"Yoshifumi Saito,Wakaha Ogata","Private Decision Tree Evaluation by a Single Untrusted Server for Machine Learnig as a Service",,"IEICE Trans. on Fundamentals",,"Vol. E105-A","No. 3",,2022,Mar. "Toi Tomita,Wakaha Ogata,Kaoru Kurosawa","Boosting CPA to CCA2 for Leakage-Resilient Attribute-Based Encryption by Using New QA-NIZK",,"IEICE Trans. on Fundamentals",,"Vol. Vol.E105-A","No. 3",,2022,Mar. "兵頭昇虎,尾形 わかは","信頼度を用いた実用的なProof of Personhoodプロトコルの構築","2022年暗号と情報セキュリティシンポジウム",,,,,,2022,Jan. "齋藤 拓巳,岡 響,中橋 彬,尾形 わかは","プライバシを保護したRNNによる非対話型文書分類","2022年暗号と情報セキュリティシンポジウム",,,,,,2022,Jan. "松本彩花,尾形わかは,高橋健太,西垣正勝","暗号のための脳機能拡張:信用ができる計算機が不要な署名方式の提案","2022年暗号と情報セキュリティシンポジウム",,,,,,2022,Jan.