31 lines
619 B
Plaintext
31 lines
619 B
Plaintext
function pointAdd(x1,y1,x2,y2) {
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var a = 168700;
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var d = 168696;
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var res[2];
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res[0] = (x1*y2 + y1*x2) / (1 + d*x1*x2*y1*y2);
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res[1] = (y1*y2 - a*x1*x2) / (1 - d*x1*x2*y1*y2);
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return res;
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}
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template EscalarMulW4Table(base, k) {
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signal output out[16][2];
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var i;
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var p[2];
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var dbl = base;
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for (i=0; i<k*4; i++) {
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dbl = pointAdd(dbl[0], dbl[1], dbl[0], dbl[1]);
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}
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out[0][0] <== 0;
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out[0][1] <== 1;
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for (i=1; i<16; i++) {
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p = pointAdd(out[i-1][0], out[i-1][1], dbl[0], dbl[1]);
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out[i][0] <== p[0];
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out[i][1] <== p[1];
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}
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}
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