IEICE Transactions on Information and Systems
Online ISSN : 1745-1361
Print ISSN : 0916-8532
Regular Section
Efficient Subversion of Symmetric Encryption with Random Initialization Vector
Joonsang BAEKIlsun YOU
ジャーナル フリー

2016 年 E99.D 巻 4 号 p. 1251-1254


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.

© 2016 The Institute of Electronics, Information and Communication Engineers
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