空的加密密钥-安全编码

程序应采用不小于8个字节的随机生成的字符串作为密匙。

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);