硬编码加密密钥-修复建议

程序应采用不小于8个字节的随机生成的字符串作为密钥。

KeyGenerator keyGen = KeyGenerator.getInstance("AES");    
keyGen.init(128, new SecureRandom(password.getBytes()));    
SecretKey secretKey = kgen.generateKey();    
byte[] keyBytes = secretKey.getEncoded();    
SecretKeySpec key = new SecretKeySpec(keyBytes, "AES");  
Cipher encryptCipher = Cipher.getInstance("AES");  
encryptCipher.init(Cipher.ENCRYPT_MODE, key);