We would like to protect biometric data used for authentication because, once compromised, it is compromised forever. Explain why one must use reversible encryption, and not a cryptographic hash, to store biometric information. (Adapted from Computer Security by Goodrich and Tamassia.) Suppose you have a computer that can make 1050 guesses per second against against a 256-bit binary combination like the lock in Part 6. About how many years will it take to try half the combinations? You may express the answer as a power of ten. Google is your friend when you need to do arithmetic like this. Just type an expression into Google and you'll get an answer. Exponentiation is represented by ^ so 1050 is 10^50.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer: chicken nuggets.

explanation:

answer: copyright is extremely important to authors because it constitutes the ownership of one's original work. having ownership means you can protect your work as intellectual property and control who makes money from it—which is you and those to whom you assign rights.

answer:

a

explanation:

it a unlucky day