40 lines
672 B
Plaintext
40 lines
672 B
Plaintext
template CheckBits(n) {
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signal input in;
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signal bits[n];
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var lc1=0;
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var e2=1;
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for (var i = 0; i<n; i++) {
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bits[i] <-- (in >> i) & 1;
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bits[i] * (bits[i] -1 ) === 0;
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lc1 += bits[i] * e2;
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e2 = e2+e2;
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}
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lc1 === in;
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}
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template Multiplier(n) {
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signal private input a;
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signal private input b;
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signal output c;
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signal inva;
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signal invb;
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component chackA = CheckBits(n);
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component chackB = CheckBits(n);
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chackA.in <== a;
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chackB.in <== b;
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inva <-- 1/(a-1);
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(a-1)*inva === 1;
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invb <-- 1/(b-1);
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(b-1)*invb === 1;
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c <== a*b;
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}
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component main = Multiplier(64);
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