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<html>
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<head>
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<title>AES加解密</title>
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<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
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<script src="js/aes.js"></script>
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<script>
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function getByteLen(val) {
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var len = 0;
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for (var i = 0; i < val.length; i++) {
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if (val[i].match(/[^\x00-\xff]/ig) != null) len += 3;
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else len += 1;
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}
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return len;
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}
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function onbtnEncrypto() {
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var plaintText = document.getElementById("input").value;
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var keyword = document.getElementById("inputkey").value;
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if (plaintText.replace(/(^\s*)|(\s*$)/g, "") == '') {
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alert("输入要加密的内容！");
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return;
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}
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if (keyword.replace(/(^\s*)|(\s*$)/g, "") == '') {
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alert("输入要加密的key！");
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return;
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}
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while (getByteLen(keyword) % 8 != 0) {
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keyword = keyword + "\0";
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}
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var key = CryptoJS.enc.Utf8.parse(keyword);
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var encryptedData = CryptoJS.AES.encrypt(plaintText, key, {
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mode: CryptoJS.mode.ECB,
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padding: CryptoJS.pad.Pkcs7
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});
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encryptedData = encryptedData.ciphertext.toString();
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document.getElementById("output").value = encryptedData;
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}
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function onbtnDecrypto() {
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var encryptedData = document.getElementById("input").value;
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var keyword = document.getElementById("inputkey").value;
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if (encryptedData.replace(/(^\s*)|(\s*$)/g, "") == '') {
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alert("输入要加密的内容！");
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return;
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}
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if (keyword.replace(/(^\s*)|(\s*$)/g, "") == '') {
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alert("输入要加密的key！");
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return;
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}
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while (getByteLen(keyword) % 8 != 0) {
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keyword = keyword + "\0";
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}
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var key = CryptoJS.enc.Utf8.parse(keyword);
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var encryptedHexStr = CryptoJS.enc.Hex.parse(encryptedData);
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var encryptedBase64Str = CryptoJS.enc.Base64.stringify(encryptedHexStr);
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var decryptedData = CryptoJS.AES.decrypt(encryptedBase64Str, key, {
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mode: CryptoJS.mode.ECB,
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padding: CryptoJS.pad.Pkcs7
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});
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if (decryptedData.sigBytes < 0) {
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document.getElementById("output").value = "解密失败！密文或者key错误!";
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return;
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}
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try {
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decryptedData.toString(CryptoJS.enc.Utf8)
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} catch(e) {
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document.getElementById("output").value = "解密失败！密文或者key错误!";
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return;
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}
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var decryptedStr = decryptedData.toString(CryptoJS.enc.Utf8);
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document.getElementById("output").value = decryptedStr;
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}
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</script>
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</head>
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<body>
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<div>
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<br />
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<textarea id="input" name="input" style="width: 80%" rows="8">这里是要加密的内容!</textarea>
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<br />key:
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<input id="inputkey" type="text" />
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<br />
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<p> <button id="en" class="btn" onclick="onbtnEncrypto()" style="width:100px">加密</button> <button id="de" class="btn" onclick="onbtnDecrypto()" style="width:100px">解密</button> </p>
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<textarea id="output" name="output" style="width: 80%" rows="10"></textarea>
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</div>
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</body>
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</html>
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