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Understanding Public-Key Infrastructure: Concepts, Standards, and Deployment Considerations
book

Understanding Public-Key Infrastructure: Concepts, Standards, and Deployment Considerations

by Carlisle Adams, Steve Lloyd
November 1999
Intermediate to advanced content levelIntermediate to advanced
320 pages
8h 46m
English
Sams
Content preview from Understanding Public-Key Infrastructure: Concepts, Standards, and Deployment Considerations

Symmetric Versus Asymmetric Ciphers

For as long as humans have communicated, there has been a desire to keep some communications confidential (that is, "hidden") from unintended recipients. Over thousands of years, countless methods for hiding data have been devised. One class of methods attempts to transform the words, letters, or bits to be communicated into something that looks like gibberish rather than a meaningful message. The intended recipient must be able to transform the gibberish back to its original form (in order to read the sender's message), but any other recipient—such as an eavesdropper—should be able to recover nothing more meaningful than the transmitted gibberish.

Two categories of mechanisms exist for performing the transformation ...

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Publisher Resources

ISBN: 157870166XPurchase book