JP2007287104A5 - - Google Patents
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- JP2007287104A5 JP2007287104A5 JP2006116964A JP2006116964A JP2007287104A5 JP 2007287104 A5 JP2007287104 A5 JP 2007287104A5 JP 2006116964 A JP2006116964 A JP 2006116964A JP 2006116964 A JP2006116964 A JP 2006116964A JP 2007287104 A5 JP2007287104 A5 JP 2007287104A5
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前記匿名注文をする購入者の個人情報及びグループ署名関連情報を第１記憶手段に記憶し、販売店から受けた注文ＩＤ及びグループ署名を含む匿名注文情報に基づいて、前記追跡機能により、当該グループ署名を復号して得られたグループ署名関連情報から前記第１記憶手段内の対応する個人情報を特定し、この個人情報を外部の配送手段による配送のために出力する管理者装置と、
過去の購入者の購入者装置に発行した仮ＩＤ、パスワード及びポイント情報を互いに関連付けて第２記憶手段に記憶しておき、今回の購入者の購入者装置に注文ＩＤを発行し、今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報と仮ＩＤ及びパスワードとを受けると、当該グループ署名を検証し、当該仮ＩＤ及びパスワードを前記第２記憶手段を参照して検証し、両方の検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送出し、当該匿名注文情報を前記管理者装置に送出する販売店装置と、
過去の匿名注文情報、仮ＩＤ、パスワード及びポイント情報を互いに関連付けて第３記憶手段に記憶しておき、前記購入者の操作により、前記販売店装置から注文ＩＤを受けると、この注文ＩＤ及びグループ署名を含む匿名注文情報を生成し、得られた匿名注文情報と前記第３記憶手段内の仮ＩＤ及びパスワードとを前記販売店装置に送信し、この送信に応じて前記販売店装置から受けたポイント情報を今回の匿名注文情報、仮ＩＤ及びパスワードに互いに関連付けて前記第３記憶手段に保存する購入者装置と
を備えたことを特徴とする匿名注文システム。 An anonymous order system capable of executing a point service for each anonymous order when performing sales corresponding to the anonymous order of the sales target by a group signature method having a tracking function,
The personal information and group signature related information of the buyer who makes the anonymous order is stored in the first storage means, and the tracking function enables the group to be used based on the anonymous order information including the order ID and group signature received from the store. An administrator device for identifying the corresponding personal information in the first storage means from the group signature related information obtained by decrypting the signature, and outputting the personal information for delivery by an external delivery means;
The temporary ID, password, and point information issued to the purchaser device of the previous purchaser are stored in the second storage means in association with each other, the order ID is issued to the purchaser device of the current purchaser, and the current purchase Receiving the anonymous order information including the order ID and the group signature and the temporary ID and password from the user device, verify the group signature, verify the temporary ID and password with reference to the second storage means, both When the verification result is valid, the point information corresponding to the current anonymous order information is stored in the second storage means and sent to the purchaser device, and the anonymous order information is sent to the manager device. Equipment,
Past anonymous order information, provisional ID, password and point information are associated with each other and stored in the third storage means, and when the order ID is received from the store apparatus by the purchaser's operation, the order ID and group Anonymous order information including a signature is generated, and the obtained anonymous order information and the temporary ID and password in the third storage means are transmitted to the store apparatus, and received from the store apparatus in response to the transmission. A purchaser apparatus that stores point information in association with the current anonymous order information, temporary ID, and password in the third storage means.
