Abstract
Targeting at some problems such as the control of a single authority and guarantee of privacy of multi-authority, this paper proposes a double-blind multi-authority e-voting system based Ghadafi’s group blind signature and SP-signature. By introducing multi-authority, this paper solves the control problem of a single authority. By using the SP-signature, voters cannot vote for others. The new system voter can protect confidentiality of voting information and the privacy of authority. Finally, the security of the new e-voting system is analyzed which includes eligibility, privacy, universal verifiability, uncoercibility, unreusability and fairness.
Highlights
INTRODUCTIONThe electronic voting system is an important tool for fair voting
Election and voting are the reflection of democracy of a country
Targeting at some problems such as the control of a single authority and guarantee of privacy of multiauthority, this paper proposes a double-blind multiauthority e-voting system based Ghadafi’s group blind signature and SP-signature
Summary
The electronic voting system is an important tool for fair voting. In 2011, Philip et al [2]constructed an multi-authority electronic voting system in which the identity of authority was not confidential. In 2011, Okediran et al [3]constructed a electronic voting system framework open to several authorities whose identities were public. The voting result could be controlled by the authority. The voting result is controlled in the former, but the identity of authority is public in the latter, which leaks part of voters’ information and damages a certain privacy of voters. Based on Ghadafi’s group blind signature agreement and Abe’s structural signature, this paper constructs a multi-authority and double-private e-voting system to guarantee both the reliability of voting result and the identity of authority so as to protect voters.
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