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46 lines
1.0 KiB
46 lines
1.0 KiB
/*
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Copyright 2018 0KIMS association.
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This file is part of circom (Zero Knowledge Circuit Compiler).
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circom is a free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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circom is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with circom. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* Ch
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000 0
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001 1
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010 0
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011 1
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100 0
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101 0
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110 1
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111 1
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out = a&b ^ (!a)&c =>
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out = a*(b-c) + c
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*/
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template Ch(n) {
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signal input a[n];
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signal input b[n];
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signal input c[n];
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signal output out[n];
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for (var k=0; k<n; k++) {
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out[k] <== a[k] * (b[k]-c[k]) + c[k];
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}
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}
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