01-10-2010, 09:59 AM
THRESHOLD_MULTISIGNATURE SCHEME.docx (Size: 17.34 KB / Downloads: 76)
A FULLY DISTRIBUTED PROACTIVELY SECURE THRESHOLD_MULTISIGNATURE SCHEME
INTRODUCTION
The main objective of this paper is to propose such a secure and efficient threshold¬_ Multisignature scheme. The paper uniquely defines the fundamental properties of Threshold_multisignature schemes and shows that the proposed scheme satisfies these properties and eliminates the latest attacks to which other similar schemes are subject.
Threshold-Multisignature schemes combine the properties of threshold group-oriented signature schemes and multisignature schemes to yield a signature scheme that allows a threshold or more group members to collaboratively sign an arbitrary message.
EXISTING SYSTEM:
Threshold-Multisignature schemes combine the properties of threshold group-oriented signature schemes and multisignature schemes to yield a signature scheme that allows a threshold or more group members to collaboratively sign an arbitrary message.
EXISTING SYSTEM:
In many applications, a threshold or more shareholders are required to cooperatively generate a digital signature, in contrast to the conventional single signer. This may also be seen as a distribution of trust since the shareholders must collaborate and contribute equally to produce a valid multiparty signature.
Threshold-multisignature schemes combine the properties of threshold group-oriented signature schemes and multisignature schemes. In the literature, threshold multisignature schemes are also referred to as threshold signature schemes with traceability. The combined properties guarantee the signature verifier that at least t members participated in the generation of the group-oriented signature and that the identities of the signers can be easily established. The majority of the existing threshold-multisignature schemes belong to variants of the single signatory, generalized ElGamal signatures extended to a group/multiparty set
Threshold-multisignature schemes combine the properties of threshold group-oriented signature schemes and multisignature schemes. In the literature, threshold multisignature schemes are also referred to as threshold signature schemes with traceability. The combined properties guarantee the signature verifier that at least t members participated in the generation of the group-oriented signature and that the identities of the signers can be easily established. The majority of the existing threshold-multisignature schemes belong to variants of the single signatory, generalized ElGamal signatures extended to a group/multiparty set