. The lifespan of master key is usually longer than that of session key. ( )
举一反三
- The lifespan of session key is usually longer than that of master key. ( )
- The lifespan of session key is longer than that of master key. ( )
- Master key, secondary key and primary key are all can be used to encrypt file or communication.
- If students can not understand and master key points, teachers should give up key points.
- I lost my key. I’ll have to have another key ____________(make).