ethereum.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Ethereum Paper Wallet Generator</title>
<meta name="description" content="A lightweight, client-side, reliable, fast, open-source universal paper wallet generator supporting almost every major cryptocurrency">
<meta name="keywords" content="minimal, reliable, fast, universal, paper, wallet, generator, offline, ethereum, eth, erc20, token, cryptocurrency">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="css/style2.css">
</head>
<body  >
<div id="container"><br>
<div class="noprint"><button onclick="generate()">Generate</button>
<button onclick="window.print()">Print</button>
<a href="index.html"><input type="button" value="Home"/></a>


<!---->
<br>
<div>
<label>My address need include(The longer the custom string, the longer the generation time):</label>
<br>
<input id="SpecifyKeyword" type="" name=""  placeholder="66">
<button onclick="generate(true);">Generate custom public address</button>
 
<button onclick="generate(false);">Generate custom private address</button>
</div>
<!---->


</div>


<table>
<tr><h1 id="titlePaper"><span id="currencyName">Ethereum Paper Wallet</h1></tr>
<tr><th class="grayHeaders">Public Address <span id="shareColor">(SHARE)</span></th></tr>
<tr><td><div id="public">  </div></td></tr>
<tr><td><div id="public_qr"></div></td></tr>
<tr><th class="grayHeaders"><div id="secretLabel">Private Key <span id="secretColor">(SECRET)</span></div></th></tr>
<tr><td><div id="secret"> </div></td></tr>
<tr><td><div id="secret_qr"></div></td></tr>
</table>
</div>
<script>
const urlParam = window.location.search.substring(1); if(urlParam){document.getElementById ("currencyName").textContent = urlParam; document.title = urlParam + " Paper Wallet";}
</script>
<script src="js/web3-eth-accounts.js"></script>
<script src="js/qrcode.js"></script>
<script>
async function generate(isPublic) {
console.log("isPublic",isPublic );

		document.getElementById("public").textContent = "";
document.getElementById("secret").textContent = "";
document.getElementById("public_qr").textContent = "";
document.getElementById("secret_qr").textContent = "";
const timer = ms => new Promise(res => setTimeout(res, ms)) 
document.getElementById("public").textContent =   "Generating...";


var account  ;
var keyPair  ;
var pubKey  ;
var privKey ;


/////////////////////////////////////
 
var CustomString=document.getElementById('SpecifyKeyword').value;
console.log("CustomString",CustomString );
console.log("CustomString.length",CustomString.length);
 

do {

	await timer(1); 

var step;

  account = new Web3EthAccounts();
  keyPair = account.create();
  pubKey = JSON.parse(JSON.stringify(keyPair.address));
  privKey = JSON.parse(JSON.stringify(keyPair.privateKey));
 

if (isPublic) {
LastString= pubKey.substr(pubKey.length - CustomString.length); 

}else{
	LastString= privKey.substr(privKey.length - CustomString.length); 
}
console.log('LastString:',LastString);


document.getElementById("public").textContent = pubKey;
document.getElementById("secret").textContent = privKey;
 // if (pubKey.includes("888")) {

  // break;
 // }
} while (!LastString.includes(CustomString));

//}

   console.log('******pubKey:',pubKey);
/////////////////////////////////////


document.getElementById("public").textContent = pubKey;
document.getElementById("secret").textContent = privKey;
document.getElementById("public_qr").textContent = "";
document.getElementById("secret_qr").textContent = "";
new QRCode(document.getElementById("public_qr"), {text: pubKey, width: 128, height: 128, correctLevel : QRCode.CorrectLevel.H});
new QRCode(document.getElementById("secret_qr"), {text: privKey, width: 128, height: 128, correctLevel : QRCode.CorrectLevel.H});}
 
</script>
</body>
</html>