前記匿名注文をする購入者の個人情報及びグループ署名関連情報を第１記憶手段に記憶し、販売店から受けた注文ＩＤ及びグループ署名を含む匿名注文情報に基づいて、前記追跡機能により、当該グループ署名を復号して得られたグループ署名関連情報から前記第１記憶手段内の対応する個人情報を特定し、この個人情報を外部の配送手段による配送のために出力する管理者装置と、
ゼロ知識証明方式に基づき過去の購入者の購入者装置から提示された利用提示用情報と、過去に発行したポイント情報とを互いに関連付けて第２記憶手段に記憶しておき、今回の購入者の購入者装置に注文ＩＤを発行し、今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報と利用提示用情報及び証明情報とを受けると、当該グループ署名を検証し、当該利用提示用情報及び証明情報を前記第２記憶手段を参照して前記ゼロ知識証明に基づき検証し、両方の検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送出し、当該匿名注文情報を前記管理者装置に送出する販売店装置と、
過去の匿名注文情報、過去の利用提示用情報及びポイント情報を互いに関連付けて第３記憶手段に記憶しておき、前記購入者の操作により、前記販売店装置から注文ＩＤを受けると、この注文ＩＤ及びグループ署名を含む匿名注文情報を生成し、前記第３記憶手段内の利用提示情報及び前記ゼロ知識証明方式に基づいて今回の利用提示用情報及び証明情報を生成し、得られた匿名注文情報と、前記第３記憶手段内の利用提示用情報と、今回の利用提示用情報及び証明情報とを前記販売店装置に送信し、この送信に応じて前記販売店装置から受けたポイント情報を今回の匿名注文情報、今回の利用提示用情報に互いに関連付けて前記第３記憶手段に保存する購入者装置と
を備えたことを特徴とする匿名注文システム。 An anonymous order system capable of executing a point service for each anonymous order when performing sales corresponding to the anonymous order of the sales target by a group signature method having a tracking function,
The personal information and group signature related information of the buyer who makes the anonymous order is stored in the first storage means, and the tracking function enables the group to be used based on the anonymous order information including the order ID and group signature received from the store. An administrator device for identifying the corresponding personal information in the first storage means from the group signature related information obtained by decrypting the signature, and outputting the personal information for delivery by an external delivery means;
Based on the zero-knowledge proof method, the usage presentation information presented from the purchaser device of the past purchaser and the point information issued in the past are stored in the second storage means in association with each other, When the order ID is issued to the purchaser apparatus, and the anonymous order information including the order ID and the group signature, the use presentation information, and the certification information are received from the purchaser apparatus of this time, the group signature is verified, and the use presentation is performed. The verification information and verification information are verified based on the zero knowledge proof with reference to the second storage means, and when both verification results are valid, the point information corresponding to the current anonymous order information is stored in the second storage means. Store and send to the purchaser device and store the anonymous order information to the manager device;
The past anonymous order information, the past use presentation information and the point information are stored in the third storage means in association with each other, and when the order ID is received from the store apparatus by the purchaser operation, the order ID Anonymous order information including the group signature is generated, and the current presentation information and proof information are generated based on the usage presentation information in the third storage means and the zero knowledge proof method, and the obtained anonymous order information is obtained. And the use presentation information in the third storage means, the current use presentation information and the certification information are transmitted to the store apparatus, and the point information received from the store apparatus in response to the transmission is received this time An anonymous ordering system, comprising: a purchaser device that stores the information in the third storage unit in association with the anonymous ordering information and the current use presentation information.
過去の購入者の購入者装置に発行した仮ＩＤ、パスワード及びポイント情報が互いに関連付けて記憶される第２記憶手段と、
今回の購入者の購入者装置から受けた販売対象特定情報に基づいて注文ＩＤを発行し、この注文ＩＤを当該購入者装置に送信する注文ＩＤ発行手段と、
今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報を受けると、当該グループ署名を検証する署名検証手段と、
今回の購入者装置から仮ＩＤ及びパスワードを受けると、当該仮ＩＤ及びパスワードを前記第２記憶手段を参照して検証する仮ＩＤ検証手段と、
全ての検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送信するポイント情報処理手段と、
全ての検証結果が正当のとき、今回の匿名注文情報を前記管理者装置に送信する送信手段と
を備えたことを特徴とする販売店装置。 Purchase of a purchaser who uses the anonymous ordering system, which is used in an anonymous ordering system capable of executing a point service for each anonymous order when performing sales according to the anonymous order of the sales target by a group signature method having a tracking function A dealer apparatus capable of communicating with both the administrator apparatus and the administrator apparatus that manages the purchaser by the group signature method,
Second storage means for storing the temporary ID, password and point information issued to the purchaser device of the previous purchaser in association with each other;
An order ID issuing means for issuing an order ID based on the sales target specifying information received from the purchaser device of the current purchaser and transmitting the order ID to the purchaser device;
Upon receiving anonymous order information including the order ID and group signature from the purchaser device this time, signature verification means for verifying the group signature;
Upon receiving the temporary ID and password from the purchaser device this time, temporary ID verification means for verifying the temporary ID and password with reference to the second storage means;
When all the verification results are valid, point information processing means for storing point information corresponding to the current anonymous order information in the second storage means and transmitting to the purchaser device;
A store apparatus comprising: a transmitting unit that transmits the anonymous order information of this time to the manager apparatus when all the verification results are valid.
