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plus.cpp
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plus.cpp
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#include "file_utils.hpp"
int main(int argc,char **argv)
{
int st;
Big a, b, p, xOne, yOne, xTwo, yTwo;
ECn ptOne, ptTwo;
/// Confirm arguments
if ( argc != 5 )
{
return -1;
}
xOne = Big(argv[1]);
yOne = Big(argv[2]);
xTwo = Big(argv[3]);
yTwo = Big(argv[4]);
st = readCurveConfig(&a, &b, &p);
if ( 0 != st )
{
return st;
}
ECCCurve e(a, b, p);
e.getCurve();
/// First point
ptOne = ECn(xOne, yOne);
ptOne.get(xOne, yOne);
cout << "First point: x= " << xOne << ", y= " << yOne << "\n";
if ( ( xOne == 0 ) && ( yOne == 0 ) )
{
cout << "Not a point on curve\n";
return -1;
}
/// Second point
ptTwo = ECn(xTwo, yTwo);
ptTwo.get(xTwo, yTwo);
cout << "Second point: x= " << xTwo << ", y= " << yTwo << "\n";
if ( ( xTwo == 0 ) && ( yTwo == 0 ) )
{
cout << "Not a point on curve\n";
return -1;
}
ptOne += ptTwo;
ptOne.get(xOne, yOne);
cout << "Result: x= " << xOne << ", y= " << yOne << "\n";
return 0;
}