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News

2.20.2017
The paper entitled “Unconditionally Secure Searchable Encryption” by Yoshizawa, Dr. Watanabe(Univ. of Electro-Communications) and Prof. Shikata was accepted at CISS2017.
The paper entitled “Numerical Analysis of Elias's and Peres's Deterministic Extractors” by Prasitsupparote, Prof. Konno and Prof. Shikata was accepted at CISS2017.
The paper entitled “Timed-Release Computational Secret Sharing Scheme and Threshold Encryption” by Dr. Watanabe(Univ. of Electro-Communications) and Prof. Shikata was published by Designs, Codes and Cryptography.
6.8.2016
The paper entitled "Unconditionally Secure Revocable Strage: Tight Bounds, Optimal Construction, and Robustness" by Dr. Watanabe(Univ. of Electro-Communications), Dr. Hanaoka(AIST) and Prof. Shikata was accepted at ICITS 2016.
3.16.2016
Tomita presented his paper at CISS 2016.
3.7.2016
Watanabe presented his paper at PKC 2016.
1.18.2016
“Unconditionally Secure Broadcast Encryption Schemes with Trade-offs between Communication and Storage” by Watanabe and Prof. Shikata was published online by IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences.
1.12.2016
“Sequential Aggregate Authentication Codes with Information Theoretic Security” by Tomita, Watanabe and Prof. Shikata was accepted at CISS 2016.
12.16.2015
Goto presented his paper at IMACC 2015.
12.14.2015
“Identity-based Hierarchical Key-insulated Encryption without Random Oracles” by Watanabe and Prof. Shikata was accepted at PKC 2016.
11.26.2015
Watanabe presented his paper at ProvSec 2015.
8.31.2015
“A Compiler of Two-Party Protocols for Composable and Game-Theoretic Security, and Its Application to Oblivious Transfer ” by Goto and Prof. Shikata was accepted at IMACC 2015.
“Constructions of Unconditionally Secure Broadcast Encryption from Key Predistribution Systems with Trade-offs between Communication and Storage ” by Watanabe and Prof. Shikata was accepted at ProvSec 2015 (as a short paper).
6.1.2015
“Keyword Revocable Searchable Encryption with Trapdoor Exposure Resistance and Re-generateability ” by Watanabe, Keita Emura (NICT), and Le Trieu Phong (NICT) was accepted at TrustCom 2015.
4.7.2015
“Constructions of CCA-secure Revocable Identity-based Encryption ” by Ishida, Watanabe, and Prof. Shikata was accepted at ACISP 2015.
4.1.2015
“Construction of symmetric-key encryption with guessing secrecy” by Prof. Shikata and Prof. Iwamoto (Univ. of Electro-Communications) was accepted at ISIT2015.
1.9.2015
The invited paper entitled “Trends and Development of Information-Theoretic Cryptography” by Prof. Shikata was published online by IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences.
10.27.2014
Watanabe presented his papers at ProvSec 2014 and BalkanCryptSec 2014, respectively.
9.17.2014
“Timed-Release Secret Sharing Schemes with Information Theoretic Security” by Watanabe and Prof. Shikata was accepted at BalkanCryptSec2014
8.29.2014
Watanabe and Prof. Shikata won the best poster award for their poster entitled “Information-Theoretically Secure Revocable-Storage Broadcast Encryption” at IWSEC 2014.
8.5.2014
“Timed-Release Computational Secret Sharing Scheme and Its Applications” by Watanabe and Prof. Shikata was accepted at ProvSec2014 (as a short paper).
4.16.2014
“Secret Sharing Schemes Based on Min-Entropies” by Prof. Shikata and Prof. Iwamoto (Univ. of Electro-Communications) was accepted at ISIT2014.
12.19.2013
Nakano presented his paper at IMACC2013.
11.29.2013
Hajime presented his paper at ICISC2013.
11.28.2013
Prof. Shikata presented his paper at ICITS2013.
11.22.2013
Takei and Watanabe respectively presented their paper at 3rd ISEEE.
11.4.2013
Prof. Shikata and Mr. Watanabe were invited as guest speakers and gave a talk respectively at JSPS-DST Asian Academic Seminar 2013.
10.25.2013
Updated Publications.
9.27.2013
Updated Publications.
9.2.2013
Watanabe presented his paper at MoCrySEn2013 (held in conjunction with ARES2013).
7.12.2013
Prof. Shikata presented his paper at ISIT2013.
4.23.2013
Made websites.