All subclasses to control the choice of width to use

1 files changed, 6 insertions, 2 deletions

diff --git a/core/src/main/java/org/bouncycastle/math/ec/FixedPointCombMultiplier.java b/core/src/main/java/org/bouncycastle/math/ec/FixedPointCombMultiplier.java
index 84fbf6a5..d2cc2e3b 100644
--- a/core/src/main/java/org/bouncycastle/math/ec/FixedPointCombMultiplier.java
+++ b/core/src/main/java/org/bouncycastle/math/ec/FixedPointCombMultiplier.java
@@ -20,8 +20,7 @@ public class FixedPointCombMultiplier extends AbstractECMultiplier
             throw new IllegalStateException("fixed-point comb doesn't support scalars larger than the curve order");
         }
 
-        // TODO Call method to let subclasses select width
-        int width = size > 257 ? 6 : 5;
+        int width = getWidthForCombSize(size);
 
         FixedPointPreCompInfo info = FixedPointUtil.precompute(p, width);
         ECPoint[] lookupTable = info.getPreComp();
@@ -49,4 +48,9 @@ public class FixedPointCombMultiplier extends AbstractECMultiplier
 
         return R;
     }
+
+    protected int getWidthForCombSize(int combSize)
+    {
+        return combSize > 257 ? 6 : 5;
+    }
 }