The main weakness of symmetric encryption is:

  1. it is too slow
  2. it cannot encrypt text
  3. the secret key must be shared safely
  4. it uses two keys
Answer

C) the secret key must be shared safely

Both sides need the same key, so key distribution is the problem. SLO CS-11-A-04

Computer Science MCQ · More Unit 1: Computer Systems MCQs · Practise