CEC 304 Data Security and Integrity Exam 2024

About this paper

CEC 304: Second Semester Examination, 27/06/24 (answer all questions), University of Buea: Kerberos KDC/KTC and ticket/authenticator explanations; a Diffie-Hellman exercise among four users; and an ECDSA signature exercise on a second elliptic curve using an HMAC-based hash. A DES initial-permutation/key-schedule exercise (shared input/key with Paper 3); a one-way password-check scheme with hexadecimal passwords and an entropy computation; definitions of the four core security services; and a block-spaced Caesar cipher to decode.