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| author | Peter Dettman <peter.dettman@bouncycastle.org> | 2022-12-01 02:54:47 +0700 |
|---|---|---|
| committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2022-12-01 02:54:47 +0700 |
| commit | d31dec5d2f967711f65baf3be50db1349d1b7d91 (patch) | |
| tree | 249a53ccc4860e6152d2cf1ceb22df151e75d0fd /crypto/src/math/ec/custom/sec/SecT163Field.cs | |
| parent | sect233k1 perf. opts. (diff) | |
| download | BouncyCastle.NET-ed25519-d31dec5d2f967711f65baf3be50db1349d1b7d91.tar.xz | |
Binary curve perf. opts.
Diffstat (limited to 'crypto/src/math/ec/custom/sec/SecT163Field.cs')
| -rw-r--r-- | crypto/src/math/ec/custom/sec/SecT163Field.cs | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecT163Field.cs b/crypto/src/math/ec/custom/sec/SecT163Field.cs index 0c616600a..1ba747681 100644 --- a/crypto/src/math/ec/custom/sec/SecT163Field.cs +++ b/crypto/src/math/ec/custom/sec/SecT163Field.cs @@ -40,7 +40,7 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec z[2] = x[2]; } - private static void AddTo(ulong[] x, ulong[] z) + public static void AddTo(ulong[] x, ulong[] z) { z[0] ^= x[0]; z[1] ^= x[1]; @@ -175,6 +175,11 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec AddExt(zz, tt, zz); } + public static void SquareExt(ulong[] x, ulong[] zz) + { + ImplSquare(x, zz); + } + public static void SquareN(ulong[] x, int n, ulong[] z) { Debug.Assert(n > 0); @@ -375,6 +380,19 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec protected static void ImplSquare(ulong[] x, ulong[] zz) { +#if NETCOREAPP3_0_OR_GREATER + if (Bmi2.X64.IsSupported) + { + zz[5] = Bmi2.X64.ParallelBitDeposit(x[2] >> 32, 0x5555555555555555UL); + zz[4] = Bmi2.X64.ParallelBitDeposit(x[2] , 0x5555555555555555UL); + zz[3] = Bmi2.X64.ParallelBitDeposit(x[1] >> 32, 0x5555555555555555UL); + zz[2] = Bmi2.X64.ParallelBitDeposit(x[1] , 0x5555555555555555UL); + zz[1] = Bmi2.X64.ParallelBitDeposit(x[0] >> 32, 0x5555555555555555UL); + zz[0] = Bmi2.X64.ParallelBitDeposit(x[0] , 0x5555555555555555UL); + return; + } +#endif + Interleave.Expand64To128(x, 0, 3, zz, 0); } } |