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Withdraw circuit check secret in MerkleTree Root

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arnaucube
2020-05-11 09:08:23 +02:00
parent e466578ddc
commit 95d4f210be
2 changed files with 60 additions and 28 deletions
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56
circuits/withdraw.circom
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@@ -3,49 +3,61 @@
WARNING: WIP, very initial version of the miksi circuit
+--------+
PUB_coinCode+------->+ |
| | +----+
PUB_amount+--------->+Poseidon+------->+ == +<-----+PUB_commitment
| | +----+
PRI_secret+--------->+ |
+--------+
+----+
PUB_address+--->+ != +<---+0
+----+
+----------+
| |
PUB_nullifier+------>+----------+ | |
PUB_coinCode+------->+ | | SMT +<------+PRI_siblings
| | | Poseidon |
PUB_amount+--------->+ Poseidon +------------->+ Verifier |
| | | +<------+PUB_root
PRI_secret+--------->+ | | | +
+----------+ +----------+ |
|
+----+ +----+ |
PUB_address+--->+ != +<-------+0+------>+ != +<-------+
+----+ +----+
*/
include "../node_modules/circomlib/circuits/babyjub.circom";
include "../node_modules/circomlib/circuits/comparators.circom";
include "../node_modules/circomlib/circuits/poseidon.circom";
include "../node_modules/circomlib/circuits/bitify.circom";
include "../node_modules/circomlib/circuits/smt/smtverifier.circom";
include "../node_modules/circomlib/circuits/smt/smtprocessor.circom";
template Withdraw() {
template Withdraw(nLevels) {
signal input coinCode;
signal input amount;
signal input commitment;
signal private input secret;
signal input nullifier;
signal private input siblings[nLevels];
signal input root;
signal input address;
component hash = Poseidon(3, 6, 8, 57);
component hash = Poseidon(4, 6, 8, 57);
hash.inputs[0] <== coinCode;
hash.inputs[1] <== amount;
hash.inputs[2] <== secret;
component eq = IsEqual();
eq.in[0] <== hash.out;
eq.in[1] <== commitment;
eq.out === 1;
hash.inputs[3] <== nullifier;
component z = IsZero();
z.in <== address;
z.out === 0;
component smtV = SMTVerifier(nLevels);
smtV.enabled <== 1;
smtV.fnc <== 0;
smtV.root <== root;
for (var i=0; i<nLevels; i++) {
smtV.siblings[i] <== siblings[i];
}
smtV.oldKey <== 0;
smtV.oldValue <== 0;
smtV.isOld0 <== 0;
smtV.key <== hash.out;
smtV.value <== 0;
}
component main = Withdraw();
component main = Withdraw(5);