University of Wollongong (UOW) Questions

5. In a mobile roaming system, there are three entities: a mobile user U, its home server H, and a foreign server V. The mobile…

4. Alice and Bob are employees residing in two dispersed branches, D1 and D2, of the same company. They want to secure all the communications…

1. Consider the following key exchange protocol which is a variant of the Diffie-Hellman protocol. Each user P has a secret key sk_P=x_P and public key pk= gx_P mod p.1: A  B: gr_A mod p2: B  A: gr_B mod p In the protocol, r_A and r_B are randomly chosen in each session by A and B. The shared key for communication is defined as K = gr_Ax_B + gr_Bx_A mod p. a) Show the key derivation formulas of User A and User B (i.e., how does eachuser compute the shared key?) b) Does the man-in-the-middle attack against the textbook Diffie-Hellman protocol work against the above protocol? Justify your answer. c) Does the protocol provide Forward Secrecy? Justify your answer. cta_question_1 2. Two questions related to the A1. For each question, you should use one sentence to highly summarize the…

Task 1: DNS configuration Create the DNS zone file for the new zone “myuni.edu.au’ and its reverse zone file. The new domain will occupy the…

Choose one of the Knowledge-based systems that you have learned and write an essay about its applications in one or more sectors of your choice.…

Task 1 Consider the relational schemas are given below and the respective sets of functional dependencies valid in the schemas. (i) Find all the minimal…

Task 1 Consider the following conceptual schema of an operational database owned by a multinational real estate company. The database contains information about the real…

Task Requirements A) Upon startup, the program should prompt user to enter a 'configuration' filename. The program then proceeds to read the contents (of the…

Aims: 1. To gain a basic familiarity with some security concepts, and with classical ciphers, including statistical methods for cryptanalysis of them. 2. To become…

Task 1. Cryptanalysis Let 𝐸𝑛𝑐 be an encryption algorithm based on a one-way function 𝐹 , and 𝑟 a shared secret key between the sender…

Subject: Current Issues in Management 1:You critically evaluate the advantages and disadvantages of digital marketing. Illustrate your answer with HK business examples. (15 marks) 2.For…

Task 1 Background A departmental store issues in-store-credit-card to facilitate and encourage customers to make more purchases in the store. The in-store-credit-card is available to…