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Question 1:
(a) Differentiate between symmetric and asymmetric encryption system.
(b) Describe how a digital signature is created.
(c) Explain briefly what SSL (secure socket layer) is and how it can be applied to e_banking services to ensure security.
(d) Explain the steps involved in a SET(Secure Electronic Transaction.
(e) In cryptography explain the following: (i) Authentication. (ii) Non-repudiation. (iii) Confidentiality. (iv) Integrity.
Question 2:
(a) Outline the main difference between a credit card and a debit card as a payment instrument.
(b) Outline the role of the credit card Gateway and list down the steps involved when payment is processed via the payment gateway.
(c) Outline briefly how biometric systems work and give four examples of biometric measurements that can be used to identify a person.
(d) Outline the importance of backup, recovery and business continuity procedures in an e_banking environment.
(e) Outline briefly the following electronic payment methods:
(i) E_Wallet. (ii) Smart Card.
(a) Explain the two possible configuration for 3DES. (b) What is the main disadvantage of 3DES? (c) Why are most modern symmetric algorithm block ciphers? (d) Describe
Question: (a) Explain how the Diffie-Hellman key establishment protocol works. (b) Prove that the Diffie-Hellman key establishment protocol is vulnerable to a `man in the mi
TRANSPORT PROTOCOLS: Give application-to-application communication. Require extended addressing mechanisms to check applications. Are known end-to-end communicatio
IPv6 ADDRESSING IPv6 has 128-bit addresses. A 128-bit address adds network prefix and host suffix. An benefit of IPv6 addressing is that there is address classes i.e. prefix/s
Question 1 Explain any two types of security policies Question 2 What is security attack? Explain with examples Question 3 Explain different characteristics that i
Broadcasting is the distribution of video and audio content to a whole audience via any audio or visual mass communications medium, but generally one using electromagnetic radiat
(a) Explain the importance of the Euler Totient function in Cryptography. Calculate Euler Totient function value, φ(1280). (b) Explain the role of the Authentication Server (
which is best algorithm
FRAGMENT IDENTIFICATION: IDENT field in every fragment matches IDENT field in real datagram. Fragments from different datagrams may arrive out of order and still be saved out.
Attacks on Cryptosystems Attacks are attempts to achieve unauthorized access to secure communications have characteristically used brute force attacks. Attacker may alternatively
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