Java对称加解密算法AES
代码语言：javascript复制import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
/**
* 敏感加密入参出参字段工具类
*/
public class AesEncryptUtils {
private static Logger logger = LoggerFactory.getLogger(AesEncryptUtils.class);
private static final String AES_ALG = "AES";
/**
* AES算法
*/
private static final String AES_CBC_PCK_ALG = "AES/ECB/PKCS5Padding";
public static final String CHARSET_UTF8 = "UTF-8";
/**
* AES加密
*
* @param srcContent
* @return
* @throws Exception
*/
public static String aesEncryptContent(String srcContent,String AES_KEY) {
try{
//如果为空不加密
if(StringUtils.isEmpty(srcContent)){
return srcContent;
}
String aesStr = aesEncrypt(srcContent,AES_KEY,CHARSET_UTF8);
return aesStr;
}catch (Exception e){
logger.error("AES加密失败,srcContent为{}",srcContent);
throw new RuntimeException("AES加密失败");
}
}
/**
* AES解密
*
* @param aesContent
* @return
* @throws Exception
*/
public static String aesDecryptContent(String aesContent,String AES_KEY){
String srcStr = "";
try{
//如果为空不加密
if(StringUtils.isEmpty(aesContent)){
return aesContent;
}
srcStr = aesDecrypt(aesContent,AES_KEY,CHARSET_UTF8);
}catch (Exception e){
logger.error("AES解密失败,aesContent为{}",aesContent);
}
return srcStr;
}
/**
* AES加密
*
* @param content
* @param aesKey
* @param charset
* @return
*/
private static String aesEncrypt(String content, String aesKey, String charset)
throws Exception {
Cipher cipher = Cipher.getInstance(AES_CBC_PCK_ALG);
cipher.init(Cipher.ENCRYPT_MODE,
new SecretKeySpec(aesKey.getBytes(), AES_ALG));
byte[] encryptBytes = cipher.doFinal(content.getBytes(charset));
return new String(Base64.encodeBase64(encryptBytes));
}
/**
* AES解密
*
* @param content
* @param key
* @param charset
* @return
*/
private static String aesDecrypt(String content, String key, String charset)
throws Exception {
Cipher cipher = Cipher.getInstance(AES_CBC_PCK_ALG);
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key.getBytes(),
AES_ALG));
byte[] cleanBytes = cipher.doFinal(Base64.decodeBase64(content.getBytes()));
return new String(cleanBytes, charset);
}
/**
* 手机号加密后字符串为str:OgB897 iuJYjuw4H1Ou3xw==
* 手机号解密后字符串为str2:19966667777
* 姓名加密后字符串为str:rfGUZPPHuG91j/cEjJJbOA==
* 姓名解密后字符串为str2:张三
* 身份证号加密后字符串为str:UCK1di7NzzjjjNAGZMg2iS/c6jnEv0fips1zo7ww4RQ=
* 身份证号解密后字符串为str2:463300122545556699
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception{
try {
//注意：密钥需要32位
String key = "testkey111testkey111testkey11132";
String str = aesEncryptContent("19966667777", key);
System.out.println("手机号加密后字符串为str:" str);
String str2 = aesDecryptContent(str, key);
System.out.println("手机号解密后字符串为str2:" str2);
str = aesEncryptContent("张三", key);
System.out.println("姓名加密后字符串为str:" str);
str2 = aesDecryptContent(str, key);
System.out.println("姓名解密后字符串为str2:" str2);
str = aesEncryptContent("463300122545556699", key);
System.out.println("身份证号加密后字符串为str:" str);
str2 = aesDecryptContent(str, key);
System.out.println("身份证号解密后字符串为str2:" str2);
} catch (Exception e) {
e.printStackTrace();
}
}
}
