30 lines
797 B
C#
30 lines
797 B
C#
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#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier
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{
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public class MontgomeryLadderMultiplier
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: AbstractECMultiplier
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{
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/**
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* Montgomery ladder.
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*/
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protected override ECPoint MultiplyPositive(ECPoint p, BigInteger k)
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{
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ECPoint[] R = new ECPoint[]{ p.Curve.Infinity, p };
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int n = k.BitLength;
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int i = n;
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while (--i >= 0)
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{
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int b = k.TestBit(i) ? 1 : 0;
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int bp = 1 - b;
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R[bp] = R[bp].Add(R[b]);
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R[b] = R[b].Twice();
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}
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return R[0];
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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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