The FCM Scheme for Authenticated Encryption

DOI

10.2991/icmmct-17.2017.223How to use a DOI?

Keywords

Authenticated encryption, compression function, FMAC, Galois/Counter Mode

Abstract

We propose an advanced authenticated encryption with associated data (AEAD) scheme called FCM (compression Function/Counter Mode) based on a compression function required to be a pseudorandom function (PRF) against related key attacks. FCM adopts the stream cipher generated by parallel compression function to encrypt plaintexts, and then utilizes compression Function-based MAC (FMAC) to produce the authentication tag, in which FMAC is a variant of the Merkle-Damgård construction with a permutation. In this structure, FCM successfully avoids introducing the string representing lengths of plaintext and associated data in the generation of the authentication tag, which is a shortage in Galois/Counter Mode (GCM) especially for short message. Then we analyze the security of FCM from two aspects of encryption and authentication based on secure underlying primitives. At last features of FCM are summarized and compared with GCM.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaomei Lei
AU  - ZhongDong Wu
AU  - Jiu Yong
PY  - 2017/04
DA  - 2017/04
TI  - The FCM Scheme for Authenticated Encryption
BT  - Proceedings of the 2017 5th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2017)
PB  - Atlantis Press
SP  - 1123
EP  - 1129
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-17.2017.223
DO  - 10.2991/icmmct-17.2017.223
ID  - Lei2017/04
ER  -