Advanced level 2023 North west regional mock computer science 3
Advanced level 2023 North west regional mock computer science 3
Problem:GTHS Naah is a highly competitive technical high school. Each term, the results of students are published in
the schools notice board. It usually causes discomfort especially to students at the bottom of the class, since the result
sheets contain their full identity (Class, ClassNumber, Name etc.).
A software company has been hired to provide a software solution to this problem. They will do so by implementing a
program/software called “RESULTSOFT”.
They have decided to make use of a Cryptographic Hash function that will generate unique Keys for every student
each term. The keys are associated with their results to form a kcy^value pair and only a student can know their
personal key called “hashCode’’. The hashCode is similar to an ID number because no two students will ever have the
same hashCode in a term.
The hash function takes one input (N) and an arbitrary number and generates many keys.
A sample of the student database which is printed and published as result sheet for 5 students is shown below
Student Database:(Samplc First Te^hi Result Shcct).~
