Question

Which is the largest disadvantage of symmetric Encryption?

(a) More complex and therefore more time-consuming calculations

(b) Problem of the secure transmission of the Secret Key

(c) Less secure encryption function

(d) Isn’t used any more

I have been asked this question in exam.

I need to ask this question from Encryption and Its Applications in portion Database Programming Techniques of Database Management

Answer 1

Right choice is (b) Problem of the secure transmission of the Secret Key

The best I can explain: As there is only one key in the symmetrical encryption, this must be known by both sender and recipient and this key is sufficient to decrypt the secret message. Therefore it must be exchanged between sender and receiver in such a manner that an unauthorized person can in no case take possession of it.