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CJ
2006
123views more  CJ 2006»
15 years 4 months ago
Unconditionally Secure Anonymous Encryption and Group Authentication
Anonymous channels or similar techniques that can achieve sender's anonymity play important roles in many applications. However, they will be meaningless if cryptographic prim...
Goichiro Hanaoka, Junji Shikata, Yumiko Hanaoka, H...
PERCOM
2008
ACM
15 years 4 months ago
Randomized Bit Encoding for Stronger Backward Channel Protection in RFID Systems
In this paper, we introduce a randomized bit encoding scheme that can strengthen the privacy protection on RFID tags. This scheme is used together with the backward channel protec...
Tong-Lee Lim, Tieyan Li, Sze-Ling Yeo
TCOM
2008
101views more  TCOM 2008»
15 years 4 months ago
Transmit beamforming for space-frequency coded MIMO-OFDM systems with spatial correlation feedback
Abstract--This paper addresses the problem of joint optimization of transmit beamforming and space-frequency (SF) coding for MIMO-OFDM systems with spatial correlation feedback in ...
Ahmed K. Sadek, Weifeng Su, K. J. Ray Liu
EUROCRYPT
2012
Springer
13 years 7 months ago
Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption
This paper proposes the first inner product encryption (IPE) scheme that is adaptively secure and fully attribute-hiding (attribute-hiding in the sense of the definition by Katz...
Tatsuaki Okamoto, Katsuyuki Takashima
PERCOM
2004
ACM
16 years 4 months ago
Supporting Persistent Social Groups in Ubiquitous Computing Environments Using Context-Aware Ephemeral Group Service
In this paper, we analyze the role of the social group in a Ubiquitous Computing (Ubicomp) environment as a source of contextual information. A model is presented to address the s...
Bin Wang, John Bodily, Sandeep K. S. Gupta