cold-wallet-generator/litecoin.html at main · expatjedi/cold-wallet-generator · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
<!DOCTYPE html>
<html lang=en>
<head>
    <meta charset=UTF-8>
    <title>Litecoin Cold Wallet Generator</title>
    <meta name=description content="A lightweight, client-side, reliable, fast, open-source universal cold wallet generator supporting almost every major cryptocurrency">
    <meta name=keywords content="minimal, reliable, fast, universal, cold, wallet, generator, offline, litecoin, ltc, cryptocurrency">
    <meta name=viewport content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="css/style2.css">
    <script src="js/bitcoinjs-lib.js"></script>
    <script src="js/qrcode.js"></script>
    <script src="js/bip39.min.js"></script>
</head>
<body onload=generate()>
    <div class="container">
        <h1>Litecoin Cold Wallet</h1>
        <div class="button-group">
            <button onclick="window.location.href='index.html'">Home</button>
            <button onclick="generate()">Generate</button>
            <button onclick="window.print()">Print</button>
        </div>
        <div class="info-box">
            <label>Public Address (SHARE)</label>
            <span id="public">Click Generate to create wallet</span>
            <div id="public_qr" class="qr-code"></div>
        </div>
        <div class="info-box">
            <label>Mnemonic Seed (SECRET)</label>
            <span id="secret">Click Generate to create wallet</span>
            <div id="secret_qr" class="qr-code"></div>
        </div>
    </div>
    <script>
        async function generate() {
            if (typeof bip39 === "undefined" || typeof bitcoin === "undefined") {
                alert("bip39 and bitcoinjs-lib are required!");
                return;
            }
            // Litecoin network params
            const litecoin = {
                messagePrefix: '\x19Litecoin Signed Message:\n',
                bech32: 'ltc',
                bip32: {
                    public: 0x019da462,
                    private: 0x019d9cfe
                },
                pubKeyHash: 0x30,
                scriptHash: 0x32,
                wif: 0xb0
            };

            // 1. Generate mnemonic
            const mnemonic = bip39.generateMnemonic(256); // 24-word phrase

            // 2. Get seed from mnemonic
            const seed = bip39.mnemonicToSeedSync(mnemonic); // Buffer

            // 3. Derive Litecoin key from seed (BIP84 for segwit/bech32)
            const root = bitcoin.bip32.fromSeed(seed, litecoin);
            const child = root.derivePath("m/84'/2'/0'/0/0"); // BIP84 for Litecoin

            const { address } = bitcoin.payments.p2wpkh({ pubkey: child.publicKey, network: litecoin });

            // Update DOM
            const publicElem = document.getElementById("public");
            const mnemonicElem = document.getElementById("secret");
            const publicQRElem = document.getElementById("public_qr");
            const mnemonicQRElem = document.getElementById("secret_qr");

            if (publicElem && mnemonicElem && publicQRElem && mnemonicQRElem) {
                publicElem.textContent = address;
                mnemonicElem.textContent = mnemonic;

                publicQRElem.innerHTML = "";
                mnemonicQRElem.innerHTML = "";

                new QRCode(publicQRElem, {
                    text: address,
                    width: 100,
                    height: 100,
                    colorDark: "#e0e0e0",
                    colorLight: "#1e1e1e",
                    correctLevel: QRCode.CorrectLevel.H
                });
                new QRCode(mnemonicQRElem, {
                    text: mnemonic,
                    width: 100,
                    height: 100,
                    colorDark: "#e0e0e0",
                    colorLight: "#1e1e1e",
                    correctLevel: QRCode.CorrectLevel.H
                });
            }
        }
    </script>
</body>
</html>