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IACR
2011
146views more  IACR 2011»
12 years 10 months ago
Identity-based Digital Signature Scheme Without Bilinear Pairings
: Many identity-based digital signature schemes using bilinear pairings have been proposed. But the relative computation cost of the pairing is approximately twenty times higher th...
Debiao He, Jianhua Chen, Jin Hu
PQCRYPTO
2010
250views Cryptology» more  PQCRYPTO 2010»
14 years 2 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
INFORMATICALT
2010
103views more  INFORMATICALT 2010»
13 years 8 months ago
Delegatability of an Identity Based Strong Designated Verifier Signature Scheme
In 2007, Kancharla et al. proposed an identity-based strong designated verifier signature (IBSDVS) scheme based on bilinear pairings, and claimed it unforgeable and non-delegatable...
Xun Sun, Jianhua Li, Hu Yin, Gongliang Chen
INFORMATICALT
2010
126views more  INFORMATICALT 2010»
13 years 9 months ago
Identity-Based Threshold Proxy Signature from Bilinear Pairings
Abstract. Delegation of rights is a common practice in the real world. We present two identitybased threshold proxy signature schemes, which allow an original signer to delegate he...
Jenshiuh Liu, Shaonung Huang
CTRSA
2004
Springer
120views Cryptology» more  CTRSA 2004»
14 years 4 months ago
Identity Based Undeniable Signatures
Abstract. In this paper, we give a first example of identity based undeniable signature using pairings over elliptic curves. We extend to the identity based setting the security m...
Benoît Libert, Jean-Jacques Quisquater