您提供的次密钥太长或太短。

The secondary key that you supplied is too long or short.

youdao

通过这样一填充，即使我们重用密钥，偷听者在网络上两次看到的数也是不一样的。

If we reused the key, the eavesdropper would likely see a different value placed on the network due to the random padding.

youdao

例如，不会在第一次使用时缺省创建变量和散列密钥。

For example, variables and hash keys won't be created on their first use by default.

youdao