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vigenere.html
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vigenere.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Vigenere</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script language="javascript" src="vigenere.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<header>Mã hóa Vigenère</header>
<article>
<p>
<label>Plain text - Chuỗi chưa mã hóa:</label>
<br/>
<textarea id="plainText" cols="30"></textarea>
</p>
<p>
<label>Cipher text - Chuỗi sau khi mã hóa: </label>
<br/>
<textarea id="cipherText" cols="30"></textarea>
</p>
<p>
<label>Key K: </label>
<input title="Nhập các kí tự từ A-Z" type="text" id="key" pattern="^[a-zA-Z]+">
</p>
<div id="errorMsg" class="error"></div>
<p>
<button type="button" onclick="btnEncrypt()">Encrypt</button>
<button type="button" onclick="btnDecrypt()">Decrypt</button>
</p>
</article>
</body>
</html>