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» Cryptanalysis of an image encryption scheme
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ESORICS
2009
Springer
14 years 11 months ago
Formal Indistinguishability Extended to the Random Oracle Model
Abstract. Several generic constructions for transforming one-way functions to asymmetric encryption schemes have been proposed. One-way functions only guarantee the weak secrecy of...
Cristian Ene, Yassine Lakhnech, Van Chan Ngo
ICIP
2005
IEEE
15 years 15 days ago
An adaptive DCT-based Mod-4 steganographic method
This paper presents a novel Mod-4 steganographic method in discrete cosine transform (DCT) domain. A group of 2?2 quantized DCT coefficients (GQC) is selected as the valid embeddi...
Xiaojun Qi, KokSheik Wong
ICISC
2009
184views Cryptology» more  ICISC 2009»
13 years 8 months ago
Efficient Privacy-Preserving Face Recognition
Abstract. Automatic recognition of human faces is becoming increasingly popular in civilian and law enforcement applications that require reliable recognition of humans. However, t...
Ahmad-Reza Sadeghi, Thomas Schneider 0003, Immo We...
ACISP
2005
Springer
14 years 4 months ago
Group Signature Where Group Manager, Members and Open Authority Are Identity-Based
We present the first group signature scheme with provable security and signature size O(λ) bits where the group manager, the group members, and the Open Authority (OA) are all id...
Victor K. Wei, Tsz Hon Yuen, Fangguo Zhang
USS
2008
14 years 1 months ago
Digital Objects as Passwords
Security proponents heavily emphasize the importance of choosing a strong password (one with high entropy). Unfortunately, by design, most humans are apparently incapable of gener...
Mohammad Mannan, Paul C. van Oorschot