https://github.com/fanux/sealos
https://newcodingera.com/datatables-server-side-processing-using-nodejs-mysql/
https://1drv.ms/u/s!At2KEcnT9DVaiw88MAEXeML0bRf3
Important! SqlInjection ======================
datatables mongodb
https://github.com/deepikagunda/datatables
https://medium.com/@antonassocareer/web3-secp256k1-%E7%B0%BD%E7%AB%A0%E8%88%87solidity%E9%A9%97%E7%AB%A0-26ded518cfdc
那麼如果我們想要單純用私鑰簽章一段資料，不要有Ethereum定義的那些prefix的話，就必須要直接調用 secp256k1 這一包library了。不過在用之前要知道，所有要丟給secp256k1簽章的message，長度都必須是256 bits，也就是32 bytes。剛剛我們說web3的簽名函式丟什麼都可以，是因為它會幫我加上prefix之後再做sha3 Hash (keccak)，最後一定會變成一個32 bytes的東西。如果我們自己純靠私要簽章訊息的話，也勢必要先通過這個函式來整理input長度
sha3 Hash (keccak)
const bip39 = require('bip39') const bip32 = require('bip32'); const EC = require('elliptic').ec; json =`test json file` mnemonic = "簡 熙 夢 幾 聲 可 高 汪 煙 版 統 仇" path = "m/2018'/5'/1'/0/1" const sJWSinit = async () => { console.log('-----sJWS Initial Start----- \n'); dkey = await DeriveKey(mnemonic, path) console.log("\nGet dkey: %o \n", dkey) console.log('\n-----elliptic ed25519 Start----- \n'); var EdDSA = require('elliptic').eddsa var ec = new EdDSA('ed25519'); var eckeypair = ec.
bitcoinSecp256r1.HDNode.fromSeedBuffer 無法使用，目前正確應該是用 bitcoinSecp256r1.bip32.fromSeed
jsrsasign 有異常
const bip39 = require('bip39') const bip32 = require('bip32'); const bitcoinSecp256r1 = require('bitcoinjs-lib') const ethUtil = require('ethereumjs-util') const EC = require('elliptic').ec; // bitcoinSecp256r1.HDNode.fromSeedBuffer 無法使用，目前正確應該是用 bitcoinSecp256r1.bip32.fromSeed mnemonic = "簡 熙 夢 幾 聲 可 高 汪 煙 版 統 仇" path = "m/2018'/5'/1'/0/1" type = "secp256r1" // 驗證網頁 https://iancoleman.io/bip39/#chinese_traditional if (bip39.validateMnemonic(mnemonic)) { console.log("mnemonic is fake!") } const seed = bip39.mnemonicToSeed(mnemonic).then((vseed)=>{ var root = bip32.fromSeed(vseed) var PathNode = root.
https://github.com/knownsec/Ethereum-Smart-Contracts-Security-CheckList/blob/master/%E4%BB%A5%E5%A4%AA%E5%9D%8A%E6%99%BA%E8%83%BD%E5%90%88%E7%BA%A6%E5%AE%A1%E8%AE%A1CheckList.md#11-%E6%9C%AA%E5%88%9D%E5%A7%8B%E5%8C%96%E7%9A%84%E5%82%A8%E5%AD%98%E6%8C%87%E9%92%88
https://www.chaindd.com/3102377.html
https://blog.b9lab.com/storage-pointers-in-solidity-7dcfaa536089
https://medium.com/loom-network/ethereum-solidity-memory-vs-storage-how-to-initialize-an-array-inside-a-struct-184baf6aa2eb
Use delete or new
Use https://remix.ethereum.org Get Contract json and data. In remix website, Compile finish. See Compliation Details. 1. ABI： click ABI buttion, get data. Use http://jsonviewer.stack.hu/ remove space 2. Compliation Details -> WEB3DEPLOY -> get data 3. cContract.options.from need put correct.
var Web3 = require("web3"); var provider = new Web3.providers.HttpProvider("http://ganache:8545"); var web3 = new Web3(provider); //abi var cContract = new web3.eth.Contract([{"constant":false,"inputs":[{"name":"x","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]) //bytecode cContract.options.data = '0x608060405234801561001057600080fd5b5060bf8061001f6000396000f30060806040526004361060485763ffffffff7c010000000000000000000000000000000000000000000000000000000060003504166360fe47b18114604d5780636d4ce63c146064575b600080fd5b348015605857600080fd5b5060626004356088565b005b348015606f57600080fd5b506076608d565b60408051918252519081900360200190f35b600055565b600054905600a165627a7a72305820765480c908e5e28e3233e18bfa422944b42cad5fc08b77d7b22d3ddd7016a1380029' cContract.options.from = '0xoooxxxoooxxxoooxxxoooxxxoooxxx' cContract.options.gas = '4700000' console.
