@article{oai:ipsj.ixsq.nii.ac.jp:00231830,
 author = {古家, 直樹 and 矢内, 直人 and 藤原, 融 and Naoki, Furuya and Naoto, Yanai and Toru, Fujiwara},
 issue = {1},
 journal = {情報処理学会論文誌デジタルプラクティス（DP）},
 month = {Jan},
 note = {物流業界の配送マッチングサービスでは，荷主の追加オーダをトラックのルートの途中に割り当てる．追加オーダとルートには，出発地・到着地の所在地などの機微情報が含まれることから，マッチングサービスの提供者に対して追加オーダとルートを秘匿する秘匿配送マッチングの実現が望まれる．秘密計算の手法には準同型暗号等があるが各手法とも処理速度が課題である．そこで本研究では，処理時間の課題に対して，鍵生成者が秘密鍵に演算を埋め込める関数型暗号をTEE（Trusted Execution Environment）によって実現し，秘匿配送マッチングに適用する．TEEとしてIntel SGXを用いて処理時間と秘匿性の評価したところ，トラックのルートが289件含まれるマッチングを約2.5秒で実施でき，TEEによる関数型暗号の有効性を確認した．, A delivery matching service in logistics industry allocates a shipper's additional order to a truck route. Since additional orders and routes contain sensitive information such as the locations of departure and arrival points, it is desirable to realize confidential delivery matching that conceals additional orders and routes from matching service providers. There are various methods of secure computing such as homomorphic encryption, but each method has a problem of processing speed. To solve the problem of processing time, we implement functional encryption in which the key generator can embed operations in the secret key by TEE (Trusted Execution Environment), and apply it to confidential delivery matching. We evaluate the processing time and confidentiality using Intel SGX as TEE. A Matching including 289 truck routes is performed in about 2.5 seconds, confirming its effectiveness.},
 pages = {11--22},
 title = {TEEを用いた関数型暗号による秘匿配送マッチングの実現},
 volume = {5},
 year = {2024}
}