Updates light sdk

light-circuits/.gitignore

@@ -1,3 +1,5 @@
 
 node_modules
 test-ledger
+ptau17
+ptau15

light-circuits/buildCircuit.sh

@@ -0,0 +1,15 @@
+#!/bin/bash -e
+POWERS_OF_TAU=17 # circuit will support max 2^POWERS_OF_TAU constraints
+if [ ! -f ./ptau$POWERS_OF_TAU ]; then
+  echo "Downloading powers of tau file"
+  curl -L https://hermez.s3-eu-west-1.amazonaws.com/powersOfTau28_hez_final_$POWERS_OF_TAU.ptau --create-dirs -o ./$POWERS_OF_TAU
+fi
+circom --r1cs --wasm circuits/transaction$1$2.circom -o ../light-sdk-ts/build-circuits/
+npx snarkjs groth16 setup ../light-sdk-ts/build-circuits/transaction$1$2.r1cs ./ptau$POWERS_OF_TAU ../light-sdk-ts/build-circuits/tmp_transaction$1$2.zkey
+npx snarkjs zkey contribute ../light-sdk-ts/build-circuits/tmp_transaction$1$2.zkey ../light-sdk-ts/build-circuits/transaction$1$2.zkey -e="321432151325321543215"
+npx snarkjs zkey verify ../light-sdk-ts/build-circuits/transaction$1$2.r1cs ptau$POWERS_OF_TAU ../light-sdk-ts/build-circuits/transaction$1$2.zkey
+npx snarkjs zkey export verificationkey ../light-sdk-ts/build-circuits/transaction$1$2.zkey verification_key_mainnet$2.json
+node parse_pvk_to_bytes_254.js $2
+rm verification_key_mainnet$2.json
+rm ./transaction$1$2.r1cs
+rm ./tmp_transaction$1$2.zkey

light-circuits/circuits/transactionApp4.circom

@@ -0,0 +1,5 @@
+pragma circom 2.0.0;
+include "./transaction_app.circom";
+
+// 2 in 2 out 3 assets (min to do a swap)
+component main {public [root,inputNullifier, outputCommitment,publicAmount,extDataHash,feeAmount,mintPubkey, verifier, connectingHash]} = TransactionAccount(18, 4, 4, 0, 0, 1, 3, 2, 2);