@article{CTT100894871, author = {Yi Lu and Keisuke Hara and Keisuke Tanaka}, title = {Multikey Verifiable Homomorphic Encryption.}, journal = {IEEE Access}, year = 2022, } @article{CTT100894877, author = {Fuyuki Kitagawa and Ryo Nishimaki and Keisuke Tanaka:}, title = {Obfustopia Built on Secret-Key Functional Encryption}, journal = {Journal of Cryptology}, year = 2022, } @article{CTT100894869, author = {Pengfei Wang and Xiangyu Su and Maxim Jourenko and Zixian Jiang and Mario Larangeira and Keisuke Tanaka}, title = {Environmental Adaptive Privacy Preserving Contact Tracing System: A Construction From Public Key Rerandomizable BLS Signatures.}, journal = {IEEE Access}, year = 2022, } @article{CTT100894874, author = {Keisuke Hara and Takahiro Matsuda and Keisuke Tanaka}, title = {Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption}, journal = {IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences}, year = 2022, } @article{CTT100894875, author = {Fuyuki Kitagawa and Takahiro Matsuda and Keisuke Tanaka}, title = {CCA Security and Trapdoor Functions via Key-Dependent-Message Security}, journal = {Journal of Cryptology}, year = 2022, } @article{CTT100894873, author = {Keisuke Hara and Takahiro Matsuda and Goichiro Hanaoka and Keisuke Tanaka}, title = {Generic transformation from broadcast encryption to round-optimal deniable ring authentication}, journal = {Designs, Codes and Cryptography}, year = 2022, } @inproceedings{CTT100894893, author = {Hiroki Yamamuro and Keisuke Hara and Masayuki Tezuka and Yusuke Yoshida and Keisuke Tanaka}, title = {Forward Secure Message Franking}, booktitle = {Information Security and Cryptology – ICISC 2021}, year = 2022, } @inproceedings{CTT100894879, author = {Yi Lu and Keisuke Hara and Kazuma Ohara and Jacob C. N. Schuldt and Keisuke Tanaka:}, title = {Efficient Two-Party Exponentiation from Quotient Transfer}, booktitle = {}, year = 2022, } @inproceedings{CTT100894904, author = {Kyohei Sudo and Masayuki Tezuka and Keisuke Hara and Yusuke Yoshida and KEISUKE TANAKA}, title = {A Quantum Search-to-Decision Reduction for the LPN Problem}, booktitle = {}, year = 2022, } @inproceedings{CTT100894890, author = {Pengfei Wang and Xiangyu Su and Maxim Jourenko and Zixian Jiang and Mario Larangeira and Keisuke Tanaka}, title = {Environmental Adaptive Privacy Preserving Contact Tracing System for Respiratory Infectious Diseases}, booktitle = {Cyberspace Safety and Security}, year = 2022, } @inproceedings{CTT100865748, author = {Yugo Koyanagi and Masahiro Ishii and KEISUKE TANAKA}, title = {Concurrent Group Operations on TreeKEM}, booktitle = {}, year = 2022, }