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Integrity-Aware PCBC Encryption Schemes

  • Virgil D. Gligor
  • Pompiliu Donescu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1796)

Abstract

Traditional encryption schemes, such as Cipher Block Chaining (CBC), are unable to detect integrity violations caused by adaptive chosen-message (i.e., chosen-plaintext and ciphertext) attacks when used with typical non-cryptographic Manipulation Detection Code (MDC) functions, such as bitwise exclusive-or, modular addition, CRC-32, and quadratic checksums. In this paper, we define secure Plaintext-Ciphertext Block Chaining (PCBC) schemes that detect such violations at a low performance cost, thereby preserving both message secrecy and integrity against chosen-message attacks. We present the salient properties of these schemes, their security, and preliminary performance measurements.

Keywords

Encryption Scheme Block Cipher Message Authentication Code Message Size Pseudorandom Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Virgil D. Gligor
    • 1
  • Pompiliu Donescu
    • 1
  1. 1.VDG Inc.Chevy ChaseUSA

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