Welcome to the resource topic for 2003/001
Title:
A Mode of Operation with Partial Encryption and Message Integrity
Authors: Philip Hawkes, Gregory G. Rose
Abstract:At the recent AES Modes of Operation Conference, several
modes of operation were proposed for using a block cipher to provide
both confidentiality and authentication. These modes require only a little
more work than the cost of encryption alone, and come with proofs of
security. However, these modes require the entire message to be sent in
encrypted form. This can cause problems in situations where some of the
message neeeds to be sent in plaintext while still being authenticated.
This paper describes a simple variation that allows any choice of message
blocks to be sent in plaintext form rather than in encrypted form. This
mode, Partial Encryption with Message Integrity (PEMI), is shown to
be secure for message integrity and message secrecy.
ePrint: https://eprint.iacr.org/2003/001
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