224K1Field.SquareN(array5, 8, array6); SecP224K1Field.Multiply(array6, array4, array6); uint[] array7 = array4; SecP224K1Field.SquareN(array6, 4, array7); SecP224K1Field.Multiply(array7, array3, array7); uint[] array8 = array3; SecP224K1Field.SquareN(array7, 19, array8); SecP224K1Field.Multiply(array8, array6, array8); uint[] array9 = Nat224.Create(); SecP224K1Field.SquareN(array8, 42, array9); SecP224K1Field.Multiply(array9, array8, array9); uint[] z = array8; SecP224K1Field.SquareN(array9, 23, z); SecP224K1Field.Multiply(z, array7, z); uint[] array10 = array7; SecP224K1Field.SquareN(z, 84, array10); SecP224K1Field.Multiply(array10, array9, array10); uint[] z2 = array10; SecP224K1Field.SquareN(z2, 20, z2); SecP224K1Field.Multiply(z2, array6, z2); SecP224K1Field.SquareN(z2, 3, z2); SecP224K1Field.Multiply(z2, y, z2); SecP224K1Field.SquareN(z2, 2, z2); SecP224K1Field.Multiply(z2, y, z2); SecP224K1Field.SquareN(z2, 4, z2); SecP224K1Field.Multiply(z2, array2, z2); SecP224K1Field.Square(z2, z2); uint[] array11 = array9; SecP224K1Field.Square(z2, array11); if (Nat224.Eq(y, array11)) { return(new SecP224K1FieldElement(z2)); } SecP224K1Field.Multiply(z2, PRECOMP_POW2, z2); SecP224K1Field.Square(z2, array11); if (Nat224.Eq(y, array11)) { return(new SecP224K1FieldElement(z2)); } return(null); }