Integrated shuffle validity proving device, proof...

H - Electricity – 04 – L

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H04L 9/32 (2006.01) C09C 1/00 (2006.01)

Patent

CA 2609459

An integrated shuffle validity proving device (300) is provided correspondingly to an ordinal number .kappa. which is an integer representing an order. The device (300) has a permutation proof commitment unit (310) which, on receiving a commitment public key and a permutation storage commitment containing a permutation proof text made by first to (.kappa.-1)-th integrated shuffle validity proving devices from outside, encrypts a permutation proof commitment created by adding a permutation proof text made by the .kappa.-th integrated shuffle validity proving device to the received permutation storage commitment with the commitment public key and sends the encrypted permutation proof commitment to the outside.

L~invention concerne un dispositif de preuve de validité de mélange intégré (300) fourni en correspondance avec un nombre ordinal .kappa. qui est un entier représentant un ordre. Le dispositif (300) possède une unité d~implication de preuve de permutation (310) qui, à la réception d~une clé publique d~implication et d~une implication de stockage de permutation contenant un texte de preuve de permutation fait du premier au (.kappa.-1)ième dispositif de preuve de validité de mélange intégré de l~extérieur, code une implication de preuve de permutation créée en additionnant un texte de preuve de permutation fait par le .kappa.-ième dispositif de preuve de validité de mélange intégré à l~implication de stockage de permutation reçue avec la clé publique d~implication et fournit à l~extérieur l~implication de preuve de permutation codée.

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