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68 lines
1.8 KiB
68 lines
1.8 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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include "xor3.circom";
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include "rotate.circom";
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include "shift.circom";
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template SmallSigma(ra, rb, rc) {
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signal input in[32];
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signal output out[32];
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component xor3 = Xor3(32);
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component rota = RotR(32, ra);
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component rotb = RotR(32, rb);
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component shrc = ShR(32, rc);
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for (var k=0; k<32; k++) {
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rota.in[k] <== in[k];
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rotb.in[k] <== in[k];
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shrc.in[k] <== in[k];
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xor3.a[k] <== rota.out[k];
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xor3.b[k] <== rotb.out[k];
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xor3.c[k] <== shrc.out[k];
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out[k] <== xor3.out[k];
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}
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}
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template BigSigma(ra, rb, rc) {
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signal input in[32];
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signal output out[32];
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component xor3 = Xor3(32);
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component rota = RotR(32, ra);
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component rotb = RotR(32, rb);
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component rotc = RotR(32, rc);
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for (var k=0; k<32; k++) {
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rota.in[k] <== in[k];
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rotb.in[k] <== in[k];
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rotc.in[k] <== in[k];
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xor3.a[k] <== rota.out[k];
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xor3.b[k] <== rotb.out[k];
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xor3.c[k] <== rotc.out[k];
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out[k] <== xor3.out[k];
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}
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}
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