Index precomputation info by name

1 files changed, 5 insertions, 3 deletions

diff --git a/crypto/src/math/ec/multiplier/WNafUtilities.cs b/crypto/src/math/ec/multiplier/WNafUtilities.cs

index d37da8a5e..eac47222b 100644
--- a/crypto/src/math/ec/multiplier/WNafUtilities.cs
+++ b/crypto/src/math/ec/multiplier/WNafUtilities.cs
@@ -4,6 +4,8 @@ namespace Org.BouncyCastle.Math.EC.Multiplier
 {
     public abstract class WNafUtilities
     {
+        public static readonly string PRECOMP_NAME = "bc_wnaf";
+
         private static int[] DEFAULT_WINDOW_SIZE_CUTOFFS = new int[]{ 13, 41, 121, 337, 897, 2305 };
 
         public static int[] GenerateCompactNaf(BigInteger k)
@@ -188,7 +190,7 @@ namespace Org.BouncyCastle.Math.EC.Multiplier
          * most one is non-zero.
          * @param k The integer of which the Window NAF is computed.
          * @return The Window NAF of the given width, such that the following holds:
-         * <code>k = &sum;<sub>i=0</sub><sup>l-1</sup> k<sub>i</sub>2<sup>i</sup>
+         * <code>k = &amp;sum;<sub>i=0</sub><sup>l-1</sup> k<sub>i</sub>2<sup>i</sup>
          * </code>, where the <code>k<sub>i</sub></code> denote the elements of the
          * returned <code>byte[]</code>.
          */
@@ -292,7 +294,7 @@ namespace Org.BouncyCastle.Math.EC.Multiplier
         public static WNafPreCompInfo Precompute(ECPoint p, int width, bool includeNegated)
         {
             ECCurve c = p.Curve;
-            WNafPreCompInfo wnafPreCompInfo = GetWNafPreCompInfo(c.GetPreCompInfo(p));
+            WNafPreCompInfo wnafPreCompInfo = GetWNafPreCompInfo(c.GetPreCompInfo(p, PRECOMP_NAME));
             
             ECPoint[] preComp = wnafPreCompInfo.PreComp;
             if (preComp == null)
@@ -363,7 +365,7 @@ namespace Org.BouncyCastle.Math.EC.Multiplier
                 wnafPreCompInfo.PreCompNeg = preCompNeg;
             }
 
-            c.SetPreCompInfo(p, wnafPreCompInfo);
+            c.SetPreCompInfo(p, PRECOMP_NAME, wnafPreCompInfo);
 
             return wnafPreCompInfo;
         }