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Question:
(a) Distinguish between Steganograhy and Cryptography.
(b) "Playfair cipher is more secure than Monoalphabetic cipher." Justify this statement.
(c) Various applications compress data before sending it across a network. If compression and encryption are both to be applied to a document before it is transmitted, does it matter which is done first? Why?
(d) A compressed data file has many of the attributes of an encrypted data file. In what way are they similar? Is compression a form of encryption, or could it be used as such? Why, or why not?
(e) Describe Triple DES. Is it secure? Why is it not the standard replacement for DES?
(f) Give two examples of passive attacks.
Access Controls Access controls addresses admission of a user into a trusted area of organization. It comprises of a combination of policies & technologies. The ways to control
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Gateways They transfer packets among network machines that have different protocols (e.g. between a WAN and a LAN). They access a packet formatted for one protocol and change
Social Network development in Java: Project Title: SUGGESTLOCAL (Nov 2006-April 2007) Role : Developer Domain : Social Network Client :
(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
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i want to know about cloud computing server security infrastructure development process
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