diff options
Diffstat (limited to 'crypto/src/math/ec/custom/sec/SecT233Field.cs')
| -rw-r--r-- | crypto/src/math/ec/custom/sec/SecT233Field.cs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecT233Field.cs b/crypto/src/math/ec/custom/sec/SecT233Field.cs index f2519b369..70cd92215 100644 --- a/crypto/src/math/ec/custom/sec/SecT233Field.cs +++ b/crypto/src/math/ec/custom/sec/SecT233Field.cs @@ -392,6 +392,21 @@ 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[7] = Bmi2.X64.ParallelBitDeposit(x[3] >> 32, 0x5555555555555555UL); + zz[6] = Bmi2.X64.ParallelBitDeposit(x[3], 0x5555555555555555UL); + 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, 4, zz, 0); } } |