1 files changed, 34 insertions, 27 deletions
diff --git a/crypto/src/math/ec/multiplier/ReferenceMultiplier.cs b/crypto/src/math/ec/multiplier/ReferenceMultiplier.cs
index cdccffc2d..a3763848e 100644
--- a/crypto/src/math/ec/multiplier/ReferenceMultiplier.cs
+++ b/crypto/src/math/ec/multiplier/ReferenceMultiplier.cs
@@ -1,30 +1,37 @@
namespace Org.BouncyCastle.Math.EC.Multiplier
{
- internal class ReferenceMultiplier
- : ECMultiplier
- {
- /**
- * Simple shift-and-add multiplication. Serves as reference implementation
- * to verify (possibly faster) implementations in
- * {@link org.bouncycastle.math.ec.ECPoint ECPoint}.
- *
- * @param p The point to multiply.
- * @param k The factor by which to multiply.
- * @return The result of the point multiplication <code>k * p</code>.
- */
- public ECPoint Multiply(ECPoint p, BigInteger k, PreCompInfo preCompInfo)
- {
- ECPoint q = p.Curve.Infinity;
- int t = k.BitLength;
- for (int i = 0; i < t; i++)
- {
- if (k.TestBit(i))
- {
- q = q.Add(p);
- }
- p = p.Twice();
- }
- return q;
- }
- }
+ public class ReferenceMultiplier
+ : ECMultiplier
+ {
+ /**
+ * Simple shift-and-add multiplication. Serves as reference implementation
+ * to verify (possibly faster) implementations in
+ * {@link org.bouncycastle.math.ec.ECPoint ECPoint}.
+ *
+ * @param p The point to multiply.
+ * @param k The factor by which to multiply.
+ * @return The result of the point multiplication <code>k * p</code>.
+ */
+ public virtual ECPoint Multiply(ECPoint p, BigInteger k)
+ {
+ ECPoint q = p.Curve.Infinity;
+ int t = k.BitLength;
+ if (t > 0)
+ {
+ if (k.TestBit(0))
+ {
+ q = p;
+ }
+ for (int i = 1; i < t; i++)
+ {
+ p = p.Twice();
+ if (k.TestBit(i))
+ {
+ q = q.Add(p);
+ }
+ }
+ }
+ return q;
+ }
+ }
}
|
