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