diff options
Diffstat (limited to 'crypto/src/math/ec/custom/sec/SecP256K1Field.cs')
| -rw-r--r-- | crypto/src/math/ec/custom/sec/SecP256K1Field.cs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecP256K1Field.cs b/crypto/src/math/ec/custom/sec/SecP256K1Field.cs index 9a8915c01..a065ee790 100644 --- a/crypto/src/math/ec/custom/sec/SecP256K1Field.cs +++ b/crypto/src/math/ec/custom/sec/SecP256K1Field.cs @@ -97,6 +97,12 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec Reduce(tt, z); } + public static void Multiply(uint[] x, uint[] y, uint[] z, uint[] tt) + { + Nat256.Mul(x, y, tt); + Reduce(tt, z); + } + public static void MultiplyAddToExt(uint[] x, uint[] y, uint[] zz) { uint c = Nat256.MulAddTo(x, y, zz); @@ -170,6 +176,12 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec Reduce(tt, z); } + public static void Square(uint[] x, uint[] z, uint[] tt) + { + Nat256.Square(x, tt); + Reduce(tt, z); + } + public static void SquareN(uint[] x, int n, uint[] z) { Debug.Assert(n > 0); @@ -185,6 +197,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec } } + public static void SquareN(uint[] x, int n, uint[] z, uint[] tt) + { + Debug.Assert(n > 0); + + Nat256.Square(x, tt); + Reduce(tt, z); + + while (--n > 0) + { + Nat256.Square(z, tt); + Reduce(tt, z); + } + } + public static void Subtract(uint[] x, uint[] y, uint[] z) { int c = Nat256.Sub(x, y, z); |