Browse Source

Substractor

feature/synctests2
Jordi Baylina 5 years ago
parent
commit
9cab539698
No known key found for this signature in database GPG Key ID: 7480C80C1BE43112
31 changed files with 651 additions and 0 deletions
  1. +18
    -0
      circuits/aliascheck.circom
  2. +17
    -0
      circuits/babyjub.circom
  3. +71
    -0
      circuits/binsub.circom
  4. +19
    -0
      circuits/comparators.circom
  5. +18
    -0
      circuits/compconstant.circom
  6. +19
    -0
      circuits/eddsa.circom
  7. +19
    -0
      circuits/escalarmul.circom
  8. +18
    -0
      circuits/escalarmulany.circom
  9. +19
    -0
      circuits/escalarmulfix.circom
  10. +19
    -0
      circuits/escalarmulw4table.circom
  11. +15
    -0
      circuits/mimc.circom
  12. +18
    -0
      circuits/montgomery.circom
  13. +19
    -0
      circuits/multiplexer.circom
  14. +19
    -0
      circuits/mux3.circom
  15. +15
    -0
      circuits/mux4.circom
  16. +19
    -0
      circuits/pedersen.circom
  17. +18
    -0
      circuits/pedersen_old.circom
  18. +19
    -0
      circuits/pointbits.circom
  19. +19
    -0
      circuits/sign.circom
  20. +19
    -0
      circuits/smt/smthash.circom
  21. +19
    -0
      circuits/smt/smtlevins.circom
  22. +19
    -0
      circuits/smt/smtprocessor.circom
  23. +19
    -0
      circuits/smt/smtprocessorlevel.circom
  24. +19
    -0
      circuits/smt/smtprocessorsm.circom
  25. +19
    -0
      circuits/smt/smtverifier.circom
  26. +19
    -0
      circuits/smt/smtverifierlevel.circom
  27. +19
    -0
      circuits/smt/smtverifiersm.circom
  28. +19
    -0
      circuits/switcher.circom
  29. +56
    -0
      test/binsub.js
  30. +0
    -0
      test/binsum.js
  31. +26
    -0
      test/circuits/binsub_test.circom

+ 18
- 0
circuits/aliascheck.circom

@ -1,3 +1,21 @@
/*
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 "compconstant.circom";

+ 17
- 0
circuits/babyjub.circom

@ -1,4 +1,21 @@
/*
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/>.
*/
template BabyAdd() {
signal input x1;

+ 71
- 0
circuits/binsub.circom

@ -0,0 +1,71 @@
/*
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/>.
*/
/*
This component creates a binary substraction.
Main Constraint:
(in[0][0] * 2^0 + in[0][1] * 2^1 + ..... + in[0][n-1] * 2^(n-1)) +
+ 2^n
- (in[1][0] * 2^0 + in[1][1] * 2^1 + ..... + in[1][n-1] * 2^(n-1))
===
out[0] * 2^0 + out[1] * 2^1 + + out[n-1] *2^(n-1) + aux
out[0] * (out[0] - 1) === 0
out[1] * (out[0] - 1) === 0
.
.
.
out[n-1] * (out[n-1] - 1) === 0
aux * (aux-1) == 0
*/
template BinSub(n) {
signal input in[2][n];
signal output out[n];
signal aux;
var lin = 2**n;
var lout = 0;
for (var i=0; i<n; i++) {
lin = lin + in[0][i]*(2**i);
lin = lin - in[1][i]*(2**i);
}
for (var i=0; i<n; i++) {
out[i] <-- (lin >> i) & 1;
// Ensure out is binary
out[i] * (out[i] - 1) === 0;
lout = lout + out[i]*(2**i);
}
aux <-- (lin >> n) & 1;
aux*(aux-1) === 0;
lout = lout + aux*(2**n);
// Ensure the sum;
lin === lout;
}

+ 19
- 0
circuits/comparators.circom

@ -1,3 +1,22 @@
/*
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 "bitify.circom";
include "binsum.circom";

+ 18
- 0
circuits/compconstant.circom

@ -1,3 +1,21 @@
/*
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 "bitify.circom";

+ 19
- 0
circuits/eddsa.circom

@ -1,3 +1,22 @@
/*
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 "compconstant.circom";
include "pointbits.circom";
include "pedersen.circom";

+ 19
- 0
circuits/escalarmul.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/*
┏━━━━━━━━━━━┓

+ 18
- 0
circuits/escalarmulany.circom

@ -1,3 +1,21 @@
/*
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 "montgomery.circom";
include "babyjub.circom";

+ 19
- 0
circuits/escalarmulfix.circom

@ -1,3 +1,22 @@
/*
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 "mux3.circom";
include "montgomery.circom";
include "babyjub.circom";

+ 19
- 0
circuits/escalarmulw4table.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
function pointAdd(x1,y1,x2,y2) {
var a = 168700;
var d = 168696;

+ 15
- 0
circuits/mimc.circom

@ -1,6 +1,21 @@
/*
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/>.
*/
template MiMC7(nrounds) {
signal input x_in;

