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As the new network administrator, one of your first responsibilities is to draft a network security policy plan that employees must sign and follow when using the company's network.
Both IPsec and SSL provide encrypted network communication, but at different layers in the Internet protocol stack, and for different purposes. Compare and contrast these two protocols, and describe the secure communication scenarios they are best..
Question on Security infrastructure and protocols
Explain the different roles between hashing and message authentication codes (MAC). Can a good hash function serve as a good MAC, and vice versa?
Think about two substitution ciphers. One adds a value of i to the ASCII code of the plain text character. The other adds a price of j to the plaintext character. All additions are modulo 256.
Write a report on DENIAL OF SERVICE (DoS).
you have been asked to help decide whether to outsource security or keep the security function within the firm. search
describe the fundamental principles in both the bell-lapadula and biba security models. for each explain what sort of
when applying cryptography determine why securing the key is more important than securing plaintext or ciphertext.
Generates an alternative message that has a hash value that collides with Bob's original hash value. Show a message that Alice may have spoofed, and demonstrate that its hash value collides with Bob's original hash."
Decrypt to recover the plaintext. What is the decryption function, and the recovered plaintext? What type of cipher is this?
Assume the sqquence number space is of size k. Determine the largest allowable sender window which will avoid the happening of problems of these protocols?
Write down 200- to 300-word response which answers the following question: Based on article by Lenning (2005), what is main security risk which users must acknowledge when using macros?
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