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Efficient Subversion of Symmetric Encryption with Random Initialization Vector

Authors
Baek, JoonsangYou, Ilsun
Issue Date
Apr-2016
Publisher
Oxford University Press
Keywords
subversion; symmetric encryption; random IV
Citation
IEICE Transactions on Information and Systems, v.E99D, no.4, pp 1251 - 1254
Pages
4
Journal Title
IEICE Transactions on Information and Systems
Volume
E99D
Number
4
Start Page
1251
End Page
1254
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/9222
DOI
10.1587/transinf.2015EDL8224
ISSN
0916-8532
1745-1361
Abstract
This paper presents an efficient subverted symmetric encryption scheme, which outputs a random initialization vector (IV). Compared with the available scheme of the same kind in the literature, our attack provides a saboteur (big brother) with much faster recovery of a key used in a victim's symmetric encryption scheme. Our result implies that care must be taken when a symmetric encryption scheme with a random IV such as randomized CBC is deployed.
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