Abstract
In 1999, Liaw proposed a new broadcasting cryptosystem, which requires smaller bandwidth as compared to the previously proposed broadcasting cryptosystems. However, this article will show that the proposed system is insecure enough by presenting a conspiracy attack on it. We will also point out some ambiguous problems in Liaw's paper. Moreover, we propose an improved broadcasting cryptosystem, which is a slight modification of the proposed system to overcome the conspiracy attack.
Original language | English |
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Pages (from-to) | 1575-1578 |
Number of pages | 4 |
Journal | Computers and Mathematics with Applications |
Volume | 41 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2001 Jun |
All Science Journal Classification (ASJC) codes
- Modelling and Simulation
- Computational Theory and Mathematics
- Computational Mathematics