Encyclopedia of Social Network Analysis and Mining

2018 Edition
| Editors: Reda Alhajj, Jon Rokne

Cryptography and Communications Privacy: An Introduction

  • Gerard Vidal
  • Juan L. Moreno
Reference work entry
DOI: https://doi.org/10.1007/978-1-4939-7131-2_110179

Synonyms

Glossary

The definitions below follow the glossary in RFC 4949 (IETF 2007b) unless marked with (*):
Algorithm

A finite set of step-by-step instructions for a problem-solving or computation procedure, especially one that can be implemented by a computer

Cipher text or ciphertext

Data that has been transformed by encryption so that its semantic information content (i.e., its meaning) is no longer intelligible or directly available

Cipher

A cryptographic algorithm for encryption and decryption

Code

An encryption algorithm based on substitution, i.e., a system for providing data confidentiality by using arbitrary groups (called “code groups”) of letters, numbers, or symbols to represent units of plaintext of varying length (i.e., code words cause substitutions of important terms such as Mr. President with Ms. Bloomfield)

Cryptanalysis

The mathematical science that deals with analysis of a cryptographic system to gain knowledge needed to break or circumvent the...

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Notes

Acknowledgments

The authors would like to thank Dr. Leonor Mendoza for her support, insightful comments, and patient assistance. Juan L. Moreno also thanks James Parish, from the Dickson Poon School of Law at King’s College London, for his thorough review of the first draft of the paper.

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Copyright information

© Springer Science+Business Media LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.EnigmediaMenlo ParkUSA
  2. 2.Dickson Poon School of LawKing’s College LondonLondonUK

Section editors and affiliations

  • Rosa M. Benito
    • 1
  • Juan Carlos Losada
    • 2
  1. 1.Universidad Politécnica de MadridMadridSpain
  2. 2.Universidad Politécnica de MadridMadridSpain