ゼロ知識証明方式に基づき過去の購入者の購入者装置から提示された利用提示用情報及びポイント情報が互いに関連付けて記憶される第２記憶手段と、
今回の購入者の購入者装置から受けた販売対象特定情報に基づいて注文ＩＤを発行し、この注文ＩＤを当該購入者装置に送信する注文ＩＤ発行手段と、
今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報を受けると、当該グループ署名を検証する署名検証手段と、
今回の購入者装置から利用提示用情報及び証明情報を受けると、当該利用提示用情報及び証明情報を前記第２記憶手段を参照して前記ゼロ知識証明方式に基づき検証するゼロ知識証明検証手段と、
全ての検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送信するポイント情報処理手段と、
全ての検証結果が正当のとき、今回の匿名注文情報を前記管理者装置に送信する送信手段と
を備えたことを特徴とする販売店装置。 Purchase of a purchaser who uses the anonymous ordering system, which is used in an anonymous ordering system capable of executing a point service for each anonymous order when performing sales according to the anonymous order of the sales target by a group signature method having a tracking function A dealer apparatus capable of communicating with both the administrator apparatus and the administrator apparatus that manages the purchaser by the group signature method,
Second storage means for storing usage presentation information and point information presented from a purchaser device of a past purchaser based on a zero knowledge proof method, in association with each other;
An order ID issuing means for issuing an order ID based on the sales target specifying information received from the purchaser device of the current purchaser and transmitting the order ID to the purchaser device;
Upon receiving anonymous order information including the order ID and group signature from the purchaser device this time, signature verification means for verifying the group signature;
Zero knowledge proof verification means for verifying the usage presentation information and proof information based on the zero knowledge proof method with reference to the second storage means upon receipt of the use presentation information and proof information from the purchaser device this time; ,
When all the verification results are valid, point information processing means for storing point information corresponding to the current anonymous order information in the second storage means and transmitting to the purchaser device;
A store apparatus comprising: a transmission unit that transmits the anonymous order information of this time to the manager apparatus when all the verification results are valid.
前記販売店装置のコンピュータを、
過去の購入者の購入者装置に発行した仮ＩＤ、パスワード及びポイント情報が互いに関連付けて記憶される第２記憶手段、
今回の購入者の購入者装置から受けた販売対象特定情報に基づいて注文ＩＤを発行し、この注文ＩＤを当該購入者装置に送信する注文ＩＤ発行手段、
今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報を受けると、当該グループ署名を検証する署名検証手段、
今回の購入者装置から仮ＩＤ及びパスワードを受けると、当該仮ＩＤ及びパスワードを前記第２記憶手段を参照して検証する仮ＩＤ検証手段、
全ての検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送信するポイント情報処理手段、
全ての検証結果が正当のとき、今回の匿名注文情報を前記管理者装置に送信する送信手段、
として機能させるためのプログラム。 Purchase of a purchaser who uses the anonymous ordering system, which is used in an anonymous ordering system capable of executing a point service for each anonymous order when performing sales according to the anonymous order of the sales target by a group signature method having a tracking function A store device program capable of communicating with both the device of the seller device and the administrator device of managing the purchaser by the group signature method,
A computer of the store apparatus;
A second storage means for storing a temporary ID, password and point information issued to a purchaser device of a past purchaser in association with each other;
An order ID issuing means for issuing an order ID based on the sales target specifying information received from the purchaser device of the current purchaser and transmitting the order ID to the purchaser device;
Signature verification means for verifying the group signature when receiving anonymous order information including the order ID and group signature from the purchaser device of this time;
Upon receiving the temporary ID and password from the purchaser device this time, temporary ID verification means for verifying the temporary ID and password with reference to the second storage means;
When all verification results are valid, point information processing means for storing point information corresponding to the current anonymous order information in the second storage means and transmitting to the purchaser device,
When all verification results are valid, the transmission means for transmitting the anonymous order information of this time to the manager device,
Program to function as.
