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Actually, I took this question from Matt Bishop's Introduction to Computer Security. The answer can be in any format but is preferred if it is short in points.
"The designers of the UNIX password algorithm used a 12-bit salt to perturb the first and third sets of 12 entries in the E-table of the UNIX hashing function (the DES). Consider a system with 224 users. Assume that each user is assigned a salt from a uniform random distribution and that anyone can read the password hashes and salts for the users.
What is the expected time to find all users' passwords using a dictionary attack?
Assume that eight more characters were added to the password and that the DES algorithm was changed so as to use all 16 password characters. What would be the expected time to find all users' passwords using a dictionary attack?
Assume that the passwords were eight characters long but that the salt length was increased to 24 bits. Again, the salts (and the corresponding algorithms) are known to all users. What would be the expected time to find all users' passwords using a dictionary attack?"
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?
What password protection measures are normally implemented by system administrators, operating systems, and security services? Describe the pros and cons of enabling audits of resource accesse
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
honeypot or a firewall, error handling, Denial-Of-Service, Public Key Infrastructure, WLAN Administrator, WEP Protocol, RSA Algorithm, Network Engineer
confidentiality, integrity and availability, trojan horse, Compress the data, Caesar cipher, rail fence cipher, PGP operation, network perimeter, MSFT, RSA cryptosystem
Concur with, dispute, or qualify following statement: "The strong ciphers produced by Enigma machine are result of complex mathematical trapdoor functions used to encrypt messages."
How will your company ensure adequate destruction of the materials thus ensuring an individual's privacy? Will any state-wide, national, or industry standards be met? If so, which ones and how?
Dissect an email you have received. First, get the original, ASCII text of the email, including the headers, and the blank line separating the headers and the body of the email.
Read and summarize "Big iron lessons, Part 5: Introduction to cryptography, from Egypt through Enigma"
How does RTSP differ from HTTP (a) in maintaining client state information; (b) in terms of in-band, out-of-band traffic?
Single Sign On (SSO), Single Sign On (SSO), netstat -an, arp -a, ipconfig /displaydns, MS Config. Means, MS Config. Means, network reconnaissance
What technology and cost-of-use issues are associated with a client-dominant local area network? Think about what happens as the network grows in size.
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