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PQCRYPTO
2010
250views Cryptology» more  PQCRYPTO 2010»
13 years 9 months ago
Strongly Unforgeable Signatures and Hierarchical Identity-Based Signatures from Lattices without Random Oracles
Abstract. We propose a variant of the “bonsai tree” signature scheme, a latticebased existentially unforgeable signature scheme in the standard model. Our construction offers ...
Markus Rückert
CTRSA
2006
Springer
176views Cryptology» more  CTRSA 2006»
13 years 8 months ago
Chosen Ciphertext Secure Public Key Threshold Encryption Without Random Oracles
Abstract. We present a non-interactive chosen ciphertext secure threshold encryption system. The proof of security is set in the standard model and does not use random oracles. Our...
Dan Boneh, Xavier Boyen, Shai Halevi
JOC
2011
102views more  JOC 2011»
13 years 4 days ago
Wildcarded Identity-Based Encryption
In this paper we introduce a new primitive called identity-based encryption with wildcards, or WIBE for short. It allows a sender to encrypt messages to a whole range of receivers ...
Michel Abdalla, James Birkett, Dario Catalano, Ale...
EUROCRYPT
2004
Springer
13 years 10 months ago
Chosen-Ciphertext Security from Identity-Based Encryption
Abstract. We propose a simple and efficient construction of a CCAsecure public-key encryption scheme from any CPA-secure identity-based encryption (IBE) scheme. Our construction re...
Ran Canetti, Shai Halevi, Jonathan Katz
EUROCRYPT
2004
Springer
13 years 9 months ago
Efficient Selective-ID Secure Identity-Based Encryption Without Random Oracles
An extended abstract of this paper appears in C. Cachin and J. Camenisch, editors, Advances in Cryptology-EUROCRYPT 2004, volume 3027 of Lecture Notes in Computer Science, pages 22...
Dan Boneh, Xavier Boyen