The Cryptography field

Topic has to be within the Cryptography field.
ANything like block chain ? will it be the future ? this is an example ???
Develop a 3- to 4-page paper detailing the problem addressed in the research paper and the proposed solution. You are encouraged to structure your document in the following format; note that you can outline accordingly depending on your chosen paper.
a. Topic of the paper - 1 short paragraph (2-3 statements)
b. Problem Statement - 1 paragraph
c. Proposed solution as presented in the paper - 1 paragraph
d. Main results - 1 paragraph
e. Limitations or additional future work - 1 paragraph
f. Your opinions, critics and feedbacks on the paper – 4 paragraphs