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» Identity-Based Threshold Decryption
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IACR
2011
115views more  IACR 2011»
12 years 7 months ago
Threshold Encryption into Multiple Ciphertexts
We propose (T, N) multi-ciphertext scheme for symmetric encryption. The scheme encrypts a message into N distinct ciphertexts. The knowledge of the symmetric key allows decryption ...
Martin Stanek
CRYPTO
2009
Springer
172views Cryptology» more  CRYPTO 2009»
14 years 2 months ago
Dual System Encryption: Realizing Fully Secure IBE and HIBE under Simple Assumptions
We present a new methodology for proving security of encryption systems using what we call Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption ...
Brent Waters
EUROCRYPT
2010
Springer
14 years 8 days ago
Public-Key Encryption in the Bounded-Retrieval Model
We construct the first public-key encryption scheme in the Bounded-Retrieval Model (BRM), providing security against various forms of adversarial “key leakage” attacks. In th...
Joël Alwen, Yevgeniy Dodis, Moni Naor, Gil Se...
IJNSEC
2007
107views more  IJNSEC 2007»
13 years 7 months ago
A Traitor Tracing Scheme Based on the RSA System
Traitor tracing schemes constitute a very useful tool against piracy in the context of digital content broadcast. In such multi-recipient encryption schemes, the data-suppliers ca...
Bo Yang, Hua Ma, Shenglin Zhu
AAECC
2006
Springer
77views Algorithms» more  AAECC 2006»
13 years 7 months ago
Protecting against key-exposure: strongly key-insulated encryption with optimal threshold
A new framework for protection against key exposure was recently suggested by Dodis et. al. [16]. We take its realization further towards practice by presenting simple new schemes...
Mihir Bellare, Adriana Palacio