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ACNS
2010
Springer
187views Cryptology» more  ACNS 2010»
13 years 8 months ago
Generic Constructions for Verifiably Encrypted Signatures without Random Oracles or NIZKs
Verifiably encrypted signature schemes (VES) allow a signer to encrypt his or her signature under the public key of a trusted third party, while maintaining public signature verifi...
Markus Rückert, Michael Schneider 0002, Domin...
ASIACRYPT
2006
Springer
13 years 8 months ago
Simulation-Sound NIZK Proofs for a Practical Language and Constant Size Group Signatures
Non-interactive zero-knowledge proofs play an essential role in many cryptographic protocols. We suggest several NIZK proof systems based on prime order groups with a bilinear map...
Jens Groth
EUROCRYPT
2006
Springer
13 years 8 months ago
Sequential Aggregate Signatures and Multisignatures Without Random Oracles
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
Steve Lu, Rafail Ostrovsky, Amit Sahai, Hovav Shac...
PQCRYPTO
2010
250views Cryptology» more  PQCRYPTO 2010»
13 years 8 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
PKC
2007
Springer
189views Cryptology» more  PKC 2007»
13 years 11 months ago
Parallel Key-Insulated Public Key Encryption Without Random Oracles
Abstract. Key-insulated cryptography is a crucial technique for protecting private keys. To strengthen the security of key-insulated protocols, Hanaoka, Hanaoka and Imai recently i...
Benoît Libert, Jean-Jacques Quisquater, Moti...