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bitcoin-bitcoin-core/secp256k1.cpp

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#include <stdio.h>
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#include "num.h"
#include "field.h"
#include "group.h"
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#include "scalar.h"
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#include "ecmult.h"
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using namespace secp256k1;
int main() {
Context ctx;
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FieldElem x,y;
x.SetHex("8b30bbe9ae2a990696b22f670709dff3727fd8bc04d3362c6c7bf458e2846004");
y.SetHex("a357ae915c4a65281309edf20504740f0eb3343990216b4f81063cb65f2f7e0f");
GroupElemJac a(x,y);
printf("a=%s\n", a.ToString().c_str());
Scalar an(ctx);
an.SetHex("8b30bce9ad2a890696b23f671709eff3727fd8cc04d3362c6c7bf458f2846fff");
Scalar af(ctx);
af.SetHex("1337");
printf("an=%s\n", an.ToString().c_str());
Scalar gn(ctx);
gn.SetHex("f557be925d4b65381409fdf30514750f1eb4343a91216a4f71163cb35f2f6e0e");
Scalar gf(ctx);
gf.SetHex("2113");
printf("gn=%s\n", gn.ToString().c_str());
for (int i=0; i<50000; i++) {
ECMult(ctx, a, a, an, gn);
an.Multiply(ctx, af);
gn.Multiply(ctx, gf);
}
printf("%s\n", a.ToString().c_str());
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return 0;
}