36 lines
971 B
C#
36 lines
971 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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/**
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* Class implementing the NAF (Non-Adjacent Form) multiplication algorithm (right-to-left).
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*/
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public class NafR2LMultiplier
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: AbstractECMultiplier
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{
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protected override ECPoint MultiplyPositive(ECPoint p, BigInteger k)
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{
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int[] naf = WNafUtilities.GenerateCompactNaf(k);
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ECPoint R0 = p.Curve.Infinity, R1 = p;
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int zeroes = 0;
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for (int i = 0; i < naf.Length; ++i)
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{
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int ni = naf[i];
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int digit = ni >> 16;
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zeroes += ni & 0xFFFF;
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R1 = R1.TimesPow2(zeroes);
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R0 = R0.Add(digit < 0 ? R1.Negate() : R1);
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zeroes = 1;
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}
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return R0;
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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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