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Assets/BestHTTP/SecureProtocol/math/ec/multiplier/AbstractECMultiplier.cs

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+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+
+namespace Org.BouncyCastle.Math.EC.Multiplier
+{
+    public abstract class AbstractECMultiplier
+        : ECMultiplier
+    {
+        public virtual ECPoint Multiply(ECPoint p, BigInteger k)
+        {
+            int sign = k.SignValue;
+            if (sign == 0 || p.IsInfinity)
+                return p.Curve.Infinity;
+
+            ECPoint positive = MultiplyPositive(p, k.Abs());
+            ECPoint result = sign > 0 ? positive : positive.Negate();
+
+            /*
+             * Although the various multipliers ought not to produce invalid output under normal
+             * circumstances, a final check here is advised to guard against fault attacks.
+             */
+            return ECAlgorithms.ValidatePoint(result);
+        }
+
+        protected abstract ECPoint MultiplyPositive(ECPoint p, BigInteger k);
+    }
+}
+
+#endif