前記販売店装置のコンピュータを、
ゼロ知識証明方式に基づき過去の購入者の購入者装置から提示された利用提示用情報及びポイント情報が互いに関連付けて記憶される第２記憶手段、
今回の購入者の購入者装置から受けた販売対象特定情報に基づいて注文ＩＤを発行し、この注文ＩＤを当該購入者装置に送信する注文ＩＤ発行手段、
今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報を受けると、当該グループ署名を検証する署名検証手段、
今回の購入者装置から利用提示用情報及び証明情報を受けると、当該利用提示用情報及び証明情報を前記第２記憶手段を参照して前記ゼロ知識証明方式に基づき検証するゼロ知識証明検証手段、
全ての検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送信するポイント情報処理手段、
全ての検証結果が正当のとき、今回の匿名注文情報を前記管理者装置に送信する送信手段、
として機能させるためのプログラム。 Purchase of a purchaser who uses the anonymous ordering system, which is used in an anonymous ordering system capable of executing a point service for each anonymous order when performing sales according to the anonymous order of the sales target by a group signature method having a tracking function A store device program capable of communicating with both the device of the seller device and the administrator device of managing the purchaser by the group signature method,
A computer of the store apparatus;
Second storage means for storing usage presentation information and point information presented from a purchaser device of a past purchaser based on a zero knowledge proofing method;
An order ID issuing means for issuing an order ID based on the sales target specifying information received from the purchaser device of the current purchaser and transmitting the order ID to the purchaser device;
Signature verification means for verifying the group signature when receiving anonymous order information including the order ID and group signature from the purchaser device of this time;
When receiving the use presentation information and certification information from the purchaser device this time, zero knowledge certification verification means for verifying the usage presentation information and certification information based on the zero knowledge certification scheme with reference to the second storage means,
When all verification results are valid, point information processing means for storing point information corresponding to the current anonymous order information in the second storage means and transmitting to the purchaser device,
When all verification results are valid, the transmission means for transmitting the anonymous order information of this time to the manager device,
Program to function as.
前記匿名注文をする購入者の個人情報及びグループ署名関連情報を第１記憶手段に記憶し、販売店から受けた注文ＩＤ及びグループ署名を含む匿名注文情報に基づいて、前記追跡機能により、当該グループ署名を復号して得られたグループ署名関連情報から前記第１記憶手段内の対応する個人情報を特定し、この個人情報を外部の配送手段による配送のために出力する管理者装置と、
過去の購入者の購入者装置に発行した仮ＩＤ、パスワード及びポイント情報を互いに関連付けて第２記憶手段に記憶しておき、今回の購入者の購入者装置に注文ＩＤを発行し、今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報と仮ＩＤ及びパスワードとを受けると、当該グループ署名を検証し、当該仮ＩＤ及びパスワードを前記第２記憶手段を参照して検証し、両方の検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送出し、当該匿名注文情報を前記管理者装置に送出する販売店装置と
の両装置と通信可能な購入者装置のプログラムであって、
前記購入装置のコンピュータを、
過去の匿名注文情報、仮ＩＤ、パスワード及びポイント情報が互いに関連付けて記憶される第３記憶手段、
前記購入者の操作により、前記販売店装置から注文ＩＤを受けると、この注文ＩＤ及びグループ署名を含む匿名注文情報を生成する匿名情報生成手段、
得られた匿名注文情報と前記第３記憶手段内の仮ＩＤ及びパスワードとを前記販売店装置に送信する仮ＩＤ送信手段、
この送信に応じて前記販売店装置から受けたポイント情報を今回の匿名注文情報、仮ＩＤ及びパスワードに互いに関連付けて前記第３記憶手段に書き込むポイント書込手段、
として機能させるためのプログラム。 When performing sales according to the anonymous order of the sales target by the group signature method having a tracking function, used for an anonymous order system capable of executing a point service for each anonymous order,
The personal information and group signature related information of the buyer who makes the anonymous order is stored in the first storage means, and the tracking function enables the group to be used based on the anonymous order information including the order ID and group signature received from the store. An administrator device for identifying corresponding personal information in the first storage means from the group signature related information obtained by decrypting the signature, and outputting the personal information for delivery by an external delivery means;
