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Question:
a) Explain what the following intermediate systems are and how they work?
i. Repeater ii. Bridge
b) A service is formally specified by a set of primitives (operations) available to a user or other entity to access the service.
i. Examine the differences between connection-oriented service and connectionless-oriented service.
ii. How is a reliable service determined?
Transposition technique
attacks on crytography
Q. Develop a completely secure WSN based on the triple key? Wireless network is the most vulnerable type of network to security attack. Unauthorized access to wireless network
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
implementing password policy in organisation
Problem 1 Solve the following Caesar cipher by showing your working: EM KIUM EM AIE EM KWVYCMZML Problem 2 Compare and contrast between block and stream ciphers, listin
Innovative nature of triple key management The triple key management scheme provides secure services by combining different techniques whic contribute to the security and priv
FRAGMENTATION Fragmentation information is kept in different extension header. Every fragment has base header and fragmentation header. Whole datagram including original hea
A digital signature is a stamp on the data, which is unique and very hard to forge. A digital signature has 2 steps and creates 2 things from the security perspective. STEP 1
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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