circomlib/circuits/sha256/t2.circom
2018-12-06 17:32:49 +01:00

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/*
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/>.
*/
include "../binsum.circom";
include "sigma.circom";
include "maj.circom"
template T2() {
signal input a[32];
signal input b[32];
signal input c[32];
signal output out[32];
component sum = BinSum(32, 2);
component bigsigma0 = BigSigma(2, 13, 22);
component maj = Maj(32);
for (var k=0; k<32; k++) {
bigsigma0.in[k] <== a[k];
maj.a[k] <== a[k];
maj.b[k] <== b[k];
maj.c[k] <== c[k];
sum.in[0][k] <== bigsigma0.out[k];
sum.in[1][k] <== maj.out[k];
out[k] <== sum.out[k];
}
}