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Question:
a) Differentiate between ‘Gross Settlement' and ‘Multilateral Net Settlement' providing suitable examples where necessary to support your answer.
b) Differentiate between the symmetric and the asymmetric encryption system providing illustrations where necessary to support your answer.
c) The following technologies can be applied to an e-banking infrastructure to ensure security. Briefly explain the role of each one of them.
(i) SSL (Secure Socket Layer) (ii) Digital Certificate
d) Explain the concept behind digital signature and how it can be used to ensure both authenticity and confidentiality. (Provide suitable illustration to support answer).
Assume that the RSA problem is hard, prove that the RSA encryption is secure against IND- CPA. Provide a game between an adversary A and a simulator (or challenger) B.
Cryptographic algorithms Cryptographic algorithms are broadly classified into two broad categories. They are stated below 1. Symmetric Encryption and 2. Asymmetric Encryptio
(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 (
Assume that a security model is needed for the protection of information in your class. Using the CNSS model, examine each of the cells and write a brief statement on how you would
#questioAn elliptic curve y^2=x^3+ax+b(mod29) includes points P=(7, 15) and Q=(16, 13) a)Determine the equation of the crve b) Determine all values of x for which there is no point
Network security is an issue for companies regardless of whether they participate in electronic commerce; however, since most organizations have a Web site that allows some interac
Deploying Host-Based IDSs -Proper implementation of HIDSs can be painstaking and time-consuming task .The process of deployment begins with implementing most critical systems fi
Symmetric Encryption This encryption method makes use of same “secret key” to encipher and decipher the message and it is termed as private key encryption. This type of encrypti
To master the complexity one must apply the given points. CONCENTRATE IN UNDERSTANDING THE CONCEPTS: Instead of details of wires used to connect computers to a specif
Cipher Methods There are 2 methods of encrypting plaintext: • Bit stream method – every bit in the plaintext bit is transformed into a cipher bit one bit at a time. • Block cip
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