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Answer the following in relation to a scenario where Bob and Alice use Kerberos for mutual authentication:
a. When Bob receives a ticket from Alice, how does he know it is genuine?
b. When Bob receives a ticket from Alice, how does he know it came from Alice?
c. Alice receives a reply, how does she know it came from Bob (that it is not a reply of an earlier message from Bob)?
d. What does the ticket contain that allows Alice and Bob to talk securely?
Implement both encryption AND decryption of the Vigenere cipher with 26 English letters and 1 space character
Express the Shannon-Hartley capacity theorem in terms of where is the Energy/bit and is the psd of white noise.
Implement buffer overflow in c++ And attacking the devises by doing buffer overflow.
confidentiality, integrity and availability, trojan horse, Compress the data, Caesar cipher, rail fence cipher, PGP operation, network perimeter, MSFT, RSA cryptosystem
Program "Encryption/Decryption"system only the code by using C programming work with PUTTY use Caesar cipher.
Known risks of the UNIX password system, it has been recommended that the system be replaced by an alternative system that uses public key cryptography, RSA for example. How might the system derive the secret key for DES from the user's login pas..
Why would a variation of RSA encryption/decryption where a single prime number is used the modolus insecure? How can someone recover a message x from the encrypted value.
Based on the article by Lenning (2005), determine a primary security risk that users must acknowledge when using macros? Why is it significant to educate users of these risks once their dilemma is resolved?
block cipher and a stream cipher, Caesar cipher, cryptanalytic attacks, mono alphabetic cipher and a poly alphabetic cipher, Mix Columns, Add Round key, PGP services, traffic padding, contrast link and end-to-end encryption
Show a message that Alice may have spoofed, and demonstrate that its hash value collides with Bob's original hash.
Give the security levels Top SECRET,SECRET,CONFIDENTIAL, and UNCLASSIFIED (order from highest to lowest), and catergories A, B,C, specify what type of access (read,write, both or neither) is allowed in each of the following situations .
Determine how much time, if any, these two employees are spending surfing the Web. Is it wrong to access these records? Do some research on workplace privacy laws to justify your answer.
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