/* Copyright 2018 0KIMS association. This file is part of circom (Zero Knowledge Circuit Compiler). circom is a free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. circom is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with circom. If not, see . */ pragma circom 2.0.0; template XOR() { signal input a; signal input b; signal output out; out <== a + b - 2*a*b; } template AND() { signal input a; signal input b; signal output out; out <== a*b; } template OR() { signal input a; signal input b; signal output out; out <== a + b - a*b; } template NOT() { signal input in; signal output out; out <== 1 + in - 2*in; } template NAND() { signal input a; signal input b; signal output out; out <== 1 - a*b; } template NOR() { signal input a; signal input b; signal output out; out <== a*b + 1 - a - b; } template MultiAND(n) { signal input in[n]; signal output out; component and1; component and2; component ands[2]; if (n==1) { out <== in[0]; } else if (n==2) { and1 = AND(); and1.a <== in[0]; and1.b <== in[1]; out <== and1.out; } else { and2 = AND(); var n1 = n\2; var n2 = n-n\2; ands[0] = MultiAND(n1); ands[1] = MultiAND(n2); var i; for (i=0; i