E-token of the BOC

I applied for an e-token from the Bank of China's online bank yesterday. At first, I thought it was necessary to plug it into the computer. It was only available to the Organization. It turned out to be a dynamic password generator, enter the displayed password.

However, this thing won't communicate with the server, will it? I think it should be a group.AlgorithmAnd time synchronization. It's just that the time difference is several minutes. Will it be normal? So I wrote down the password generated by it in sequence, and then enter the password several minutes ago. The test proves that it was okay four minutes ago, that is, the time difference is about five minutes.

So I thought of a problem. If I knew my online banking account and password, I 'd like to take a look at the dynamic password and remember it silently, then go to the Internet cafe and enter the dynamic password .......