关于Linux操作系统下AES解密失败的异常如下:
javax.crypto.BadPaddingException: Given final block not properly padded. Such issues can arise if a bad key is used during decryption.
由于windows上每次生成的key都相同,但是在solaris或部分linux系统上则不同,所以造成解密失败
解决方法如下:
经过检查之后,定位原来在生成KEY的方法上,如下: view plain public static SecretKey getKey (String strKey) { try { KeyGenerator _generator = KeyGenerator.getInstance( "AES" ); _generator.init(128 , new SecureRandom(strKey.getBytes())); return _generator.generateKey(); } catch (Exception e) { throw new RuntimeException( " 初始化密钥出现异常 " ); } } 修改到如下方式,问题解决:
view plain public static SecretKey getKey(String strKey) { try { KeyGenerator _generator = KeyGenerator.getInstance( "AES" ); SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" ); secureRandom.setSeed(strKey.getBytes()); _generator.init(128 ,secureRandom); return _generator.generateKey(); } catch (Exception e) { throw new RuntimeException( " 初始化密钥出现异常 " ); } }