75 lines
2.1 KiB
Plaintext
75 lines
2.1 KiB
Plaintext
/*
|
|
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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
template MultiMux3(n) {
|
|
signal input c[n][8]; // Constants
|
|
signal input s[3]; // Selector
|
|
signal output out[n];
|
|
|
|
signal a210[n];
|
|
signal a21[n];
|
|
signal a20[n];
|
|
signal a2[n];
|
|
|
|
signal a10[n];
|
|
signal a1[n];
|
|
signal a0[n];
|
|
signal a[n];
|
|
|
|
// 4 constrains for the intermediary variables
|
|
signal s10;
|
|
s10 <== s[1] * s[0];
|
|
|
|
for (var i=0; i<n; i++) {
|
|
|
|
a210[i] <== ( c[i][ 7]-c[i][ 6]-c[i][ 5]+c[i][ 4] - c[i][ 3]+c[i][ 2]+c[i][ 1]-c[i][ 0] ) * s10;
|
|
a21[i] <== ( c[i][ 6]-c[i][ 4]-c[i][ 2]+c[i][ 0] ) * s[1];
|
|
a20[i] <== ( c[i][ 5]-c[i][ 4]-c[i][ 1]+c[i][ 0] ) * s[0];
|
|
a2[i] <== ( c[i][ 4]-c[i][ 0] );
|
|
|
|
a10[i] <== ( c[i][ 3]-c[i][ 2]-c[i][ 1]+c[i][ 0] ) * s10;
|
|
a1[i] <== ( c[i][ 2]-c[i][ 0] ) * s[1];
|
|
a0[i] <== ( c[i][ 1]-c[i][ 0] ) * s[0];
|
|
a[i] <== ( c[i][ 0] )
|
|
|
|
out[i] <== ( a210[i] + a21[i] + a20[i] + a2[i] ) * s[2] +
|
|
( a10[i] + a1[i] + a0[i] + a[i] );
|
|
|
|
}
|
|
}
|
|
|
|
template Mux3() {
|
|
var i;
|
|
signal input c[8]; // Constants
|
|
signal input s[3]; // Selector
|
|
signal output out;
|
|
|
|
component mux = MultiMux3(1);
|
|
|
|
for (i=0; i<8; i++) {
|
|
mux.c[0][i] <== c[i];
|
|
}
|
|
|
|
for (i=0; i<3; i++) {
|
|
s[i] ==> mux.s[i];
|
|
}
|
|
|
|
mux.out[0] ==> out;
|
|
}
|