+ 18
- 0
circuits/montgomery.circom

@ -1,3 +1,21 @@
/*
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/>.
*/
/*
Source: https://en.wikipedia.org/wiki/Montgomery_curve

+ 19
- 0
circuits/multiplexer.circom

@ -17,6 +17,25 @@
along with circom. If not, see <https://www.gnu.org/licenses/>.
*/
/*
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/>.
*/
// --> Assignation without constraint
// <-- Assignation without constraint
// === Constraint

+ 19
- 0
circuits/mux3.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
template MultiMux3(n) {
signal input c[n][8]; // Constants
signal input s[3]; // Selector

+ 15
- 0
circuits/mux4.circom

@ -1,6 +1,21 @@
/*
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/>.
*/
template MultiMux4(n) {
signal input c[n][16]; // Constants

+ 19
- 0
circuits/pedersen.circom

@ -1,3 +1,22 @@
/*
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 "montgomery.circom";
include "mux3.circom";
include "babyjub.circom";

+ 18
- 0
circuits/pedersen_old.circom

@ -1,3 +1,21 @@
/*
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 "escalarmul.circom";

+ 19
- 0
circuits/pointbits.circom

@ -1,3 +1,22 @@
/*
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 "bitify.circom";
include "aliascheck.circom";
include "compconstant.circom";

+ 19
- 0
circuits/sign.circom

@ -1,3 +1,22 @@
/*
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 "compconstant.circom";
template Sign() {

+ 19
- 0
circuits/smt/smthash.circom

@ -1,3 +1,22 @@
/*
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 "../mimc.circom";

+ 19
- 0
circuits/smt/smtlevins.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/*
This component finds the level where the oldInsert is done.

+ 19
- 0
circuits/smt/smtprocessor.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/***************************************************************************************************
SMTProcessor: Sparse Merkle Tree processor is a component to verify an insert/update/delete elements

+ 19
- 0
circuits/smt/smtprocessorlevel.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/******
SMTProcessorLevel

+ 19
- 0
circuits/smt/smtprocessorsm.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/***************************************************************************************************
Each level on a SMTProcessor has a state.

+ 19
- 0
circuits/smt/smtverifier.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/*
SMTVerifier is a component to verify inclusion/exclusion of an element in the tree

+ 19
- 0
circuits/smt/smtverifierlevel.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/******
SMTVerifierLevel

+ 19
- 0
circuits/smt/smtverifiersm.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/*
Each level in the SMTVerifier has a state.

+ 19
- 0
circuits/switcher.circom

@ -1,3 +1,22 @@
/*
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/>.
*/
/*
Assume sel is binary.

+ 56
- 0
test/binsub.js

@ -0,0 +1,56 @@
const chai = require("chai");
const path = require("path");
const snarkjs = require("snarkjs");
const compiler = require("circom");
const assert = chai.assert;
const bigInt = snarkjs.bigInt;
function print(circuit, w, s) {
console.log(s + ": " + w[circuit.getSignalIdx(s)]);
}
function checkSub(_a,_b, circuit) {
let a=bigInt(_a);
let b=bigInt(_b);
if (a.lesser(bigInt.zero)) a = a.add(bigInt.one.shl(16));
if (b.lesser(bigInt.zero)) b = b.add(bigInt.one.shl(16));
const w = circuit.calculateWitness({a: a, b: b});
let res = a.sub(b);
if (res.lesser(bigInt.zero)) res = res.add(bigInt.one.shl(16));
assert( w[circuit.getSignalIdx("main.out")].equals(bigInt(res)) );
}
describe("BinSub test", () => {
let circuit;
before( async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "binsub_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains BinSub: " + circuit.nConstraints);
});
it("Should check variuos ege cases", async () => {
checkSub(0,0, circuit);
checkSub(1,0, circuit);
checkSub(-1,0, circuit);
checkSub(2,1, circuit);
checkSub(2,2, circuit);
checkSub(2,3, circuit);
checkSub(2,-1, circuit);
checkSub(2,-2, circuit);
checkSub(2,-3, circuit);
checkSub(-2,-3, circuit);
checkSub(-2,-2, circuit);
checkSub(-2,-1, circuit);
checkSub(-2,0, circuit);
checkSub(-2,1, circuit);
checkSub(-2,2, circuit);
checkSub(-2,3, circuit);
});
});

test/sum.js → test/binsum.js


+ 26
- 0
test/circuits/binsub_test.circom

@ -0,0 +1,26 @@
include "../../circuits/bitify.circom"
include "../../circuits/binsub.circom"
template A() {
signal private input a;
signal input b;
signal output out;
component n2ba = Num2Bits(16);
component n2bb = Num2Bits(16);
component sub = BinSub(16);
component b2n = Bits2Num(16);
n2ba.in <== a;
n2bb.in <== b;
for (var i=0; i<16; i++) {
sub.in[0][i] <== n2ba.out[i];
sub.in[1][i] <== n2bb.out[i];
b2n.in[i] <== sub.out[i];
}
out <== b2n.out;
}
component main = A();

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