Abstract. We propose a variant of the “bonsai tree” signature scheme, a latticebased existentially unforgeable signature scheme in the standard model. Our construction offers ...
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...
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...
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...
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...