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ICIP
2009
IEEE
16 years 7 months ago
Security Evaluation Of Informed Watermarking Schemes
In this paper, security evaluation of an important watermarking class based on quantization is given. Theoretical developments and practical simulations are used to measure the se...
CCS
2007
ACM
16 years 17 days ago
Ordered multisignatures and identity-based sequential aggregate signatures, with applications to secure routing
We construct two new multiparty digital signature schemes that allow multiple signers to sequentially produce a compact, fixed-length signature. First, we introduce a new primiti...
Alexandra Boldyreva, Craig Gentry, Adam O'Neill, D...
ESORICS
2007
Springer
16 years 16 days ago
Synthesizing Secure Protocols
Abstract. We propose a general transformation that maps a cryptographic protocol that is secure in an extremely weak sense (essentially in a model where no adversary is present) in...
Véronique Cortier, Bogdan Warinschi, Eugen ...
ASIACRYPT
2008
Springer
15 years 8 months ago
Chosen Ciphertext Security with Optimal Ciphertext Overhead
Every public-key encryption scheme has to incorporate a certain amount of randomness into its ciphertexts to provide semantic security against chosen ciphertext attacks (IND-CCA). ...
Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto
CRYPTO
2005
Springer
107views Cryptology» more  CRYPTO 2005»
15 years 12 months ago
A Quantum Cipher with Near Optimal Key-Recycling
Abstract. Assuming an insecure quantum channel and an authenticated classical channel, we propose an unconditionally secure scheme for encrypting classical messages under a shared ...
Ivan Damgård, Thomas Brochmann Pedersen 0002...