Explain symmetric and asymmetric encryption system, Computer Network Security

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.

Posted Date: 12/3/2013 1:20:33 AM | Location : United States







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