在多语言的生产环境下，常常是由一种语言进行加密而由另一种语言来进行解密，因此有必要保持各种语言之间加密解密算法的一致性。下面列出了Go，Nodejs，Java 的 Aes-128-Ecb的加密解密算法，它们的加解密结果是一致的。需要指出的是由于Nodejs对key做了md5计算，所以Golang和Java也需要对应加入key的md5计算。
Go 1.15
package mainimport ("crypto/aes""crypto/md5""encoding/hex""fmt")func generateMd5Key(str string) []byte {checksum := md5.Sum([]byte(str))return checksum[0:]}func aesEncryptECB(plaintext string, key string) string {origData := []byte(plaintext)checksum := generateMd5Key(key)cipher, _ := aes.NewCipher(checksum)length := (len(origData) + aes.BlockSize) / aes.BlockSizeplain := make([]byte, length*aes.BlockSize)copy(plain, origData)pad := byte(len(plain) - len(origData))for i := len(origData); i < len(plain); i++ {plain[i] = pad}encrypted := make([]byte, len(plain))for bs, be := 0, cipher.BlockSize(); bs <= len(origData); bs, be = bs+cipher.BlockSize(), be+cipher.BlockSize() {cipher.Encrypt(encrypted[bs:be], plain[bs:be])}return hex.EncodeToString(encrypted)}func aesDecryptECB(ciphertext string, key string) (string, error) {checksum := generateMd5Key(key)cipher, _ := aes.NewCipher(checksum)encrypted, err := hex.DecodeString(ciphertext)if err != nil {return "", err}decrypted := make([]byte, len(encrypted))for bs, be := 0, cipher.BlockSize(); bs < len(encrypted); bs, be = bs+cipher.BlockSize(), be+cipher.BlockSize() {cipher.Decrypt(decrypted[bs:be], encrypted[bs:be])}trim := 0if len(decrypted) > 0 {trim = len(decrypted) - int(decrypted[len(decrypted)-1])}return string(decrypted[:trim]), nil}func main() {key := "sykKw59_q11"plaintext := "C80E77ED1152"fmt.Printf("原 文：%s\n", plaintext)encrypted := aesEncryptECB(plaintext, key)fmt.Printf("加密结果：%s\n", encrypted)decrypted, err := aesDecryptECB(encrypted, key)if err != nil {panic(err)}fmt.Printf("解密结果：%s\n", decrypted)}
nodejs 8.16
/*** * aes加密* * @param data* * @param secretKey**/aesEncrypt = function(data, secretKey) {var cipher = crypto.createCipher('aes-128-ecb', secretKey);return cipher.update(data, 'utf8', 'hex') + cipher.final('hex');}/*** * aes解密* * @param data* * @param secretKey** @returns {*}**/aesDecrypt = function(data, secretKey) {var cipher = crypto.createDecipher('aes-128-ecb', secretKey);return cipher.update(data, 'hex', 'utf8') + cipher.final('utf8');}//console.log(aesEncrypt("C80E77ED1152", "sykKwe59_q11peDz"));let key = "sykKw59_q11";let plaintext = "C80E77ED1152";console.log("原 文：" + plaintext);let encrypted = aesEncrypt(plaintext, key);console.log("加密结果：" + encrypted);console.log("解密结果：" + aesDecrypt(encrypted, key));
java 1.8
package com.basic;import java.security.MessageDigest;import javax.crypto.Cipher;import javax.crypto.spec.SecretKeySpec;/*** AES加密，与Nodejs 保持一致* * @author lmiky* @date -2-25*/public class AesEcb {public static final String DEFAULT_CODING = "utf-8";/*** 解密* * @author lmiky* @date -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 -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);}/*** 字符串转字节数组* * @author lmiky* @date -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;}/*** 字节转16进制数组* * @author lmiky* @date -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 {String key = "sykKw59_q11";String plaintext = "C80E77ED1152";System.out.println("原 文：" + plaintext);String encrypted = encrypt(plaintext, key);System.out.println("加密结果：" + encrypted);System.out.println("解密结果：" + decrypt(encrypted, key));}}
输出：
原 文：C80E77ED1152加密结果：835748c230cbd352843fcabfd67415f2解密结果：C80E77ED1152
相关文章：
《Go Nodejs Java Aes 128 CBC 加密解密结果保持一致》
参考文章：
《nodejs和java的AES加密结果保持一致》
《golang的AES加密和解密的三种模式实现（CBC/ECB/CFB）》
