前言
工作中遇到nodejs端通過aes加密，安卓客戶端Java解密，同樣nodejs也需要解密安卓客戶端加密過來的內容，發現兩個加密結果不一樣，查詢資料發現java端需要對密鑰再MD5加密一遍，以下是Java與Node.js利用AES加密解密出相同結果的方法，需要的朋友們下面來一起學習學習吧。
JAVA代碼如下：
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package g.g;import java.security.MessageDigest;import javax.crypto.Cipher;import javax.crypto.spec.SecretKeySpec;public class AesECB { public static final String DEFAULT_CODING = "utf-8"; /** * 解密 * @author lmiky * @date 2014-2-25 * @param encrypted * @param seed * @return * @throws Exception */ private static String decrypt(String encrypted, String seed) throws Exception { byte[] keyb = seed.getBytes(DEFAULT_CODING); MessageDigest md = MessageDigest.getInstance("MD5"); byte[] thedigest = md.digest(keyb); SecretKeySpec skey = new SecretKeySpec(thedigest, "AES"); Cipher dcipher = Cipher.getInstance("AES"); dcipher.init(Cipher.DECRYPT_MODE, skey); byte[] clearbyte = dcipher.doFinal(toByte(encrypted)); return new String(clearbyte); } /** * 加密 * @author lmiky * @date 2014-2-25 * @param content * @param key * @return * @throws Exception */ public static String encrypt(String content, String key) throws Exception { byte[] input = content.getBytes(DEFAULT_CODING); MessageDigest md = MessageDigest.getInstance("MD5"); byte[] thedigest = md.digest(key.getBytes(DEFAULT_CODING)); SecretKeySpec skc = new SecretKeySpec(thedigest, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, skc); byte[] cipherText = new byte[cipher.getOutputSize(input.length)]; int ctLength = cipher.update(input, 0, input.length, cipherText, 0); ctLength += cipher.doFinal(cipherText, ctLength); return parseByte2HexStr(cipherText); } /** * 字符串轉字節數組 * @author lmiky * @date 2014-2-25 * @param hexString * @return */ private static byte[] toByte(String hexString) { int len = hexString.length() / 2; byte[] result = new byte[len]; for (int i = 0; i < len; i++) { result[i] = Integer.valueOf(hexString.substring(2 * i, 2 * i + 2), 16).byteValue(); } return result; } /** * 字節轉16進制數組 * @author lmiky * @date 2014-2-25 * @param buf * @return */ private static String parseByte2HexStr(byte buf[]) { StringBuffer sb = new StringBuffer(); for (int i = 0; i < buf.length; i++) { String hex = Integer.toHexString(buf[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } sb.append(hex); } return sb.toString(); } public static void main(String[] args) throws Exception { System.out.println(AesECB.encrypt("fsadfsdafsdafsdafsadfsadfsadf", "1eVRiqy7b9Uv7ZMM")); System.out.println(AesECB.decrypt("b123e2d9199598c0e3f1999dc9e723387b68e29d2b3a0d59fc7d5946c750c6b4", "1eVRiqy7b9Uv7ZMM")); }} |
Node.js代碼如下：
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var crypto = require('crypto');exports.aes_algorithm = "aes-128-ecb";exports.aes_secrect = "1eVRiqy7b9Uv7ZMM";exports.encrypt = function (text) { var cipher = crypto.createCipher(this.aes_algorithm, this.aes_secrect) var crypted = cipher.update(text, 'utf8', 'hex') crypted += cipher.final('hex'); return crypted;};exports.decrypt = function (text) { var decipher = crypto.createDecipher(this.aes_algorithm, this.aes_secrect) var dec = decipher.update(text, 'hex', 'utf8') dec += decipher.final('utf8'); return dec;};//var hw = this.encrypt("fsadfsdafsdafsdafsadfsadfsadf");//console.log(hw);//console.log(this.decrypt(hw)); |
總結
以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作能帶來一定的幫助，如果有疑問大家可以留言交流，謝謝大家對服務器之家的支持。
