Supported by the National Natural Science Foundation of China (Grant No. 60673072);the National Basic Research Program of China(Grant No. 2007CB311201)
In this paper, we examine the security of reduced AES-192 and AES-256 against related-key rectangle attacks by exploiting the weakness in the AES key schedule. We find the following two new attacks: 9-round reduced A...
supported by the National Natural Science Foundation of China (60673072, 60803149);the National Basic Research Program of China (2007CB311201)
Proxy signature is an important cryptographic primitive and has been suggested in numerous applications, Tne revocation oI delegated rights is an essential issue of the proxy signature schemes. In this article, a secu...