The temporary ID, password, and point information issued to the purchaser device of the previous purchaser are stored in the second storage means in association with each other, the order ID is issued to the purchaser device of the current purchaser, and the current purchase The anonymous order information including the order ID and the group signature and the temporary ID and password are received from the user device, the group signature is verified, the temporary ID and password are verified with reference to the second storage means, both If the verification result is valid, the point information corresponding to the current anonymous order information is stored in the second storage means and sent to the purchaser device, and the anonymous order information is sent to the manager device. A purchaser device program capable of communicating with both devices,
A computer of the purchasing device;
Third storage means for storing past anonymous order information, temporary ID, password and point information in association with each other;
Anonymous information generating means for generating anonymous order information including the order ID and a group signature when receiving an order ID from the store apparatus by the purchaser's operation;
Temporary ID transmission means for transmitting the obtained anonymous order information and the temporary ID and password in the third storage means to the store apparatus;
Point writing means for writing the point information received from the store apparatus in response to this transmission into the third storage means in association with the current anonymous order information, temporary ID and password,
Program to function as.
前記匿名注文をする購入者の個人情報及びグループ署名関連情報を第１記憶手段に記憶し、販売店から受けた注文ＩＤ及びグループ署名を含む匿名注文情報に基づいて、前記追跡機能により、当該グループ署名を復号して得られたグループ署名関連情報から前記第１記憶手段内の対応する個人情報を特定し、この個人情報を外部の配送手段による配送のために出力する管理者装置と、
ゼロ知識証明方式に基づき過去の購入者の購入者装置から提示された利用提示用情報と、過去に発行したポイント情報とを互いに関連付けて第２記憶手段に記憶しておき、今回の購入者の購入者装置に注文ＩＤを発行し、今回の購入者装置から前記注文ＩＤ及びグループ署名を含む匿名注文情報と利用提示用情報及び証明情報とを受けると、当該グループ署名を検証し、当該利用提示用情報及び証明情報を前記第２記憶手段を参照して前記ゼロ知識証明に基づき検証し、両方の検証結果が正当のとき、今回の匿名注文情報に応じたポイント情報を前記第２記憶手段に保存し且つ前記購入者装置に送出し、当該匿名注文情報を前記管理者装置に送出する販売店装置と
の両装置と通信可能な購入者装置のプログラムであって、
前記購入装置のコンピュータを、
過去の匿名注文情報、過去の利用提示用情報及びポイント情報が互いに関連付けて記憶される第３記憶手段、
前記購入者の操作により、前記販売店装置から注文ＩＤを受けると、この注文ＩＤ及びグループ署名を含む匿名注文情報を生成する匿名情報生成手段、
前記第３記憶手段内の利用提示情報及び前記ゼロ知識証明方式に基づいて、今回の利用提示用情報及び証明情報を生成する証明情報生成手段、
前記匿名情報生成手段により得られた匿名注文情報と、前記第３記憶手段内の利用提示用情報と、前記証明情報生成手段により生成された今回の利用提示用情報及び証明情報とを前記販売店装置に送信する証明情報送信手段、
この送信に応じて前記販売店装置から受けたポイント情報を今回の匿名注文情報、今回の利用提示用情報に互いに関連付けて前記第３記憶手段に書き込むポイント書込手段、
として機能させるためのプログラム。 When performing sales according to an anonymous order for sale by a group signature method having a tracking function, it is used for an anonymous order system capable of executing a point service for each anonymous order,
The personal information and group signature related information of the buyer who makes the anonymous order is stored in the first storage means, and the tracking function enables the group to be used based on the anonymous order information including the order ID and group signature received from the store. An administrator device for identifying the corresponding personal information in the first storage means from the group signature related information obtained by decrypting the signature, and outputting the personal information for delivery by an external delivery means;
Based on the zero-knowledge proof method, the usage presentation information presented from the purchaser device of the past purchaser and the point information issued in the past are stored in the second storage means in association with each other, When the order ID is issued to the purchaser apparatus, and the anonymous order information including the order ID and the group signature, the use presentation information, and the certification information are received from the purchaser apparatus of this time, the group signature is verified, and the use presentation is performed. The verification information and verification information are verified based on the zero knowledge proof with reference to the second storage means, and when both verification results are valid, the point information corresponding to the current anonymous order information is stored in the second storage means. A program for the purchaser device that can communicate with both the store device and the store device that stores and sends the anonymous order information to the manager device;
