Here are some papers that present a nice introductory material into the field of cryptography and describe why we need cryptography as well as why it is important.
Read the following papers, use your own words and report your understanding and experiences in using cryptography and Cryptosystems. (3 -4 Page Max).

1- Cryptography is harder than it looks by “bruce schneier”.
https://www.schneier.com/essays/archives/2016/03/cryptography_is_hard.html

2- Why Cryptography Is Important.
https://www.ukessays.com/essays/computer-science/why-cryptography-is-important-computer-science-essay.php

3- Importance of cryptography in network security.
https://www.nada.kth.se/kurser/kth/2D1441/semteo03/lecturenotes/rapport_SS-OW_semteo.pdf

Style: APA