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| author | Peter Dettman <peter.dettman@bouncycastle.org> | 2022-07-18 14:04:40 +0700 |
|---|---|---|
| committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2022-07-18 14:04:40 +0700 |
| commit | 2a27035daa92bb2fc1c89914481db58e9336d35e (patch) | |
| tree | 84737dbc459344c32878722e1787fe097e766f62 /crypto/src/math/ec/custom/sec/SecT233Field.cs | |
| parent | LongArray cleanup and refactoring (diff) | |
| download | BouncyCastle.NET-ed25519-2a27035daa92bb2fc1c89914481db58e9336d35e.tar.xz | |
Factor out Unshuffle methods
Diffstat (limited to 'crypto/src/math/ec/custom/sec/SecT233Field.cs')
| -rw-r--r-- | crypto/src/math/ec/custom/sec/SecT233Field.cs | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecT233Field.cs b/crypto/src/math/ec/custom/sec/SecT233Field.cs index 1ebac2eac..c16a3d612 100644 --- a/crypto/src/math/ec/custom/sec/SecT233Field.cs +++ b/crypto/src/math/ec/custom/sec/SecT233Field.cs @@ -151,14 +151,8 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec public static void Sqrt(ulong[] x, ulong[] z) { - ulong u0, u1; - u0 = Interleave.Unshuffle(x[0]); u1 = Interleave.Unshuffle(x[1]); - ulong e0 = (u0 & 0x00000000FFFFFFFFUL) | (u1 << 32); - ulong c0 = (u0 >> 32) | (u1 & 0xFFFFFFFF00000000UL); - - u0 = Interleave.Unshuffle(x[2]); u1 = Interleave.Unshuffle(x[3]); - ulong e1 = (u0 & 0x00000000FFFFFFFFUL) | (u1 << 32); - ulong c1 = (u0 >> 32) | (u1 & 0xFFFFFFFF00000000UL); + ulong c0 = Interleave.Unshuffle(x[0], x[1], out ulong e0); + ulong c1 = Interleave.Unshuffle(x[2], x[3], out ulong e1); ulong c2; c2 = (c1 >> 27); |