9 files changed, 109 insertions, 0 deletions
diff --git a/crypto/src/math/raw/Nat.cs b/crypto/src/math/raw/Nat.cs
index 1f9ab00ec..cf6516c61 100644
--- a/crypto/src/math/raw/Nat.cs
+++ b/crypto/src/math/raw/Nat.cs
@@ -207,6 +207,11 @@ namespace Org.BouncyCastle.Math.Raw
             return z;
         }
 
+        public static void Copy(int len, uint[] x, int xOff, uint[] z, int zOff)
+        {
+            Array.Copy(x, xOff, z, zOff, len);
+        }
+
         public static uint[] Create(int len)
         {
             return new uint[len];
diff --git a/crypto/src/math/raw/Nat128.cs b/crypto/src/math/raw/Nat128.cs
index 1d3b64d32..27ed5abe4 100644
--- a/crypto/src/math/raw/Nat128.cs
+++ b/crypto/src/math/raw/Nat128.cs
@@ -111,12 +111,26 @@ namespace Org.BouncyCastle.Math.Raw
             z[3] = x[3];
         }
 
+        public static void Copy(uint[] x, int xOff, uint[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+        }
+
         public static void Copy64(ulong[] x, ulong[] z)
         {
             z[0] = x[0];
             z[1] = x[1];
         }
 
+        public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+        }
+
         public static uint[] Create()
         {
             return new uint[4];
diff --git a/crypto/src/math/raw/Nat160.cs b/crypto/src/math/raw/Nat160.cs
index 1fd00e576..57212cae0 100644
--- a/crypto/src/math/raw/Nat160.cs
+++ b/crypto/src/math/raw/Nat160.cs
@@ -129,6 +129,15 @@ namespace Org.BouncyCastle.Math.Raw
             z[4] = x[4];
         }
 
+        public static void Copy(uint[] x, int xOff, uint[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+        }
+
         public static uint[] Create()
         {
             return new uint[5];
diff --git a/crypto/src/math/raw/Nat192.cs b/crypto/src/math/raw/Nat192.cs
index 3099bafab..06c75aa54 100644
--- a/crypto/src/math/raw/Nat192.cs
+++ b/crypto/src/math/raw/Nat192.cs
@@ -145,6 +145,16 @@ namespace Org.BouncyCastle.Math.Raw
             z[5] = x[5];
         }
 
+        public static void Copy(uint[] x, int xOff, uint[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+            z[zOff + 5] = x[xOff + 5];
+        }
+
         public static void Copy64(ulong[] x, ulong[] z)
         {
             z[0] = x[0];
@@ -152,6 +162,13 @@ namespace Org.BouncyCastle.Math.Raw
             z[2] = x[2];
         }
 
+        public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+        }
+
         public static uint[] Create()
         {
             return new uint[6];
diff --git a/crypto/src/math/raw/Nat224.cs b/crypto/src/math/raw/Nat224.cs
index 978caf265..ff1eb6306 100644
--- a/crypto/src/math/raw/Nat224.cs
+++ b/crypto/src/math/raw/Nat224.cs
@@ -216,6 +216,17 @@ namespace Org.BouncyCastle.Math.Raw
             z[6] = x[6];
         }
 
+        public static void Copy(uint[] x, int xOff, uint[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+            z[zOff + 5] = x[xOff + 5];
+            z[zOff + 6] = x[xOff + 6];
+        }
+
         public static uint[] Create()
         {
             return new uint[7];
diff --git a/crypto/src/math/raw/Nat256.cs b/crypto/src/math/raw/Nat256.cs
index 09c751a5a..2be03d642 100644
--- a/crypto/src/math/raw/Nat256.cs
+++ b/crypto/src/math/raw/Nat256.cs
@@ -239,6 +239,18 @@ namespace Org.BouncyCastle.Math.Raw
             z[7] = x[7];
         }
 
+        public static void Copy(uint[] x, int xOff, uint[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+            z[zOff + 5] = x[xOff + 5];
+            z[zOff + 6] = x[xOff + 6];
+            z[zOff + 7] = x[xOff + 7];
+        }
+
         public static void Copy64(ulong[] x, ulong[] z)
         {
             z[0] = x[0];
@@ -247,6 +259,14 @@ namespace Org.BouncyCastle.Math.Raw
             z[3] = x[3];
         }
 
+        public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+        }
+
         public static uint[] Create()
         {
             return new uint[8];
diff --git a/crypto/src/math/raw/Nat320.cs b/crypto/src/math/raw/Nat320.cs
index c7daa71e2..0ad677db4 100644
--- a/crypto/src/math/raw/Nat320.cs
+++ b/crypto/src/math/raw/Nat320.cs
@@ -16,6 +16,15 @@ namespace Org.BouncyCastle.Math.Raw
             z[4] = x[4];
         }
 
+        public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+        }
+
         public static ulong[] Create64()
         {
             return new ulong[5];
diff --git a/crypto/src/math/raw/Nat448.cs b/crypto/src/math/raw/Nat448.cs
index 52a253f1b..b0774b37a 100644
--- a/crypto/src/math/raw/Nat448.cs
+++ b/crypto/src/math/raw/Nat448.cs
@@ -18,6 +18,17 @@ namespace Org.BouncyCastle.Math.Raw
             z[6] = x[6];
         }
 
+        public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+            z[zOff + 5] = x[xOff + 5];
+            z[zOff + 6] = x[xOff + 6];
+        }
+
         public static ulong[] Create64()
         {
             return new ulong[7];
diff --git a/crypto/src/math/raw/Nat576.cs b/crypto/src/math/raw/Nat576.cs
index 813fb86be..14279b61a 100644
--- a/crypto/src/math/raw/Nat576.cs
+++ b/crypto/src/math/raw/Nat576.cs
@@ -20,6 +20,19 @@ namespace Org.BouncyCastle.Math.Raw
             z[8] = x[8];
         }
 
+        public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
+        {
+            z[zOff + 0] = x[xOff + 0];
+            z[zOff + 1] = x[xOff + 1];
+            z[zOff + 2] = x[xOff + 2];
+            z[zOff + 3] = x[xOff + 3];
+            z[zOff + 4] = x[xOff + 4];
+            z[zOff + 5] = x[xOff + 5];
+            z[zOff + 6] = x[xOff + 6];
+            z[zOff + 7] = x[xOff + 7];
+            z[zOff + 8] = x[xOff + 8];
+        }
+
         public static ulong[] Create64()
         {
             return new ulong[9];