Travail de recherche/Working paper
| Résumé : | In this paper, we propose a threshold blinded version of the Paillier public en- cryption scheme useful in a particular multi-party computation setting. This allows each emitter of a set of participants to encrypt and publish a value, to compute and decrypt the sum of all the published values once all the partici- pants published their encrypted value without allowing any of the participant to decrypt the value of another. This property can be particularly useful in the context of electronic voting where a tally must be computed without revealing the ballots of the voters. Our proposition uses the additive homomorphic en- cryption of Paillier to allow any voter to compute and decrypt the tally while preserving the secrecy of the election thanks to the blinding function. |
