circomlib/circuits/sha256/t2.circom
circuits/sha256/t2.circomRaw
1/*
2 Copyright 2018 0KIMS association.
3
4 This file is part of circom (Zero Knowledge Circuit Compiler).
5
6 circom is a free software: you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10
11 circom is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14 License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with circom. If not, see <https://www.gnu.org/licenses/>.
18*/
19
20include "../binsum.circom";
21include "sigma.circom";
22include "maj.circom"
23
24template T2() {
25 signal input a[32];
26 signal input b[32];
27 signal input c[32];
28 signal output out[32];
29
30 component sum = BinSum(32, 2);
31
32 component bigsigma0 = BigSigma(2, 13, 22);
33 component maj = Maj(32);
34
35 for (var k=0; k<32; k++) {
36
37 bigsigma0.in[k] <== a[k];
38 maj.a[k] <== a[k];
39 maj.b[k] <== b[k];
40 maj.c[k] <== c[k];
41
42 sum.in[0][k] <== bigsigma0.out[k];
43 sum.in[1][k] <== maj.out[k];
44
45 out[k] <== sum.out[k];
46 }
47}