fix:sonar
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@@ -9,7 +9,7 @@ import java.util.Collections;
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public class SdmResponse<T> implements Serializable {
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private int code;
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private String message;
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private T data;
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private transient T data;
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public SdmResponse() {
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}
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@@ -1,214 +0,0 @@
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package com.ccag.utils;
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import lombok.extern.slf4j.Slf4j;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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import org.springframework.stereotype.Component;
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import javax.crypto.*;
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import javax.crypto.spec.SecretKeySpec;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.security.Security;
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import java.util.Base64;
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@Slf4j
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@Component
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public class AESUtil {
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private static final String FINAL_PARAM = "XzKRqYnUypdE8VJ41yo/i0rMpZ0IlztSZ1PqWhr0q/c=";
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/**
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* 块大小固定为8字节
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*/
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private final static String AES_CBC_PKCS5PADDING = "RSA/ECB/OAEPWITHSHA-256ANDMGF1PADDING";
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/**
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* 加密字符串
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*
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* @param content 加密数据
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* @return 密文
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* @throws Exception
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*/
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public static String encode(String content) throws Exception {
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byte[] key = Base64.getDecoder().decode(FINAL_PARAM);
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byte[] data = content.getBytes();
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SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
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Cipher cipher = Cipher.getInstance(AES_CBC_PKCS5PADDING);
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cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
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return Base64.getEncoder().encodeToString(cipher.doFinal(data));
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}
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/**
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* 解密字符串
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*
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* @param content 密文
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* @return 解密后的数据
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* @throws Exception
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*/
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public static String decode(String content) throws Exception {
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byte[] key = Base64.getDecoder().decode(FINAL_PARAM);
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SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
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Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
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cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
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return new String(cipher.doFinal(Base64.getDecoder().decode(content)));
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}
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/**
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* 生成随机密钥
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*
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* @return
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*/
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public static SecretKey keyGenerator() {
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KeyGenerator keyGenerator = null;
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try {
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keyGenerator = KeyGenerator.getInstance("AES");
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} catch (NoSuchAlgorithmException e) {
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throw new RuntimeException(e);
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}
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keyGenerator.init(256, new SecureRandom());
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return keyGenerator.generateKey();
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}
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// public static void main(String[] args) {
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// try {
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// String ret = encode("03BD691EB0264CECF79");
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// System.out.println("encode:" + ret);
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// String raw = decode(ret);
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// System.out.println("decode:" + raw);
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// } catch (Exception e) {
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// throw new RuntimeException(e);
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// }
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// }
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/**
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* get Cipher
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*
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* @param mode
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* @param sKey
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* @return
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*/
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private static Cipher getCipher(int mode, String sKey) {
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byte[] IV = new byte[16];
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SecureRandom random = new SecureRandom();
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random.nextBytes(IV);
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Cipher cipher = null;
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try {
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cipher = Cipher.getInstance(AES_CBC_PKCS5PADDING);
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cipher.init(mode, getSecretKeySpec(sKey));
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} catch (Exception e) {
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e.printStackTrace();
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}
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return cipher;
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}
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/**
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* 通过Skey得到秘钥算法对象
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*
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* @param sKey
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* @return
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*/
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private static SecretKeySpec getSecretKeySpec(String sKey) {
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SecretKeySpec key = null;
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try {
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//"AES"：请求的密钥算法的标准名称
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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//256：密钥生成参数；secure random：密钥生成器的随机源
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SecureRandom securerandom = SecureRandom.getInstance("SHA1PRNG");
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securerandom.setSeed(sKey.getBytes());
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kgen.init(256, securerandom);
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//生成秘密（对称）密钥
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SecretKey secretKey = kgen.generateKey();
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//返回基本编码格式的密钥
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byte[] enCodeFormat = secretKey.getEncoded();
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//根据给定的字节数组构造一个密钥。enCodeFormat：密钥内容；"AES"：与给定的密钥内容相关联的密钥算法的名称
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key = new SecretKeySpec(enCodeFormat, "AES");
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//将提供程序添加到下一个可用位置
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Security.addProvider(new BouncyCastleProvider());
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} catch (Exception e) {
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e.printStackTrace();
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}
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return key;
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}
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/**
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* 上传文件加密(传入文件流，输出流对象后直接处理即加密文件流后存储文件)
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*
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* @param inputStream
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* @param outputStream
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* @return
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*/
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public static boolean encryptFile(InputStream inputStream, OutputStream outputStream, String key) {
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try {
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CipherInputStream cipherInputStream = new CipherInputStream(inputStream, getCipher(Cipher.ENCRYPT_MODE, key));
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byte[] cache = new byte[1024];
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int nRead = 0;
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while ((nRead = cipherInputStream.read(cache)) != -1) {
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outputStream.write(cache, 0, nRead);
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outputStream.flush();
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}
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cipherInputStream.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return true;
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}
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/**
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* **上传文件加密(传入字节，加密后返回字节)**
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*
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* @param plainFile
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* @return
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* @throws Exception
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*/
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public static byte[] encryptFile(byte[] plainFile, String key) {
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byte[] cipherText = null;
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try {
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cipherText = getCipher(Cipher.ENCRYPT_MODE, key).doFinal(plainFile);
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} catch (IllegalBlockSizeException | BadPaddingException e) {
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log.error("文件加密失败：" + e);
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}
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return cipherText;
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}
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/**
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* 下载文件解密(传入文件流，输出流对象后直接处理即解密文件流后输出文件)
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*
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* @param inputStream
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* @param outputStream
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* @return
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*/
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public static boolean decryptFile(InputStream inputStream, OutputStream outputStream, String key) {
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try {
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CipherOutputStream cipherOutputStream = new CipherOutputStream(
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outputStream, getCipher(Cipher.DECRYPT_MODE, key));
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byte[] buffer = new byte[1024];
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int r;
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while ((r = inputStream.read(buffer)) >= 0) {
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cipherOutputStream.write(buffer, 0, r);
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}
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cipherOutputStream.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return true;
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}
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/**
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* 下载文件解密(传入字节，解密后返回字节)
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*
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* @param cipherFile
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* @return
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* @throws Exception
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*/
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public static byte[] decryptFile(byte[] cipherFile, String key) {
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byte[] cipherText = new byte[0];
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try {
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cipherText = getCipher(Cipher.DECRYPT_MODE, key).doFinal(cipherFile);
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} catch (IllegalBlockSizeException | BadPaddingException e) {
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log.error("文件解密失败：" + e);
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}
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return cipherText;
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}
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}
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