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IAPM (mode)

Authenticated encryption mode for block ciphers

IAPM (mode)
Summary

Authenticated encryption mode for block ciphers

Integrity-aware parallelizable mode (IAPM) is a mode of operation for cryptographic block ciphers. As its name implies, it allows for a parallel mode of operation for higher throughput.

Charanjit Jutla's hand-drawn IAPM figure in IBM Technical Notebook (Oct 2000)

Encryption and authentication

At the time of its creation, IAPM was one of the first cipher modes to provide both authentication and privacy in a single pass.{{cite journal

IAPM was proposed for use in IPsec.

Other AEAD schemes also provide all of the single pass, privacy and authentication properties. IAPM has mostly been supplanted by Galois/counter mode.

References

References

  1. "OCB: Background (What did Jutla do?)".
  2. Jutla, C. S.. (November 2000). "A Parallelizable Authenticated Encryption Algorithm for IPsec". IETF.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

block-cipher-modes-of-operation authenticated-encryption-schemes
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