java 加密
AESUtil.encrypt(s, pwd)go 解密
content, err := hex.DecodeString(message.Data) if err != nil { return nil, nil, err } tb, err := AesDecrypt(content, secret) if err != nil { return nil, nil, err } // aes 解密 func AesDecrypt(crypted, key []byte) ([]byte, error) { key = addSuffix(key) block, err := aes.NewCipher(key) if err != nil { return nil, err } blockMode := cipher.NewCBCDecrypter(block, iv) origData := make([]byte, len(crypted)) blockMode.CryptBlocks(origData, crypted) origData = PKCS5UnPadding(origData) return origData, nil } // aes规定秘钥必须是8的倍数，8还不行，所以在这里固定成16 func addSuffix(secret []byte) []byte { s := string(secret) len := len(s) for i:=0; i<16-len; i++ { s += "=" } return []byte(s) } func PKCS5Padding(ciphertext []byte, blockSize int) []byte { padding := blockSize - len(ciphertext)%blockSize padtext := bytes.Repeat([]byte{byte(padding)}, padding) return append(ciphertext, padtext...) } func PKCS5UnPadding(origData []byte) []byte { length := len(origData) unpadding := int(origData[length-1]) return origData[:(length - unpadding)] } // aes 加密 func AesEncrypt(origData, key []byte) ([]byte, error) { key = addSuffix(key) block, err := aes.NewCipher(key) if err != nil { return nil, err } blockSize := block.BlockSize() origData = PKCS5Padding(origData, blockSize) blockMode := cipher.NewCBCEncrypter(block, iv) crypted := make([]byte, len(origData)) blockMode.CryptBlocks(crypted, origData) return crypted, nil } // 这个没用 // 使用现有的数据做计算，如果计算结果匹配，说明秘钥正确，如果不匹配，说明秘钥错误 func verifySecret(data *Data, secret []byte) error { log.Info("开始验证秘钥") ab, err := json.Marshal(data.Account) if err != nil { return err } hashes := Hash(ab) res, err := AesEncrypt(hashes, secret) //log.Infof("进行正向加密： %s", string(res)) //log.Info(res) //log.Info(hex.EncodeToString(res)) //log.Infof("状态数据的hash： %s", data.Hash) //log.Info([]byte(data.Hash)) //log.Info(hex.EncodeToString([]byte(data.Hash))) if err != nil { return err } // bytes.Compare([]byte(data.Hash), res) == 0 该方法比较失败 // data.Hash == string(res) 比较失败 // bytes.Equal([]byte(data.Hash), res) 失败 // strings.Compare(data.Hash, string(res)) == 0 失败 if strings.EqualFold(data.Hash, string(res)) { // 成功 log.Info("秘钥验证通过") return nil } else { log.Info("秘钥验证失败") return verifyKeyErr } } public class AESUtil { //初始化向量，aes 16位 private static final String IV = "abcdefghijk1mnop"; //二进制转变为16进制 public 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(); } //将16进制转变为二进制 public static byte[] parseHexStr2Byte(String hexStr) { if (hexStr.length() < 1) { return null; } byte[] result = new byte[hexStr.length() / 2]; for (int i = 0; i < hexStr.length() / 2; i++) { int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16); int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2), 16); result[i] = (byte) (high * 16 + low); } return result; } //加密 public static String encrypt(String content, String keyWord) throws Exception { keyWord = addSuffix(keyWord); try { SecretKeySpec key = new SecretKeySpec(keyWord.getBytes(), "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(IV.getBytes())); byte[] encryptedData = cipher.doFinal(content.getBytes("UTF-8")); return parseByte2HexStr(encryptedData); } catch (Exception e) { throw new Exception("加密失败"); } } //解密 public static String decrypt(String content, String keyWord) throws Exception { keyWord = addSuffix(keyWord); byte[] contentBytes = parseHexStr2Byte(content); try { SecretKeySpec key = new SecretKeySpec(keyWord.getBytes(), "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(IV.getBytes())); byte[] result = cipher.doFinal(contentBytes); return new String(result, "UTF-8"); } catch (Exception e) { throw new Exception("解密失败"); } } public static String addSuffix(String key) { int len = key.length(); if (len >= 16) { return key; } for (int i=0; i<16-len; i++) { key += "="; } return key; } public static void main(String[] args) throws Exception { String content = "梅须逊雪三分白，雪却输梅一段香。"; //此处使用AES-128-CBC加密模式，key需要为16位 String password = "********"; System.out.println("加密前：" + content); String encryptResult = AESUtil.encrypt(content, password); System.out.println("加密后：" + encryptResult); String decryptResult = AESUtil.decrypt(encryptResult,password); System.out.println("解密后：" + decryptResult); } }