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design a symmetric graphiteepoxy cross-ply sublaminate such that the thermal expansion coefficient in the x-direction
a simply supported laminated composite beam figure 66 made of glassepoxy is 75 mm long and has the layup of plusmn304 a
1 create an attack tree for sending e-mail as someone else here the attacker goal is to convince an e-mail recipient
write a program that experimentally demonstrates the compleshymentation property for des this program should take as
suppose you have a processor that can perform a single des encryption or decryption operation in 2-26 seconds suppose
1 what are the possible lengths for aes keys for each key length how many rounds are in aes what is the aes block size2
1 how much space would be required to store a table for an entire idealized block cipher that operates on 64-bit blocks
1 suppose a chosen-ciphertext attacker cannot recover the secret decryption key for an encryption scheme does this mean
1 consider a group of 30 people who wish to establish pair-wise secure communications using symmetric-key cryptography
provide a concrete example selected from media reports or your personal experiences in which attackers compromised a
find a new product or system that manipulates secret data this might be the same product or system you analyzed for
for your platform language and cryptography library of choice summarize how the cryptographic pang works internally
implement a naive approach for generating random numbers in the set 0 1 191 for this naive approach generate a random
suppose message a is one block long suppose that an attacker has received the mac i for a using ci3c-mac under some
1 describe how each of the issues in section 83 applies to your personal computers hardware and software configuration2
1 investigate the random number generators built into three of your favorite programming languages would you use these
1 in our design of a secure channel we said that the message numbers must not repeat what bad things can happen if the
find a new product or system that uses or should use a secure channel this might be the same product or system you
1 modify the algorithms for the secure channel in this chapter to use the a dedicated single-key mode for providing
investigate how private keys are stored with gnu privacy guard gpg write a program that given a stored encrypted gpg
investigate how login passwords are stored on your machine write a program that given a stored encrypted or hashed
1 what bad things could happen if alice uses the same keys with multiple pkis2 suppose a system employs devices that
suppose a system uses a pki with a crl a device in that system is asked to verify a certificate but cannot access the
compare and contrast the advantages and disadvantages of crls fast revocation and online certificate verification
1 what fields do you think should appear in a and why2 what are the roof sse keys hard-coded within your web browser