C# (CSharp) Obscur.Core.Cryptography.Support.Math.EllipticCurve.Custom.SEC Nat256.Add Examples

Example #1

File: SecP256K1Field.cs Project: viruswevh/ObscurCore

        public static void Add(uint[] x, uint[] y, uint[] z)
        {
            uint c = Nat256.Add(x, y, z);

            if (c != 0 || (z[7] == P7 && Nat256.Gte(z, P)))
            {
                Nat.Add33To(8, PInv33, z);
            }
        }

Example #2

 public static void Half(uint[] x, uint[] z)
 {
     if ((x[0] & 1) == 0)
     {
         Nat.ShiftDownBit(8, x, 0, z);
     }
     else
     {
         uint c = Nat256.Add(x, P, z);
         Nat.ShiftDownBit(8, z, c);
     }
 }