Project(61100201) supported by National Natural Science Foundation of China;Project(12ZZ019) supported by Technology Innovation Research Program,Shang Municipal Education Commission,China;Project(LYM11053) supported by the Foundation for Distinguished Young Talents in Higher Education of Guangdong Province,China;Project(NCET-12-0358) supported by New Century Excellent Talentsin University,Ministry of Education,China
The key exposure problem is a practical threat for many security applications. In wireless sensor networks (WSNs), keys could be compromised easily due to its limited hardware protections. A secure group key managemen...
Supported by the National Natural Science Foundation of China(61100201);the Foundation for Distinguished Young Talents in Higher Education of Guangdong(LYM11053)
The block cipher Threefish is the main component of Skein, which is based on ARX. Based on the efficient algorithms for calculating the differential of modular addition, we extend local collisions of Threefish-256 to ...
Manuscript Received July 2011; Accepted Feb. 2012. This work is supported by the National Natural Science Foundation of China (No.61100201, No.60773092, No.61073149, No. 61133014, No.60973111) and Foundation Distinguished Young Talents in Higher Education of Guangdong (No.LYMl1053).
The security of double-block-length hash functions with rate 1, which are based on a block cipher with a block length of n bits and a key length of 2n bits, was analyzed by Satoh et al. and Hirose. In this paper, we r...