112 lines
2.7 KiB
C#
112 lines
2.7 KiB
C#
#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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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Utilities;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Math.Raw
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{
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internal abstract class Nat320
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{
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public static void Copy64(ulong[] x, ulong[] z)
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{
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z[0] = x[0];
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z[1] = x[1];
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z[2] = x[2];
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z[3] = x[3];
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z[4] = x[4];
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}
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public static void Copy64(ulong[] x, int xOff, ulong[] z, int zOff)
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{
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z[zOff + 0] = x[xOff + 0];
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z[zOff + 1] = x[xOff + 1];
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z[zOff + 2] = x[xOff + 2];
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z[zOff + 3] = x[xOff + 3];
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z[zOff + 4] = x[xOff + 4];
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}
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public static ulong[] Create64()
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{
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return new ulong[5];
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}
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public static ulong[] CreateExt64()
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{
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return new ulong[10];
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}
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public static bool Eq64(ulong[] x, ulong[] y)
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{
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for (int i = 4; i >= 0; --i)
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{
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if (x[i] != y[i])
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{
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return false;
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}
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}
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return true;
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}
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public static ulong[] FromBigInteger64(BigInteger x)
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{
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if (x.SignValue < 0 || x.BitLength > 320)
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throw new ArgumentException();
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ulong[] z = Create64();
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int i = 0;
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while (x.SignValue != 0)
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{
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z[i++] = (ulong)x.LongValue;
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x = x.ShiftRight(64);
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}
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return z;
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}
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public static bool IsOne64(ulong[] x)
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{
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if (x[0] != 1UL)
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{
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return false;
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}
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for (int i = 1; i < 5; ++i)
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{
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if (x[i] != 0UL)
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{
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return false;
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}
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}
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return true;
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}
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public static bool IsZero64(ulong[] x)
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{
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for (int i = 0; i < 5; ++i)
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{
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if (x[i] != 0UL)
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{
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return false;
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}
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}
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return true;
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}
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public static BigInteger ToBigInteger64(ulong[] x)
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{
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byte[] bs = new byte[40];
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for (int i = 0; i < 5; ++i)
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{
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ulong x_i = x[i];
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if (x_i != 0L)
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{
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Pack.UInt64_To_BE(x_i, bs, (4 - i) << 3);
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}
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}
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return new BigInteger(1, bs);
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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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