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67 lines
1.6 KiB
67 lines
1.6 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 "../mimc.circom";
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/*
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Hash1 = H(1 | key | value)
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*/
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template SMTHash1() {
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signal input key;
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signal input value;
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signal output out;
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component h1 = MiMC7(91); // Constant
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h1.x_in <== 15021630795539610737508582392395901278341266317943626182700664337106830745361;
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h1.k <== 1;
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component h2 = MiMC7(91);
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h2.x_in <== h1.out;
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h2.k <== key;
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component h3 = MiMC7(91);
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h3.x_in <== h2.out;
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h3.k <== value;
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out <== h3.out;
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}
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/*
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This component is used to create the 2 nodes.
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Hash2 = H(Hl | Hr)
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*/
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template SMTHash2() {
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signal input L;
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signal input R;
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signal output out;
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component h1 = MiMC7(91);
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h1.x_in <== 15021630795539610737508582392395901278341266317943626182700664337106830745361;
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h1.k <== L;
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component h2 = MiMC7(91);
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h2.x_in <== h1.out;
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h2.k <== R;
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out <== h2.out;
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}
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