| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
| IT |
2006-05-23
16:20 |
Nara |
Nara-ken new public hall |
Local Weight Distribution of the (256, 93) Third-Order Binary Reed-Muller Code
Kenji Yasunaga, Toru Fujiwara (Osaka Univ.), Tadao Kasami (NAIST) |
Local weight distribution is the weight distribution of minimal codewords in linear codes. We give the local weight dist... [more] |
IT2006-6
pp.31-36 |
| IT |
2006-05-24
16:20 |
Nara |
Nara-ken new public hall |
Performance Analysis of Ordered Statistics Decoding for Error Correction in Digital Watermarking
Ting-ting Liu (Osaka Univ.), Hitoshi Tokushige (Univ. of Tokushima), Toru Fujiwara (Osaka Univ.) |
Digital watermarking is used to protect the copyright. An error correcting code can be used to correct errors when water... [more] |
IT2006-12
pp.29-34 |
| ISEC, IPSJ-CSEC, SITE |
2005-07-22
16:10 |
Iwate |
Iwate Prefectural University |
Reducing Communication Complexity of the Private Data Retrieval Protocol with Consistent Results
Satoshi Nakayama, Maki Yoshida, Shingo Okamura, Akira Fujiwara, Toru Fujiwara (Osaka Univ.) |
A data retrieval protocol between a database server, who has a database,
and a user, who has an index, allows the user... [more] |
ISEC2005-61
pp.129-136 |
| ISEC, IPSJ-CSEC, SITE |
2005-07-22
13:00 |
Iwate |
Iwate Prefectural University |
Improvement of the False Negative Error Probability for Correlation Based Watermark Detection Ensuring the False Positive Error Probability
Takaaki Fujita, Kunihiro Okamoto, Maki Yoshida, Toru Fujiwara (Osaka Univ.) |
To use results of watermark detection, a detection error probability is
required to be low enough.
We have derived ... [more] |
ISEC2005-65
pp.155-160 |
| IT |
2005-05-26
13:50 |
Overseas |
Univ. of Hawaii |
The Local Weight Distributions of Transitive Invariant Codes and Their Punctured Codes
Kenji Yasunaga, Toru Fujiwara (Osaka Univ.) |
The local weight distribution is the weight distribution of zero neighbors in a code. A zero neighbor is a codeword whos... [more] |
IT2005-14
pp.7-12 |
| IT |
2005-05-27
13:50 |
Overseas |
Univ. of Hawaii |
A Time-Limited Key Management Scheme Based on a One-Way Permutatin Tree
Maki Yoshida (Osaka Univ.), Yuichi Kaji (NAIST), Toru Fujiwara (Osaka Univ.) |
[more] |
IT2005-29
pp.41-46 |
| ISEC |
2004-12-17
13:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Time-Capsule Encryption
Maki Yoshida (Osaka Univ.), Shigeo Mitsunari (u10 Networks), Toru Fujiwara (Osaka Univ.) |
We have designed a new timed-release encryption, called time-capsule encryption, and implemented it. In our scheme, a ti... [more] |
ISEC2004-98
pp.1-5 |
| ISEC, LOIS |
2004-11-09
09:50 |
Osaka |
Osaka Univ. |
A Formal Method for finding the Lowest Cost Attack on Cryptographic Protocols
Takane Umayama, Maki Yoshida, Toru Fujiwara (Osaka Univ.) |
Various cryptographic protocols are proposed for providing secure services on computer network. Some cryptographic proto... [more] |
ISEC2004-87 OIS2004-54
pp.15-22 |
| DE, DC |
2004-10-19
14:00 |
Tokyo |
Tokyo Institute of Technology |
Schema update operations preserving the expressive power in XML databases
Kenji Hashimoto, Yasunori Ishihara, Toru Fujiwara (Osaka Univ.) |
This paper proposes schema update operations preserving the expressive power in XML databases. In this paper, the inform... [more] |
DE2004-118 DC2004-33
pp.25-30 |
| IT |
2004-07-29
09:55 |
Chiba |
Tokyo Univ. (Kashiwa) |
The local weight distributions of the (128,50) extended binary primitive BCH code and the (128,64) Reed-Muller code
Kenji Yasunaga, Toru Fujiwara (Osaka Univ.) |
The local weight distribution of a block code gives some aspects of its error performance. We obtained the local weight ... [more] |
IT2004-19
pp.7-12 |
| ISEC, IPSJ-CSEC |
2004-07-20
14:20 |
Tokushima |
Tokushima Univ. |
Reducing Frequency of Communication on the Consignment Delivering System Protecting Marketing Information
Akira Fujiwara, Shingo Okamura, Maki Yoshida, Toru Fujiwara (Osaka Univ.) |
A digital contents delivering system is considered, where contents providers consign delivering and charging to distribu... [more] |
ISEC2004-34
pp.143-150 |