add zk rollup task

Author: yanyanho

basic/22-zk-snarkjs/.gitignore

@@ -5,13 +5,15 @@ circuit_js/
 circuit.circom
 circuit.r1cs
 circuit.sym
+circuit.json
 powersOfTau28_hez_final_10.ptau
 circuit_0000.zkey
 verification_key.json
 input.json
 witness.wtns
 witness.json
 proof.json
+proving_key.json
 public.json
 verifier.sol
 circuit_final.zkey

basic/36-nft-ipfs/README.md

@@ -0,0 +1,39 @@
+# Zk-rollup
+
+
+## 执行步骤
+1. compile 
+```
+    circom sample_circuit.circom -o circuit.json
+```
+
+2. Generate your input for the circuit
+```
+node generate_circuit_input.js
+```
+
+3. Calculate the witness for the circuit
+```
+snarkjs calculatewitness -c circuit.json -i input.json
+
+```
+
+4. Perform trusted setup
+```
+snarkjs setup -c circuit.json --protocol groth
+```
+
+5. Generate the proof
+```
+snarkjs proof -w witness.json --pk proving_key.json
+```
+
+6. Verify the proof
+
+```
+snarkjs verify
+```
+## 参考文档
+- ZkRollup Tutorial: https://keen-noyce-c29dfa.netlify.app/#3
+
+

basic/36-zk-rollup/README.md

@@ -0,0 +1 @@
+Subproject commit 7c67b63fc046d93400cf80f104c9cc8396cf3ff8

basic/36-zk-rollup/RollupNC_tutorial

@@ -1,5 +1,68 @@
-# 
+# 简介
 
+数据存储在 ipfs 上后, 在 Dapp 前端就可以通过 api 进行访问, 达到去中心化的目的.
+我们可以使用两种方式进行
+//todo
+FileCoin
 
-## 参考链接
-- zknft: https://medium.com/centrifuge/bringing-privacy-to-non-fungible-tokens-a-recap-from-the-zokrates-workshop-at-zcon1-6d9ea8a74b7f
+## 测试 nft.storage 流程
+
+- 账户注册  
+  注册https://nft.storage/, 获得 nft.storage API Key, 写入.env
+- 安装 nft.storage 以及其他依赖
+
+```shell
+npm install
+```
+
+- 运行 js 文件
+
+```shell
+node scripts/nftStorage-uploadfile
+```
+
+## 测试 ipfs.infura 流程
+
+- 在 infura 上创建 ipfs 工程  
+  登陆 infura, 然后进入 Dashboard, 之后在 "IPFS" 标签页中创建 IPFS 工程
+  <center><img src="https://github.com/Dapp-Learning-DAO/Dapp-Learning-Arsenal/blob/main/images/basic/36-nft-ipfs/ipfs-infura.png?raw=true" /></center>
+
+- 获取 "PROJECT ID" 和 "PROJECT SECRET"  
+  点击刚才创建的 IPFS 工程, 然后获取其中的 "PROJECT ID" 和 "PROJECT SECRET"
+
+- 上传文件  
+  替换如下命令中的 PROJECT_ID, PROJECT_SECRET.
+
+```shell
+cd data;
+curl -X POST -F [email protected] \
+-u "<PROJECT_ID>:<PROJECT_SECRET>" \
+"https://ipfs.infura.io:5001/api/v0/add"
+```
+
+之后可以看到如下输出:
+
+```shell
+{
+      "Name":"ipfs_file_docs_getting_started_demo.txt",
+      "Hash":"QmeGAVddnBSnKc1DLE7DLV9uuTqo5F7QbaveTjr45JUdQn",
+      "Size":"44"
+}
+```
+
+- 获取文件 && 验证  
+  替换如下命令中的 Hash 参数, 然后执行如下命令, 之后检查 matic.jpeg 文件.
+
+```shell
+rm matic.jpeg
+curl -X POST -u "PROJECT_ID:PROJECT_SECRET" \
+"https://ipfs.infura.io:5001/api/v0/pin/add?arg=<Hash>" -o matic.jpeg
+```
+
+## 参考文档
+
+- <https://www.bilibili.com/video/BV1j5411w7MH>
+- <https://pinata.cloud/pinmanager>
+- <https://nft.storage>
+- https://infura.io/docs/ipfs#section/Authentication/Using-Javascript
+- zknft: https://medium.com/centrifuge/bringing-privacy-to-non-fungible-tokens-a-recap-from-the-zokrates-workshop-at-zcon1-6d9ea8a74b7f