Yohei Watanabe

According to our database, Yohei Watanabe authored at least 58 papers between 2012 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Designated Verifier Signature with Claimability.

Kyosuke Yamashita, Keisuke Hara, Yohei Watanabe, Naoto Yanai, Junji Shikata

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2024

2023

Multi-Designated Receiver Authentication Codes: Models and Constructions.

Yohei Watanabe, Takenobu Seito, Junji Shikata

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., March, 2023

A Computationally Efficient Card-Based Majority Voting Protocol with Fewer Cards in the Private Model.

Yoshiki Abe, Takeshi Nakai, Yohei Watanabe, Mitsugu Iwamoto, Kazuo Ohta

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., March, 2023

Abstraction Model of Probing and DFA Attacks on Block Ciphers.

Yuiko Matsubara, Daiki Miyahara, Yohei Watanabe, Mitsugu Iwamoto, Kazuo Sakiyama

IACR Cryptol. ePrint Arch., 2023

Updatable Public Key Encryption with Strong CCA Security: Security Analysis and Efficient Generic Construction.

Kyoichi Asano, Yohei Watanabe

IACR Cryptol. ePrint Arch., 2023

Tight lower bounds and optimal constructions of anonymous broadcast encryption and authentication.

Hirokazu Kobayashi, Yohei Watanabe, Kazuhiko Minematsu, Junji Shikata

Des. Codes Cryptogr., 2023

Anonymous Broadcast Authentication With One-to-Many Transmission to Control IoT Devices.

Kazuhiko Minematsu, Junji Shikata, Yohei Watanabe, Naoto Yanai

IEEE Access, 2023

IoT-REX: A Secure Remote-Control System for IoT Devices from Centralized Multi-designated Verifier Signatures.

Yohei Watanabe, Naoto Yanai, Junji Shikata

Proceedings of the Information Security Practice and Experience, 2023

Packet Analysis and Information Theory on Attack Detection for Modbus TCP.

Tatsuya Nishiuchi, Shintaro Fujita, Yohei Watanabe, Mitsugu Iwamoto, Kenji Sawada

Proceedings of the 49th Annual Conference of the IEEE Industrial Electronics Society, 2023

Constant-Deposit Multiparty Lotteries on Bitcoin for Arbitrary Number of Players and Winners.

Shun Uchizono, Takeshi Nakai, Yohei Watanabe, Mitsugu Iwamoto

Proceedings of the Information Security and Cryptology - ICISC 2023, 2023

Single-Shuffle Card-Based Protocols with Six Cards per Gate.

Tomoki Ono, Kazumasa Shinagawa, Takeshi Nakai, Yohei Watanabe, Mitsugu Iwamoto

Proceedings of the Information Security and Cryptology - ICISC 2023, 2023

Efficient Result-Hiding Searchable Encryption with Forward and Backward Privacy.

Takumi Amada, Mitsugu Iwamoto, Yohei Watanabe

Proceedings of the Information Security and Cryptology - ICISC 2023, 2023

The Two Sheriffs Problem: Cryptographic Formalization and Generalization.

Kota Sugimoto, Takeshi Nakai, Yohei Watanabe, Mitsugu Iwamoto

Proceedings of the Combinatorial Optimization and Applications, 2023

Forward and Backward Private Dynamic Searchable Encryption with Better Space Efficiency.

Yexuan Liu, Yohei Watanabe, Junji Shikata

Proceedings of the 57th Annual Conference on Information Sciences and Systems, 2023

2022

How to Make a Secure Index for Searchable Symmetric Encryption, Revisited.

Yohei Watanabe, Takeshi Nakai, Kazuma Ohara, Takuya Nojima, Yexuan Liu, Mitsugu Iwamoto, Kazuo Ohta

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., December, 2022

Identity-based encryption with security against the KGC: A formal model and its instantiations.

Keita Emura, Shuichi Katsumata, Yohei Watanabe

Theor. Comput. Sci., 2022

Efficient Card-Based Majority Voting Protocols.

Yoshiki Abe, Takeshi Nakai, Yoshihisa Kuroki, Shinnosuke Suzuki, Yuta Koga, Yohei Watanabe, Mitsugu Iwamoto, Kazuo Ohta

New Gener. Comput., 2022

Efficient Dynamic Searchable Encryption with Forward Privacy under the Decent Leakage.

