Method and terminal for implementing hot-plug of smart card

A terminal supporting hot-plug, comprising a descrambling library, a smart card driving module, a smart card and a virtual smart card module, wherein:

• the descrambling library is configured to:
• send request information for obtaining a program key to the smart card driving module, receive response information sent by the smart card driving module to obtain the program key, and descramble an encrypted code scream;
• the smart card driving module is configured to:
• after receiving the request information for obtaining the program key sent by the descrambling library, determine whether the smart card is in a plug-in state or a pull-out state,
• when the smart card is in the plug-in state, forward the request information to the smart card, forward the response information returned by the smart card to the descrambling library, and meanwhile forward the response information returned by the smart card to the virtual smart card module to save;
• when the smart card is in the pull-out state, forward the request information to the virtual smart card module, and forward the response information returned by the virtual smart card module to the descrambling library;
• and
• the virtual smart card module is configured to:
• after receiving the response information forwarded by the smart card driving module, save or update the response information, and after receiving the request information forwarded by the smart card driving module, return the saved response information to the smart card driving module,
• after said smart card driving module forwarding the response information to the descramblinq library, the descramblinq library acquiring the program key from the response information and descramblinq an encrypted code stream.