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Defining moment.

YOU GET AN e-mail from a trusted associate with vital information about an upcoming corporate deal. How do you know that it's truly from your associate and that the message has not been tampered with?

A computerized function helps you find out. This function distills the text of an e-mail into a set of numbers before an e-mail message is encrypted.

Then, when the message is received, the recipient's computer decrypts the message and distills the e-mail into numbers again. It then automatically compares the numbers. If they match, the message has not been tampered with; if they don't, then the received message is not the same as the original version.

What is this function called?

Hint: Think of a common type of breakfast potatoes.

ANSWER: Hashing.
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Title Annotation:hashing for e-mail security
Author:Piazza, Peter
Publication:Security Management
Article Type:Brief Article
Geographic Code:1USA
Date:Oct 1, 2005
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