Yohei Watanabe, Kazuma Ohara, Mitsugu Iwamoto, Kazuo Ohta

Proceedings of the CODASPY '22: Twelveth ACM Conference on Data and Application Security and Privacy, Baltimore, MD, USA, April 24, 2022

Multi-Designated Receiver Authentication-Codes with Information-Theoretic Security.

Takenobu Seito, Junji Shikata, Yohei Watanabe

Proceedings of the 56th Annual Conference on Information Sciences and Systems, 2022

2021

Revocable identity-based encryption with bounded decryption key exposure resistance: Lattice-based construction and more.

Atsushi Takayasu, Yohei Watanabe

Theor. Comput. Sci., 2021

Efficient revocable identity-based encryption with short public parameters.

Keita Emura, Jae Hong Seo, Yohei Watanabe

Theor. Comput. Sci., 2021

Generic Constructions of Revocable Hierarchical Identity-based Encryption.

Keita Emura, Atsushi Takayasu, Yohei Watanabe

IACR Cryptol. ePrint Arch., 2021

State-free End-to-End Encrypted Storage and Chat Systems based on Searchable Encryption.

Keita Emura, Ryoma Ito, Sachiko Kanamori, Ryo Nojima, Yohei Watanabe

IACR Cryptol. ePrint Arch., 2021

A Generic Construction of CCA-secure Attribute-based Encryption with Equality Test.

Kyoichi Asano, Keita Emura, Atsushi Takayasu, Yohei Watanabe

IACR Cryptol. ePrint Arch., 2021

Efficient identity-based encryption with Hierarchical key-insulation from HIBE.

Keita Emura, Atsushi Takayasu, Yohei Watanabe

Des. Codes Cryptogr., 2021

Adaptively secure revocable hierarchical IBE from k-linear assumption.

Keita Emura, Atsushi Takayasu, Yohei Watanabe

Des. Codes Cryptogr., 2021

Asymptotically Tight Lower Bounds in Anonymous Broadcast Encryption and Authentication.

Hirokazu Kobayashi, Yohei Watanabe, Junji Shikata

Proceedings of the Cryptography and Coding - 18th IMA International Conference, 2021

Efficient Threshold Public Key Encryption from the Computational Bilinear Diffie-Hellman Assumption.

Masahiro Ebina, Jumpei Mita, Junji Shikata, Yohei Watanabe

Proceedings of the 8th on ASIA Public-Key Cryptography Workshop, 2021

Anonymous Broadcast Authentication for Securely Remote-Controlling IoT Devices.

Yohei Watanabe, Naoto Yanai, Junji Shikata

Proceedings of the Advanced Information Networking and Applications, 2021

2020

Key-updatable public-key encryption with keyword search (Or: How to realize PEKS with efficient key updates for IoT environments).

Hiroaki Anada, Akira Kanaoka, Natsume Matsuzaki, Yohei Watanabe

Int. J. Inf. Sec., 2020

A Key Recovery Algorithm Using Random Key Leakage from AES Key Schedule.

Tomoki Uemura, Yohei Watanabe, Yang Li, Noriyuki Miura, Mitsugu Iwamoto, Kazuo Sakiyama, Kazuo Ohta

Proceedings of the International Symposium on Information Theory and Its Applications, 2020

On the Power of Interaction in Signcryption.

Junichi Ida, Junji Shikata, Yohei Watanabe

Proceedings of the International Symposium on Information Theory and Its Applications, 2020

2019

Multi-Party Computation for Modular Exponentiation Based on Replicated Secret Sharing.

Kazuma Ohara, Yohei Watanabe, Mitsugu Iwamoto, Kazuo Ohta

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019

Identity-based encryption with hierarchical key-insulation in the standard model.

Junji Shikata, Yohei Watanabe

Des. Codes Cryptogr., 2019

Identity-Based Encryption with Security Against the KGC: A Formal Model and Its Instantiation from Lattices.

Keita Emura, Shuichi Katsumata, Yohei Watanabe

Proceedings of the Computer Security - ESORICS 2019, 2019

2018

Timed-release computational secret sharing and threshold encryption.

Yohei Watanabe, Junji Shikata

Des. Codes Cryptogr., 2018

Card-Based Majority Voting Protocols with Three Inputs Using Three Cards.

