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Auflistung nach Autor:in "Araújo, Roberto"

1 - 2 von 2
  • Konferenzbeitrag
    eVoting with the European Citizen Card
    (BIOSIG 2008: Biometrics and Electronic Signatures, 2008) Meister, Gisela; Hühnlein, Detlef; Eichholz, Jan; Araújo, Roberto
    As many European countries are about to introduce national ID cards, which are compliant to the European Citizen Card specification [CEN15480] it is natural to study how those cards may be used to implement secure electronic vot- ing schemes. For this purpose we introduce a modified variant of the electronic voting scheme introduced in [JCJ05] which may be used with European Citizen Cards.
  • Konferenzbeitrag
    A pervasively verifiable online voting scheme
    (INFORMATIK 2008. Beherrschbare Systeme – dank Informatik. Band 1, 2008) Langer, Lucie; Schmidt, Axel; Araújo, Roberto
    We present an improvement of Ohkubo et al.’s e-voting protocol [OMA+99]: We provide that the validator’s signature is attached directly to the vote although the vote has been encrypted before. Thus verifiability does not end before tallying like in the original scheme but is pervasive even beyond the end of the election. This prevents manipulation of the plaintext votes and offers verifiability to the public instead of restricting it to the talliers. Moreover, privacy can be ensured without using blind signatures, which facilitates receipt-freeness. Our variant of the scheme also allows the voter to seemingly comply with the demand of a coercer while actually casting the vote she intended.