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Public-Key Encryption

Keith M. Martin

in Everyday Cryptography: Fundamental Principles and Applications

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199695591
eISBN:
9780191774898
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199695591.003.0005
Subject:
Mathematics, Applied Mathematics

This chapter discusses public-key encryption. It first explains the motivation for public-key encryption and identifies some of the problems that need to be solved before it can be used effectively. ... More


Secrets

Lance Fortnow

in The Golden Ticket: P, NP, and the Search for the Impossible

Published in print:
2017
Published Online:
May 2018
ISBN:
9780691175782
eISBN:
9781400846610
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691175782.003.0008
Subject:
Computer Science, Programming Languages

This chapter analyzes how, in 1976, Whitfield Diffie and Martin Hellman suggested that one could use NP to hide one's own secrets. The field of cryptography, the study of secret messages, changed ... More


Theoretical versus Practical Security

Keith M. Martin

in Everyday Cryptography: Fundamental Principles and Applications

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199695591
eISBN:
9780191774898
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199695591.003.0003
Subject:
Mathematics, Applied Mathematics

This chapter discusses the differences between providing security in theory and in practice. It introduces the concept of perfect secrecy, which is in some sense the best security that a cryptosystem ... More


Basic Principles

Keith M. Martin

in Everyday Cryptography: Fundamental Principles and Applications

Published in print:
2017
Published Online:
July 2017
ISBN:
9780198788003
eISBN:
9780191829956
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198788003.003.0001
Subject:
Mathematics, Computational Mathematics / Optimization, Logic / Computer Science / Mathematical Philosophy

This chapter serves as an introduction to the environment in which cryptography finds common use today. We discuss the need for cryptography, as well as the basic language and concepts that are used ... More


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