"KEISUKE TANAKA,Toshiyuki Isshiki,Manh Ha Nguyen","Factoring-Based Proxy Re-Encryption Schemes","2014年 暗号と情報セキュリティシンポジウム",,,,,,2014,Jan. "KEISUKE TANAKA,Toshiyuki?Isshiki,Manh?Ha?Nguyen","Attacks to the Proxy Re-Encryption Schemes from IWSEC2011.","8th International Workshop on Security",,,,,"pp. 290-302",2013,Oct. "KEISUKE TANAKA,Toshiyuki?Isshiki,Manh?Ha?Nguyen","Factoring-Based Proxy Re-Encryption Schemes","7th International Conference on Provable Security",,,,,"pp. 309-329",2013,Oct. "KEISUKE TANAKA,Takayuki Otsubo,Manh Ha Nguyen,Ryo Nishimaki","On Master Secret-Key Leakage-Resilient Identity-Based Encryption","The 30th Symposium on Cryptography and Information Security",,,,,,2013,Jan. "KEISUKE TANAKA,Toshiyuki Isshiki,Manh Ha Nguyen","On the Hardness of the Assumptions Employed in the Proxy Re-Encryption Schemes from IWSEC2011","The 30th Symposium on Cryptography and Information Security",,,,,,2013,Jan. "KEISUKE TANAKA,Yusuke Kinoshita,Manh Ha Nguyen,Toshiyuki Isshiki","Proxy Broadcast Re-Encryption with CCA security","The 30th Symposium on Cryptography and Information Security",,,,,,2013,Jan. "KEISUKE TANAKA,Yusuke Kinoshita,Manh Ha Nguyen,Toshiyuki Isshiki","Threshold Proxy Broadcast Re-Encryption","The 30th Symposium on Cryptography and Information Security",,,,,,2013,Jan. "KEISUKE TANAKA,Manh?Ha?Nguyen,Kenji Yasunaga","Leakage-Resilience of Stateless/Stateful Public-Key Encryption from Hash Proofs","17th Australasian Conference on Information Security and Privacy","Information Security and Privacy",,,,"pp. 208-222",2012,July "KEISUKE TANAKA,Toshiyuki Isshiki,Manh Ha Nguyen","A Proxy Re-Encryption Scheme with CCA Security on Re-Encrypted Ciphertext","2012年 暗号と情報セキュリティシンポジウム",,,,,,2012,Jan. "KEISUKE TANAKA,Manh Ha Nguyen,kenji yasunaga","Leakage-Resilient CCA2 Public-Key Encryption from 4-wise independent hash functions","2011 International Conference on Advanced Technologies for Communications",,,,,,2011,Aug.