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authorPeter Dettman <peter.dettman@bouncycastle.org>2022-08-02 01:22:48 +0700
committerPeter Dettman <peter.dettman@bouncycastle.org>2022-08-02 01:22:48 +0700
commit17b0cc528f52df638d1261fb872fea7bf4228c95 (patch)
treee361f6e9d10f85a61a06a5bf134a7a883c25b110 /crypto/src/math
parentTLS: 'tls-exporter' channel binding (diff)
downloadBouncyCastle.NET-ed25519-17b0cc528f52df638d1261fb872fea7bf4228c95.tar.xz
Use intrinsics in custom binary curves
Diffstat (limited to 'crypto/src/math')
-rw-r--r--crypto/src/math/ec/custom/sec/SecT113Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT131Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT163Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT193Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT233Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT239Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT283Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT409Field.cs18


-rw-r--r--crypto/src/math/ec/custom/sec/SecT571Field.cs10


9 files changed, 154 insertions, 0 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecT113Field.cs b/crypto/src/math/ec/custom/sec/SecT113Field.cs
index c41d9f7d7..1b3fcc542 100644
--- a/crypto/src/math/ec/custom/sec/SecT113Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT113Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -202,6 +206,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 57 == 0);
             Debug.Assert(y >> 57 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] = z0 & M57;
+                z[zOff + 1] = (z0 >> 57) ^ (z1 << 7);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT131Field.cs b/crypto/src/math/ec/custom/sec/SecT131Field.cs
index 4ff5999a4..53a9b832f 100644
--- a/crypto/src/math/ec/custom/sec/SecT131Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT131Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -301,6 +305,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 45 == 0);
             Debug.Assert(y >> 45 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] = z0 & M44;
+                z[zOff + 1] = (z0 >> 44) ^ (z1 << 20);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT163Field.cs b/crypto/src/math/ec/custom/sec/SecT163Field.cs
index 44105039d..22d41882f 100644
--- a/crypto/src/math/ec/custom/sec/SecT163Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT163Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -312,6 +316,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 56 == 0);
             Debug.Assert(y >> 56 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] = z0 & M55;
+                z[zOff + 1] = (z0 >> 55) ^ (z1 << 9);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT193Field.cs b/crypto/src/math/ec/custom/sec/SecT193Field.cs
index 59da8b000..795e4fb35 100644
--- a/crypto/src/math/ec/custom/sec/SecT193Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT193Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -279,6 +283,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 49 == 0);
             Debug.Assert(y >> 49 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] ^= z0 & M49;
+                z[zOff + 1] ^= (z0 >> 49) ^ (z1 << 15);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT233Field.cs b/crypto/src/math/ec/custom/sec/SecT233Field.cs
index c16a3d612..08819f5ac 100644
--- a/crypto/src/math/ec/custom/sec/SecT233Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT233Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -290,6 +294,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 59 == 0);
             Debug.Assert(y >> 59 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] ^= z0 & M59;
+                z[zOff + 1] ^= (z0 >> 59) ^ (z1 << 5);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT239Field.cs b/crypto/src/math/ec/custom/sec/SecT239Field.cs
index de87b18a2..d377667ae 100644
--- a/crypto/src/math/ec/custom/sec/SecT239Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT239Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -299,6 +303,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 60 == 0);
             Debug.Assert(y >> 60 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] ^= z0 & M60;
+                z[zOff + 1] ^= (z0 >> 60) ^ (z1 << 4);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT283Field.cs b/crypto/src/math/ec/custom/sec/SecT283Field.cs
index ee5ad89c5..2ee96048f 100644
--- a/crypto/src/math/ec/custom/sec/SecT283Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT283Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -373,6 +377,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 57 == 0);
             Debug.Assert(y >> 57 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] = z0 & M57;
+                z[zOff + 1] = (z0 >> 57) ^ (z1 << 7);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT409Field.cs b/crypto/src/math/ec/custom/sec/SecT409Field.cs
index 0fb7377f6..414a094a8 100644
--- a/crypto/src/math/ec/custom/sec/SecT409Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT409Field.cs
@@ -1,5 +1,9 @@
 using System;
 using System.Diagnostics;
+#if NETCOREAPP3_0_OR_GREATER
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+#endif
 
 using Org.BouncyCastle.Math.Raw;
 
@@ -344,6 +348,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Debug.Assert(x >> 59 == 0);
             Debug.Assert(y >> 59 == 0);
 
+#if NETCOREAPP3_0_OR_GREATER
+            if (Pclmulqdq.IsSupported)
+            {
+                var X = Vector128.CreateScalar(x);
+                var Y = Vector128.CreateScalar(y);
+                var Z = Pclmulqdq.CarrylessMultiply(X, Y, 0x00);
+                ulong z0 = Z.GetElement(0);
+                ulong z1 = Z.GetElement(1);
+                z[zOff    ] ^= z0 & M59;
+                z[zOff + 1] ^= (z0 >> 59) ^ (z1 << 5);
+                return;
+            }
+#endif
+
             //u[0] = 0;
             u[1] = y;
             u[2] = u[1] << 1;
diff --git a/crypto/src/math/ec/custom/sec/SecT571Field.cs b/crypto/src/math/ec/custom/sec/SecT571Field.cs
index 91a3fde9d..5a393409a 100644
--- a/crypto/src/math/ec/custom/sec/SecT571Field.cs
+++ b/crypto/src/math/ec/custom/sec/SecT571Field.cs
@@ -175,6 +175,11 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
 
         public static ulong[] PrecompMultiplicand(ulong[] x)
         {
+#if NETCOREAPP3_0_OR_GREATER
+            ulong[] z = Nat576.Create64();
+            Nat576.Copy64(x, z);
+            return z;
+#else
             /*
              * Precompute table of all 4-bit products of x (first section)
              */
@@ -197,6 +202,7 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             Nat.ShiftUpBits64(len, t, 0, 4, 0UL, t, len);
 
             return t;
+#endif
         }
 
         public static void Reduce(ulong[] xx, ulong[] z)
@@ -367,6 +373,9 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
 
         protected static void ImplMultiplyPrecomp(ulong[] x, ulong[] precomp, ulong[] zz)
         {
+#if NETCOREAPP3_0_OR_GREATER
+            ImplMultiply(x, precomp, zz);
+#else
             uint MASK = 0xF;
 
             /*
@@ -399,6 +408,7 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
                     Nat.ShiftUpBits64(18, zz, 0, 8, 0UL);
                 }
             }
+#endif
         }
 
         protected static void ImplMulwAcc(ulong[] u, ulong x, ulong y, ulong[] z, int zOff)

 

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