vCardShare/encrypt.html at main · Cemu0/vCardShare · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Hello</title>
</head>
<body>
    <h1>Encrypt vCard infomation</h1>
    <h1>This should be able to completely run offline and absolute not store or send any infomation to anywhere, just to ensure you should turn off internet </h1>
    <fieldset id="fill_field">
        <div>
          <label for="fileF"><u>Click Here</u> to upload image (should smaler than 100kbs for convernear)</label>
          <input type="file" id="fileF" hidden /><br />
          <img width="100" alt="Image preview" id="previewF" />
        </div>
        <button id="encodeF">Encode</button>
      </fieldset>
      <div>Result</div>
      <textarea id="result" rows="10" cols="30"></textarea>
      <button id="clearData">CLEAR DATA</button>

    <script src="libs/scrypt.js" type="text/javascript"></script>
    <script src="libs/buffer.js" type="text/javascript"></script>
    <script src="libs/setImmediate.js" type="text/javascript"></script>
    <script src="libs/aes-js.js" type="text/javascript"></script>

    <script>
        "use strict";
        const info = [
            "telegram",
            "facebook",
            "whatsapp",
            "instagram",
            "twitter",
            "linkedin",
            "github",
            "youtube",
            "tiktok",
            "snapchat",
            "pinterest",
            "tumblr",
            "reddit",
            "discord",
            "skype",
            "line",
            "wechat",
            "viber",
            "signal",
            "zoom",
            "org",
            "title",
            "email",
            "phone",
            "website",
            "birthday",
            "address",
            "nickname",
            "cardInfo",
            "info",
            "name",
            "password",
        ]

        //render lable and input field
        const fill_field = info.map((field) => {
            const div = document.createElement("div");
            const label = document.createElement("label");
            label.setAttribute("for", field + "F");
            label.textContent = field;
            let input = null;
            if (field === "cardInfo") {
                input = document.createElement("textarea");
                input.setAttribute("rows", "5");
                input.setAttribute("cols", "30");
            } else {
                input = document.createElement("input");
            }

            if (field === "birthday") {
                input.setAttribute("type", "date");
            }

            input.setAttribute("id", field + "F");

            div.appendChild(label);
            div.appendChild(input);
            document.getElementById("fill_field").insertBefore(div, document.getElementById("fill_field").firstChild);
            return input;
        });

        const fake_info = {
            "password": "TKf2GB1aG",
            "name": "John Doe",
            "info": "Doe;John;",
            "nickname": "JD",
            "birthday": "2000-01-01",
            "cardInfo": "Two giants live in Britain's land\n John Doe and Richard Roe, \n Who always travel hand in hand, \n John Doe and Richard Roe.",
            "org": "Company",
            "title": "Engineer",
            "email": "example@e.com",
            "phone": "0123456789",
            "address": "HoChiMinh, Vietnam",
            "website": "https://example.com",
            "telegram": "https://t.me/username",
            "facebook": "https://facebook.com/username",
            "whatsapp": "https://wa.me/0123456789",
            "instagram": "https://instagram.com/username",
            "twitter": "https://twitter.com/username",
            "linkedin": "https://linkedin.com/in/username",
            "github": "https://git.com/username",
            "youtube": "https://youtube.com/channel/username",
            "tiktok": "https://tiktok.com/@username",
            "snapchat": "https://snapchat.com/add/username",
            "pinterest": "https://pinterest.com/username",
            "tumblr": "https://tumblr.com/username",
            "reddit": "https://reddit.com/user/username",
            "discord": "https://discord.com/username",
            "skype": "https://skype.com/username",
            "line": "https://line.me/ti/p/username",
            "wechat": "https://wechat.com/username",
            "viber": "https://viber.com/username",
            "signal": "https://signal.com/username",
            "zoom": "https://zoom.com/username",
        }
        //fill fake_info to input field
        for (const key in fake_info) {
            if (Object.hasOwnProperty.call(fake_info, key)) {
                const element = fake_info[key];
                console.log(key, element);
                document.getElementById(key + "F").value = element;
            }
        }


        function previewFile(event) {
            let reader = new FileReader();
            let file = event.target.files[0];

            reader.readAsDataURL(file);
            reader.onloadend = () => (previewF.src = reader.result);
        }
        fileF.addEventListener('change', previewFile);
        document.getElementById("clearData").addEventListener('click', function() {
            fill_field.forEach((field) => {
                field.value = "";
            });
            previewF.src = "";
            result.value = "";
        });
        encodeF.addEventListener('click', function() {

            let json_target = {};

            fill_field.forEach((field) => {
                if (field.value !== "") {
                    let new_key = field.id.replace("F", "");
                    json_target[new_key] = field.value;
                }
            });

            //correnct the date format to (YYYY-MM-DD)
            if (json_target.birthday) {
                let date = new Date(json_target.birthday);
                let year = date.getFullYear();
                let month = date.getMonth() + 1;
                let dt = date.getDate();

                if (dt < 10) {
                    dt = '0' + dt;
                }
                if (month < 10) {
                    month = '0' + month;
                }
                json_target.birthday = year + '-' + month + '-' + dt;
            }
            //add image to json
            json_target.image = previewF.src;

            let your_password = json_target['password'];
            console.log("Your password: ", your_password, );
            //remove password from json TKf2GB1aG
            delete json_target.password;

            if (!your_password.match(/^[A-Za-z0-9]+$/) || your_password.length < 8){
                console.log("Password should contain at least 8 characters, including at least 1 number, 1 letter");
                result.value = "Password should contain at least 8 characters, including at least 1 number, 1 uppercase letter, and 1 lowercase letter.";
            }else{
                const password = new buffer.SlowBuffer(your_password.toLocaleLowerCase().normalize('NFKC'));
                const salt = new buffer.SlowBuffer("someSalt".normalize('NFKC'));

                //N for CPU calculate

                const N = 16384, r = 8, p = 2;
                const dkLen = 32;

                console.log("Password is valid.");
                result.value = "Encrypting..."
                //generate key
                const start = new Date();
                const key = scrypt.syncScrypt(password, salt, N, r, p, dkLen);
                const end = new Date();
                console.log("Time: ", end - start, "ms");
                console.log("Derived Key (sync): ", key);

                //encrypt
                let text = JSON.stringify(json_target);
                let textBytes = aesjs.utils.utf8.toBytes(text);
                var aesCtr = new aesjs.ModeOfOperation.ctr(key, new aesjs.Counter(5));
                let encryptedBytes = aesCtr.encrypt(textBytes);

                let encryptedHex = aesjs.utils.hex.fromBytes(encryptedBytes);
                console.log("Encrypted: ", encryptedHex);

                //attempt decrypt
                encryptedBytes = aesjs.utils.hex.toBytes(encryptedHex);
                aesCtr = new aesjs.ModeOfOperation.ctr(key, new aesjs.Counter(5));
                let decryptedBytes = aesCtr.decrypt(encryptedBytes);
                let decryptedText = aesjs.utils.utf8.fromBytes(decryptedBytes);
                console.log("Decrypted: ", decryptedText);
                console.log("Decrypted Json: ", JSON.parse(decryptedText));

                result.value = encryptedHex;
            }
        });

</script>

</body>
</html>