Yohei Watanabe, Yoshihisa Kuroki, Shinnosuke Suzuki, Yuta Koga, Mitsugu Iwamoto, Kazuo Ohta

Proceedings of the International Symposium on Information Theory and Its Applications, 2018

Key-Updatable Public-Key Encryption with Keyword Search: Models and Generic Constructions.

Hiroaki Anada, Akira Kanaoka, Natsume Matsuzaki, Yohei Watanabe

Proceedings of the Information Security and Privacy - 23rd Australasian Conference, 2018

2017

CCA-secure revocable identity-based encryption schemes with decryption key exposure resistance.

Yuu Ishida, Junji Shikata, Yohei Watanabe

Int. J. Appl. Cryptogr., 2017

Lattice-based Revocable Identity-based Encryption with Bounded Decryption Key Exposure Resistance.

Atsushi Takayasu, Yohei Watanabe

IACR Cryptol. ePrint Arch., 2017

Broadcast Encryption with Guessing Secrecy.

Yohei Watanabe

Proceedings of the Information Theoretic Security - 10th International Conference, 2017

Unconditionally secure searchable encryption.

Takahiro Yoshizawa, Yohei Watanabe, Junji Shikata

Proceedings of the 51st Annual Conference on Information Sciences and Systems, 2017

2016

Cryptography with Timed Access Control.

Yohei Watanabe

PhD thesis, 2016

Information-theoretically Secure Timed-release Secret Sharing Schemes.

Yohei Watanabe, Junji Shikata

J. Inf. Process., 2016

Unconditionally Secure Broadcast Encryption Schemes with Trade-Offs between Communication and Storage.

Yohei Watanabe, Junji Shikata

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

Unconditionally Secure Revocable Storage: Tight Bounds, Optimal Construction, and Robustness.

Yohei Watanabe, Goichiro Hanaoka, Junji Shikata

IACR Cryptol. ePrint Arch., 2016

New Revocable IBE in Prime-Order Groups: Adaptively Secure, Decryption Key Exposure Resistant, and with Short Public Parameters.

Yohei Watanabe, Keita Emura, Jae Hong Seo

IACR Cryptol. ePrint Arch., 2016

Sequential aggregate authentication codes with information theoretic security.

Shinichiro Tomita, Yohei Watanabe, Junji Shikata

Proceedings of the 2016 Annual Conference on Information Science and Systems, 2016

2015

Identity-based Hierarchical Key-insulated Encryption without Random Oracles.

Yohei Watanabe, Junji Shikata

IACR Cryptol. ePrint Arch., 2015

Keyword Revocable Searchable Encryption with Trapdoor Exposure Resistance and Re-generateability.

Keita Emura, Le Trieu Phong, Yohei Watanabe

Proceedings of the 2015 IEEE TrustCom/BigDataSE/ISPA, 2015

Constructions of Unconditionally Secure Broadcast Encryption from Key Predistribution Systems with Trade-Offs Between Communication and Storage.

Yohei Watanabe, Junji Shikata

Proceedings of the Provable Security, 2015

Constructions of CCA-Secure Revocable Identity-Based Encryption.

Yuu Ishida, Yohei Watanabe, Junji Shikata

Proceedings of the Information Security and Privacy - 20th Australasian Conference, 2015

2014

Timed-Release Secret Sharing Scheme with Information Theoretic Security.

Yohei Watanabe, Junji Shikata

CoRR, 2014

Timed-Release Computational Secret Sharing Scheme and Its Applications.

Yohei Watanabe, Junji Shikata

Proceedings of the Provable Security - 8th International Conference, 2014

Timed-Release Secret Sharing Schemes with Information Theoretic Security.

Yohei Watanabe, Junji Shikata

Proceedings of the Cryptography and Information Security in the Balkans, 2014

2013

Information-Theoretically Secure Entity Authentication in the Multi-user Setting.

Shogo Hajime, Yohei Watanabe, Junji Shikata

Proceedings of the Information Security and Cryptology - ICISC 2013, 2013

Information-Theoretically Secure Aggregate Authentication Code: Model, Bounds, and Constructions.

Asato Kubai, Junji Shikata, Yohei Watanabe

Proceedings of the Security Engineering and Intelligence Informatics, 2013

2012

Information-Theoretic Timed-Release Security: Key-Agreement, Encryption, and Authentication Codes.

Yohei Watanabe, Takenobu Seito, Junji Shikata

IACR Cryptol. ePrint Arch., 2012