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## Basic Principles

*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/9780199695591.003.0001
- Subject:
- Mathematics, Applied Mathematics

This chapter discusses the basic principles of cryptography. It covers the role of cryptography in securing information; the types of risk to which information is typically exposed; the main security ... More

## Symmetric 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/9780199695591.003.0004
- Subject:
- Mathematics, Applied Mathematics

This chapter discusses symmetric encryption algorithms. It first describes the two major classes of symmetric encryption algorithm, stream ciphers and block ciphers. Simple stream ciphers are fast ... More

## 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

## On the Brink of a Revolution

*Jean-François Blanchette*

### in Burdens of Proof: Cryptographic Culture and Evidence Law in the Age of Electronic Documents

- Published in print:
- 2012
- Published Online:
- August 2013
- ISBN:
- 9780262017510
- eISBN:
- 9780262301565
- Item type:
- chapter

- Publisher:
- The MIT Press
- DOI:
- 10.7551/mitpress/9780262017510.003.0003
- Subject:
- Information Science, Information Science

This chapter focuses on the 1976 publication of Whit Diffie and Martin Hellman’s “New Directions in Cryptography,” which is considers a turning point in the history of cryptographic innovation. It ... More

## The Cryptographic Imagination

*Jean-François Blanchette*

### in Burdens of Proof: Cryptographic Culture and Evidence Law in the Age of Electronic Documents

- Published in print:
- 2012
- Published Online:
- August 2013
- ISBN:
- 9780262017510
- eISBN:
- 9780262301565
- Item type:
- chapter

- Publisher:
- The MIT Press
- DOI:
- 10.7551/mitpress/9780262017510.003.0007
- Subject:
- Information Science, Information Science

This chapter analyzes issues related to the ability of modern cryptography to provide mathematical certification of the effectiveness of cryptosystems. It suggests that the representational nature of ... More

## Quantum Computation

*Cristopher Moore and Stephan Mertens*

### in The Nature of Computation

- Published in print:
- 2011
- Published Online:
- December 2013
- ISBN:
- 9780199233212
- eISBN:
- 9780191775079
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199233212.003.0015
- Subject:
- Physics, Theoretical, Computational, and Statistical Physics

According to the Church-Turing Thesis, a Turing machine, and thus the programming languages and computers in existence, can simulate any reasonable computing device. However, there are physical ... 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

## Theoretical versus Practical Security

*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/9780198788003.003.0003
- Subject:
- Mathematics, Computational Mathematics / Optimization, Logic / Computer Science / Mathematical Philosophy

In this chapter, we consider the relationship between theoretical and practical security of a cryptosystem. The concept of perfect secrecy is introduced, and the one-time pad is exhibited as a ... More

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