1 files changed, 4 insertions, 5 deletions
diff --git a/crypto/src/math/ec/ECFieldElement.cs b/crypto/src/math/ec/ECFieldElement.cs
index 13ae32e5d..7a4c9da97 100644
--- a/crypto/src/math/ec/ECFieldElement.cs
+++ b/crypto/src/math/ec/ECFieldElement.cs
@@ -390,11 +390,10 @@ namespace Org.BouncyCastle.Math.EC
protected virtual BigInteger ModInverse(BigInteger x)
{
- // Our BigInteger.ModInverse performance is quite poor, so use the new Nat/Mod classes here
- //return x.ModInverse(q);
- int len = (FieldSize + 31) >> 5;
- uint[] p = Nat.FromBigInteger(len, q);
- uint[] n = Nat.FromBigInteger(len, x);
+ int bits = FieldSize;
+ int len = (bits + 31) >> 5;
+ uint[] p = Nat.FromBigInteger(bits, q);
+ uint[] n = Nat.FromBigInteger(bits, x);
uint[] z = Nat.Create(len);
Mod.Invert(p, n, z);
return Nat.ToBigInteger(len, z);
|