A computer of the purchasing device;
A third storage means for storing past anonymous order information, past use presentation information and point information in association with each other;
Anonymous information generating means for generating anonymous order information including the order ID and a group signature when receiving an order ID from the store apparatus by the purchaser's operation;
Proof information generating means for generating the present use presentation information and proof information based on the use presentation information in the third storage means and the zero knowledge proof method,
Anonymous order information obtained by the anonymous information generating means, use presentation information in the third storage means, and current use presentation information and certification information generated by the certification information generating means Certificate information transmitting means for transmitting to the device;
Point writing means for writing the point information received from the store apparatus in response to this transmission into the third storage means in association with the current anonymous order information and the current use presentation information,
Program to function as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006116964A JP4724040B2 (en) | 2006-04-20 | 2006-04-20 | Anonymous order system, device and program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006116964A JP4724040B2 (en) | 2006-04-20 | 2006-04-20 | Anonymous order system, device and program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007287104A JP2007287104A (en) | 2007-11-01 |
| JP2007287104A5 true JP2007287104A5 (en) | 2009-04-30 |
| JP4724040B2 JP4724040B2 (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2006116964A Active JP4724040B2 (en) | 2006-04-20 | 2006-04-20 | Anonymous order system, device and program |
Country Status (1)
| Country | Link |
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| JP (1) | JP4724040B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4971917B2 (en) * | 2007-09-11 | 2012-07-11 | 日本放送協会 | Signature generation device, signature verification device, group management device, and program thereof |
| JP2010161517A (en) * | 2009-01-07 | 2010-07-22 | Nippon Hoso Kyokai <Nhk> | Group index management device, group management device, signature generation device, and signature verification device |
| JP5793322B2 (en) * | 2011-03-28 | 2015-10-14 | Ｎｅｃパーソナルコンピュータ株式会社 | Electronic coupon usage system |
| JP7188962B2 (en) | 2018-10-02 | 2022-12-13 | 東芝テック株式会社 | Point management system, point management device and information processing program |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002007904A (en) * | 2000-06-06 | 2002-01-11 | Internatl Business Mach Corp <Ibm> | Article delivery method, online shopping method, online shopping system, server, and seller server |
| JP4574957B2 (en) * | 2002-05-30 | 2010-11-04 | 株式会社東芝 | Group management organization device, user device, service provider device, and program |
| JP2004139413A (en) * | 2002-10-18 | 2004-05-13 | Nippon Telegr & Teleph Corp <Ntt> | Anonymously article ordering method, orderer terminal device, anonymous service terminal device and program |
| JP4258314B2 (en) * | 2003-08-04 | 2009-04-30 | 日本電信電話株式会社 | Content providing method and system, and content providing program |
| JP2005327243A (en) * | 2004-04-12 | 2005-11-24 | Yamada Denki Co Ltd | Point system using information terminal |
| JP4558387B2 (en) * | 2004-06-17 | 2010-10-06 | Ｋｄｄｉ株式会社 | User authentication system and method |
| JP2006011675A (en) * | 2004-06-24 | 2006-01-12 | Hitachi Ltd | Customer management system |
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2006
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