Answer Happy

A well-known university is considering investing in an
online system that would allow students to share their degree
transcript with future employers. The system will publish encrypted
details of each student’s transcript to a webpage unique to that
student. The student will be given a public key by the University
that will unencrypt their transcript when a user navigates to the
webpage (they can share the key with employers), while the
University will retain the private key in case the transcript needs
updating in the future (for example if the student studies a
further degree). Explain how, as well as ensuring the transcript
data is protected from casual browsing, the University could make
use of public / private key pairs to enable the ownership and
validity of the transcript data to be proved by the end user. You
may find it helpful to draw a diagram of the data exchange to
illustrate your answer.