The birthday attacks are called so because we can only have 365 birthdays (oh well, excluding 2/29). So, if there are 366 people in a place at least two of them have the same birthday - thus causing collision(s). Same things happens in hash algorithm. The people in birthday attack is the same thing as:. 1. hash in the hash algorithm. 2. input in the hash algorithm. 3. the algorithm in hash algorithm. 4. the key

How can you know if the person or organization providing the information has the credentials and knowledge to speak on this topic? one clue is the type of web site it is--the domain name ".org" tells you that this site is run by a nonprofit organization.

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health? a. air quality data gathered by new instruments can be used to reduce exposure to pollutants. b. new technologies enable natural and human-made pollution sources to be located and monitored. c. air quality data gathered by new instruments can be used to predict trends in pollution over time. d. new technologies allow governments to make informed decisions about the regulation of pollution. (choose more than one)

Match the items with their respective descriptions.