AES加密和解密,key需要32位
package com.example.core.mydemo.sign; 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; /** * 加密后字符串为str:XDUWkZ088cmXUGohYxGZ3g== * 解密后字符串为str2:hello world */ public class AesEncryptTestUtils { private static Logger logger = LoggerFactory.getLogger(AesEncryptTestUtils.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); } public static void main(String[] args) throws Exception{ try { //key需要32位 String key = "1234567890tkltktqVdTstvuhlZHTest"; String str = aesEncryptContent("hello world", key); System.out.println("加密后字符串为str:"+str); String str2 = aesDecryptContent(str, key); System.out.println("解密后字符串为str2:"+str2); } catch (Exception e) { e.printStackTrace(); } } }
标签:AES,return,String,32,static,key,加密 From: https://www.cnblogs.com/oktokeep/p/17517629.html