Electronic bidding / bid opening program, electronic bidding / bid opening system, and electronic bidding / bid opening way

摘要

Justifiability of information of bid is guaranteed, furthermore electronic bid/the bid opening program etc which makes that it proves the presence of alteration of information of bid possible is obtained. Each part of information of bid and information of bid you acquire with the plural information which encode each one of the plural right places of information of the part identification which identifiable is displayed and information of bid and the information which attaches the signature of the acceptance person in charge on information of those part identifications and the information which encodes the amount from the other part, you verify the specified justifiability regarding successful bid processing with the specified combination of each information among these plural items of information.