internal static ECPoint ImplSumOfMultiplies(ECPoint[] ps, ECPointMap pointMap, BigInteger[] ks)
{
int length = ps.Length;
int num2 = length << 1;
bool[] negs = new bool[num2];
WNafPreCompInfo[] infos = new WNafPreCompInfo[num2];
byte[][] wnafs = new byte[num2][];
for (int i = 0; i < length; i++)
{
int index = i << 1;
int num5 = index + 1;
BigInteger k = ks[index];
negs[index] = k.SignValue < 0;
k = k.Abs();
BigInteger integer2 = ks[num5];
negs[num5] = integer2.SignValue < 0;
integer2 = integer2.Abs();
int width = Math.Max(2, Math.Min(0x10, WNafUtilities.GetWindowSize(Math.Max(k.BitLength, integer2.BitLength))));
ECPoint p = ps[i];
ECPoint point2 = WNafUtilities.MapPointWithPrecomp(p, width, true, pointMap);
infos[index] = WNafUtilities.GetWNafPreCompInfo(p);
infos[num5] = WNafUtilities.GetWNafPreCompInfo(point2);
wnafs[index] = WNafUtilities.GenerateWindowNaf(width, k);
wnafs[num5] = WNafUtilities.GenerateWindowNaf(width, integer2);
}
return(ImplSumOfMultiplies(negs, infos, wnafs));
}
internal static ECPoint ImplSumOfMultiplies(ECPoint[] ps, ECPointMap pointMap, BigInteger[] ks)
{
int num = ps.Length;
int num2 = num << 1;
bool[] array = new bool[num2];
WNafPreCompInfo[] array2 = new WNafPreCompInfo[num2];
byte[][] array3 = new byte[num2][];
for (int i = 0; i < num; i++)
{
int num3 = i << 1;
int num4 = num3 + 1;
BigInteger bigInteger = ks[num3];
array[num3] = (bigInteger.SignValue < 0);
bigInteger = bigInteger.Abs();
BigInteger bigInteger2 = ks[num4];
array[num4] = (bigInteger2.SignValue < 0);
bigInteger2 = bigInteger2.Abs();
int width = Math.Max(2, Math.Min(16, WNafUtilities.GetWindowSize(Math.Max(bigInteger.BitLength, bigInteger2.BitLength))));
ECPoint p = ps[i];
ECPoint p2 = WNafUtilities.MapPointWithPrecomp(p, width, includeNegated: true, pointMap);
array2[num3] = WNafUtilities.GetWNafPreCompInfo(p);
array2[num4] = WNafUtilities.GetWNafPreCompInfo(p2);
array3[num3] = WNafUtilities.GenerateWindowNaf(width, bigInteger);
array3[num4] = WNafUtilities.GenerateWindowNaf(width, bigInteger2);
}
return(ImplSumOfMultiplies(array, array2, array3));
}
internal static ECPoint ImplShamirsTrickWNaf(ECPoint P, BigInteger k, ECPointMap pointMapQ, BigInteger l)
{
bool flag = k.SignValue < 0;
bool flag2 = l.SignValue < 0;
k = k.Abs();
l = l.Abs();
int width = Math.Max(2, Math.Min(0x10, WNafUtilities.GetWindowSize(Math.Max(k.BitLength, l.BitLength))));
ECPoint p = WNafUtilities.MapPointWithPrecomp(P, width, true, pointMapQ);
WNafPreCompInfo wNafPreCompInfo = WNafUtilities.GetWNafPreCompInfo(P);
WNafPreCompInfo info2 = WNafUtilities.GetWNafPreCompInfo(p);
ECPoint[] preCompP = !flag ? wNafPreCompInfo.PreComp : wNafPreCompInfo.PreCompNeg;
ECPoint[] preCompQ = !flag2 ? info2.PreComp : info2.PreCompNeg;
ECPoint[] preCompNegP = !flag ? wNafPreCompInfo.PreCompNeg : wNafPreCompInfo.PreComp;
ECPoint[] preCompNegQ = !flag2 ? info2.PreCompNeg : info2.PreComp;
byte[] wnafP = WNafUtilities.GenerateWindowNaf(width, k);
byte[] wnafQ = WNafUtilities.GenerateWindowNaf(width, l);
return(ImplShamirsTrickWNaf(preCompP, preCompNegP, wnafP, preCompQ, preCompNegQ, wnafQ));
}
internal static ECPoint ImplShamirsTrickWNaf(ECPoint P, BigInteger k, ECPointMap pointMapQ, BigInteger l)
{
bool negK = k.SignValue < 0, negL = l.SignValue < 0;
k = k.Abs();
l = l.Abs();
int width = System.Math.Max(2, System.Math.Min(16, WNafUtilities.GetWindowSize(System.Math.Max(k.BitLength, l.BitLength))));
ECPoint Q = WNafUtilities.MapPointWithPrecomp(P, width, true, pointMapQ);
WNafPreCompInfo infoP = WNafUtilities.GetWNafPreCompInfo(P);
WNafPreCompInfo infoQ = WNafUtilities.GetWNafPreCompInfo(Q);
ECPoint[] preCompP = negK ? infoP.PreCompNeg : infoP.PreComp;
ECPoint[] preCompQ = negL ? infoQ.PreCompNeg : infoQ.PreComp;
ECPoint[] preCompNegP = negK ? infoP.PreComp : infoP.PreCompNeg;
ECPoint[] preCompNegQ = negL ? infoQ.PreComp : infoQ.PreCompNeg;
byte[] wnafP = WNafUtilities.GenerateWindowNaf(width, k);
byte[] wnafQ = WNafUtilities.GenerateWindowNaf(width, l);
return(ImplShamirsTrickWNaf(preCompP, preCompNegP, wnafP, preCompQ, preCompNegQ, wnafQ));
}