Communication Theory of Secrecy Systems

Last updated
Communication Theory of Secrecy Systems
Author Claude E. Shannon
LanguageEnglish
Subject Cryptography
Publication date
1949
Publication placeUnited States

"Communication Theory of Secrecy Systems" is a paper published in 1949 by Claude Shannon discussing cryptography from the viewpoint of information theory. [1] It is one of the foundational treatments (arguably the foundational treatment) of modern cryptography. [2] His work has been described as a "turning point, and marked the closure of classical cryptography and the beginning of modern cryptography." [3] It has also been described as turning cryptography from an "art to a science". [4] It is also a proof that all theoretically unbreakable ciphers must have the same requirements as the one-time pad.

Contents

The paper serves as the foundation of secret-key cryptography, including the work of Horst Feistel, the Data Encryption Standard (DES), Advanced Encryption Standard (AES), and more. [5] In the paper, Shannon defined unicity distance, and the principles of confusion and diffusion, which are key to a secure cipher. [6]

Shannon published an earlier version of this research in the formerly classified report A Mathematical Theory of Cryptography, Memorandum MM 45-110-02, Sept. 1, 1945, Bell Laboratories. [7] [8] This report also precedes the publication of his "A Mathematical Theory of Communication", which appeared in 1948.

See also

Notes

  1. ↑ Shannon, "Communication Theory of Secrecy Systems," p. 656.
  2. ↑ Shimeall, Timothy J.; Spring, Jonathan M. (2013). Introduction to Information Security: A Strategic-Based Approach. Syngress. p. 167. ISBN   978-1597499699.
  3. ↑ Koç, Çetin Kaya; Özdemir, Funda (2023). "Development of Cryptography since Shannon" . Handbook of Formal Analysis and Verification in Cryptography: 1–56. doi:10.1201/9781003090052-1. ISBN   978-1-003-09005-2.
  4. ↑ Zheng, Zhiyong (2022). Modern Cryptography Volume 1: A Classical Introduction to Informational and Mathematical Principle. Financial Mathematics and Fintech. Singapore: Springer Singapore. pp. vi. doi:10.1007/978-981-19-0920-7. ISBN   978-981-19-0919-1.
  5. ↑ Koç, Çetin Kaya; Özdemir, Funda (2023). "Development of Cryptography since Shannon" (PDF). Handbook of Formal Analysis and Verification in Cryptography: 1–56. doi:10.1201/9781003090052-1. ISBN   978-1-003-09005-2.
  6. ↑ Banerjee, Santo, ed. (2011). Chaos Synchronization and Cryptography for Secure Communications: Applications for Encryption. Hershey, PA: Information Science Reference. p. 362. ISBN   978-1-61520-737-4. OCLC   495781438.
  7. ↑ A Mathematical Theory of Cryptography
  8. ↑ Bibliography of Claude Elwood Shannon

References


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.