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51 lines
1.5 KiB
51 lines
1.5 KiB
1 year ago
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#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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using System.Diagnostics;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Math.Raw
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{
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internal abstract class Nat512
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{
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public static void Mul(uint[] x, uint[] y, uint[] zz)
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{
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Nat256.Mul(x, y, zz);
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Nat256.Mul(x, 8, y, 8, zz, 16);
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uint c24 = Nat256.AddToEachOther(zz, 8, zz, 16);
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uint c16 = c24 + Nat256.AddTo(zz, 0, zz, 8, 0);
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c24 += Nat256.AddTo(zz, 24, zz, 16, c16);
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uint[] dx = Nat256.Create(), dy = Nat256.Create();
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bool neg = Nat256.Diff(x, 8, x, 0, dx, 0) != Nat256.Diff(y, 8, y, 0, dy, 0);
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uint[] tt = Nat256.CreateExt();
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Nat256.Mul(dx, dy, tt);
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c24 += neg ? Nat.AddTo(16, tt, 0, zz, 8) : (uint)Nat.SubFrom(16, tt, 0, zz, 8);
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Nat.AddWordAt(32, c24, zz, 24);
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}
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public static void Square(uint[] x, uint[] zz)
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{
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Nat256.Square(x, zz);
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Nat256.Square(x, 8, zz, 16);
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uint c24 = Nat256.AddToEachOther(zz, 8, zz, 16);
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uint c16 = c24 + Nat256.AddTo(zz, 0, zz, 8, 0);
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c24 += Nat256.AddTo(zz, 24, zz, 16, c16);
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uint[] dx = Nat256.Create();
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Nat256.Diff(x, 8, x, 0, dx, 0);
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uint[] m = Nat256.CreateExt();
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Nat256.Square(dx, m);
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c24 += (uint)Nat.SubFrom(16, m, 0, zz, 8);
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Nat.AddWordAt(32, c24, zz, 24);
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}
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}
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}
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#pragma warning restore
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#endif
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