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(a) Describe DES encryption with a block diagram and brief steps.
(b) How does triple DES improve security. What is the effective key length of triple DES? How can 3DES be compatible with DES?
(c) Describe a one way hash function and give an example. Give essential properties of the hash functions.
(d) Define message authentication. Explain MAC.
(e) Give three known attacks on AES encryption.
project on ensuring data securities on cloud computing
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QUESTION (a) A convex flow problem is a non linear network flow problem. Explain how a convex flow problem could be transformed into a Minimum Cost Flow problem. (b) Exp
what are the participant of marketing channal?
implementing password policy in organisation
Topic -Spam is an ever-growing problem, with some network administrators reporting that 90% or moreof the email delivered to their mail servers is spam. Identify and briefly evalua
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on LAN,where are IP datagrams transported?
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