Skip to main content

Symmetric Cryptosystem

  • Reference work entry
  • 348 Accesses

Synonyms

Classical cryptosystem; Conventional cryptosystem; Private key cryptosystem; Secret key cryptosystem

Related Concepts

Asymmetric Cryptosystem; Block Ciphers; MAC Algorithms; Stream Cipher

Definition

In a symmetric cryptosystem, the same key is employed for each of the operations in the cryptosystem (e.g., encryption and decryption), and thus that same key, typically a secret, must be shared by the parties performing the various operations.

Applications

Symmetric cryptosystems are widely employed; see the related concepts for specific examples.

This is a preview of subscription content, log in via an institution.

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD   799.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD   949.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Learn about institutional subscriptions

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2011 Springer Science+Business Media, LLC

About this entry

Cite this entry

Kaliski, B. (2011). Symmetric Cryptosystem. In: van Tilborg, H.C.A., Jajodia, S. (eds) Encyclopedia of Cryptography and Security. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-5906-5_438

Download citation

Publish with us

Policies and ethics