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| author | Peter Dettman <peter.dettman@bouncycastle.org> | 2023-08-22 14:04:00 +0700 |
|---|---|---|
| committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2023-08-22 14:04:00 +0700 |
| commit | 7323036a06f7bdda86512364976ac64c407d7157 (patch) | |
| tree | 1399963d1c38e7362e5ca06838a1f90a4e8036aa /crypto | |
| parent | Microsoft.NET.Test.Sdk 17.7.1 (diff) | |
| download | BouncyCastle.NET-ed25519-7323036a06f7bdda86512364976ac64c407d7157.tar.xz | |
Comment an alternative unoptimized impl for ScalarMultBase
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/src/math/ec/rfc7748/X25519.cs | 12 | ||||
| -rw-r--r-- | crypto/src/math/ec/rfc7748/X448.cs | 12 |
2 files changed, 24 insertions, 0 deletions
diff --git a/crypto/src/math/ec/rfc7748/X25519.cs b/crypto/src/math/ec/rfc7748/X25519.cs index ffddd4376..0b2be4af0 100644 --- a/crypto/src/math/ec/rfc7748/X25519.cs +++ b/crypto/src/math/ec/rfc7748/X25519.cs @@ -269,6 +269,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc7748 #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER ScalarMultBase(k.AsSpan(kOff), r.AsSpan(rOff)); #else + // Equivalent (but much slower) + //byte[] u = new byte[PointSize]; + //u[0] = 9; + + //ScalarMult(k, kOff, u, 0, r, rOff); + int[] y = F.Create(); int[] z = F.Create(); @@ -287,6 +293,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc7748 #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER public static void ScalarMultBase(ReadOnlySpan<byte> k, Span<byte> r) { + // Equivalent (but much slower) + //Span<byte> u = stackalloc byte[PointSize]; + //u[0] = 9; + + //ScalarMult(k, u, r); + int[] y = F.Create(); int[] z = F.Create(); diff --git a/crypto/src/math/ec/rfc7748/X448.cs b/crypto/src/math/ec/rfc7748/X448.cs index 7e078c5c6..0019f53fc 100644 --- a/crypto/src/math/ec/rfc7748/X448.cs +++ b/crypto/src/math/ec/rfc7748/X448.cs @@ -282,6 +282,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc7748 #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER ScalarMultBase(k.AsSpan(kOff), r.AsSpan(rOff)); #else + // Equivalent (but much slower) + //byte[] u = new byte[PointSize]; + //u[0] = 5; + + //ScalarMult(k, kOff, u, 0, r, rOff); + uint[] x = F.Create(); uint[] y = F.Create(); @@ -299,6 +305,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc7748 #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER public static void ScalarMultBase(ReadOnlySpan<byte> k, Span<byte> r) { + // Equivalent (but much slower) + //Span<byte> u = stackalloc byte[PointSize]; + //u[0] = 5; + + //ScalarMult(k, u, r); + uint[] x = F.Create(); uint[] y = F.Create(); |