A Novel Identification Approach to Encryption Mode of Block Cipher

DOI

10.2991/icsma-16.2016.101How to use a DOI?

Keywords

identification of encryption mode; encryption mode; block cipher; SVM technology

Abstract

Encryption mode describes how a block cipher operates in a cryptosystem and the implementation detail of cryptographic algorithm. In general, the encryption mode of a block cipher is unknown to a cryptanalyst. It plays a significant role in cryptanalysis work on block cipher to identify the encryption mode. In this paper, we propose a novel identification approach to encryption mode of block cipher only with ciphertext information available. Based on the idea of SVM technology, we construct an identification system of encryption mode of block cipher. We can identify the encryption mode with a high identification rate when the key and IV of testing ciphertext files are same as those of training ciphertext files. Even if the keys or IVs of training and testing ciphertext files are different, the identification result is still superior to that of randomly guessing. Furthermore, we find that it is more difficult to identify the encryption mode of AES than DES, Blowfish, 3DES and RC5.

Copyright

© 2016, 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  - Cheng Tan
AU  - Yifu Li
AU  - Shan Yao
PY  - 2016/12
DA  - 2016/12
TI  - A Novel Identification Approach to Encryption Mode of Block Cipher
BT  - Proceedings of the 2016 4th International Conference on Sensors, Mechatronics and Automation (ICSMA 2016)
PB  - Atlantis Press
SP  - 586
EP  - 591
SN  - 1951-6851
UR  - https://doi.org/10.2991/icsma-16.2016.101
DO  - 10.2991/icsma-16.2016.101
ID  - Tan2016/12
ER  -