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University of Tsukuba
(13 results)-
White Papers
Memory Management of Density-Based Spam Detector
January 1, 2009, 12:00am PST
The volume of mass unsolicited electronic mail, often known as spam, has recently increased enormously and has become a serious threat to not only the Internet but also to society. A new spam...
Provided by University of Tsukuba
-
White Papers
K-Cave Demonstration: Seismic Information Visualization System Using the OpenCABIN Library
December 3, 2008, 12:00am PST
The K-Cave is a CAVE-clone VR display system at the Keio University. It consists of 3 screens, 6 projectors, 3 rendering PCs and a control PC. Binocular parallax is achieved by circular...
Provided by University of Tsukuba
-
White Papers
Enhancement of e-Commerce Via Mobile Accesses to the Internet
June 4, 2009, 12:00am PDT
The potential of the Internet has been expanded substantially by a new generation of mobile devices, opening the door for rapid growth of m-commerce. While the traditional PC access to the...
Provided by University of Tsukuba
-
White Papers
Ecient Implementation of Tate Pairing on a Mobile Phone Using Java
August 24, 2006, 12:00am PDT
PairingBased Cryptosystems (PBC) has been attracted by researchers in cryptography. Some implementations show that PBC are relatively slower than the standard public key cryptosystems. This paper...
Provided by University of Tsukuba
-
White Papers
Pair-Wise Cryptographic Models for Secure Data Exchange in P2P Database Management Systems
February 17, 2010, 12:00am PST
A Peer-to-Peer Database Management System (P2PDBMS) is a collection of autonomous data sources, called peers. In this system each peer augments a conventional database management system with an...
Provided by University of Tsukuba
-
White Papers
Beauty Contests And Asset Prices Under Asymmetric Information
January 24, 2010, 12:00am PST
In this paper, the authors study a dynamic Gaussian financial market model in which the traders form higher-order expectations about the fundamental value of a single risky asset. Rational...
Provided by University of Tsukuba
-
White Papers
A Low-Area Unified Hardware Architecture for the AES and the Cryptographic Hash Function ECHO
February 22, 2011, 12:00am PST
The authors propose a compact coprocessor for the AES (encryption, decryption, and key expansion) and the cryptographic hash function ECHO on Virtex-5 and Virtex-6 FPGAs. The architecture is built...
Provided by University of Tsukuba
-
White Papers
New Cryptosystems From CSP-Based Self-Distributive Systems
April 16, 2010, 12:00am PDT
The authors propose new cryptosystems based on self-distributive systems that are defined by Conjugator Searching Problems (CSP) in noncommutative groups. Under the newly developed cryptographic...
Provided by University of Tsukuba
-
White Papers
Strongly Unforgeable ID-Based Signatures Without Random Oracles
April 15, 2009, 12:00am PDT
In this paper, the authors construct a strongly unforgeable ID-based signature scheme without random oracles. The signature size of the scheme is smaller than that of other schemes based on...
Provided by University of Tsukuba
-
White Papers
An Efficient ID-Based Digital Signature With Message Recovery Based on Pairing
June 7, 2006, 12:00am PDT
Signature schemes with message recovery have been wildly investigated a decade ago in the literature, but the first ID-based signature with message recovery goes out into the world until 2005. In...
Provided by University of Tsukuba
-
White Papers
A Subject-Delegated Decryption Scheme With "Tightly" Limited Authority
October 12, 2006, 12:00am PDT
In this paper, the authors present a new proxy cryptosystem named subject-delegated decryption scheme, in which the original decryptor delegates decryption authority to multiple proxies according...
Provided by University of Tsukuba
-
White Papers
Maximize Lifetime of Heterogeneous Wireless Sensor Networks With Joint Coverage and Connectivity Requirement
February 3, 2007, 12:00am PST
In this paper, the authors address the problem of lifetime maximization under coverage and connectivity requirements for heterogeneous wireless sensor networks where different targets need to be...
Provided by University of Tsukuba
-
White Papers
A Multi-Modal Framework for Achieving Accountability in Multi-Agent Systems
September 15, 2010, 12:00am PDT
The authors present a multi-modal, model-theoretic framework for achieving accountability in multi-agent systems through formal proof. Their framework provides modalities for knowledge,...
Provided by University of Tsukuba
-
White Papers
A Multi-Modal Framework for Achieving Accountability in Multi-Agent Systems
September 15, 2010, 12:00am PDT
The authors present a multi-modal, model-theoretic framework for achieving accountability in multi-agent systems through formal proof. Their framework provides modalities for knowledge,...
Provided by University of Tsukuba
-
White Papers
Maximize Lifetime of Heterogeneous Wireless Sensor Networks With Joint Coverage and Connectivity Requirement
February 3, 2007, 12:00am PST
In this paper, the authors address the problem of lifetime maximization under coverage and connectivity requirements for heterogeneous wireless sensor networks where different targets need to be...
Provided by University of Tsukuba
-
White Papers
A Subject-Delegated Decryption Scheme With "Tightly" Limited Authority
October 12, 2006, 12:00am PDT
In this paper, the authors present a new proxy cryptosystem named subject-delegated decryption scheme, in which the original decryptor delegates decryption authority to multiple proxies according...
Provided by University of Tsukuba
-
White Papers
An Efficient ID-Based Digital Signature With Message Recovery Based on Pairing
June 7, 2006, 12:00am PDT
Signature schemes with message recovery have been wildly investigated a decade ago in the literature, but the first ID-based signature with message recovery goes out into the world until 2005. In...
Provided by University of Tsukuba
-
White Papers
Strongly Unforgeable ID-Based Signatures Without Random Oracles
April 15, 2009, 12:00am PDT
In this paper, the authors construct a strongly unforgeable ID-based signature scheme without random oracles. The signature size of the scheme is smaller than that of other schemes based on...
Provided by University of Tsukuba
-
White Papers
New Cryptosystems From CSP-Based Self-Distributive Systems
April 16, 2010, 12:00am PDT
The authors propose new cryptosystems based on self-distributive systems that are defined by Conjugator Searching Problems (CSP) in noncommutative groups. Under the newly developed cryptographic...
Provided by University of Tsukuba
-
White Papers
A Low-Area Unified Hardware Architecture for the AES and the Cryptographic Hash Function ECHO
February 22, 2011, 12:00am PST
The authors propose a compact coprocessor for the AES (encryption, decryption, and key expansion) and the cryptographic hash function ECHO on Virtex-5 and Virtex-6 FPGAs. The architecture is built...
Provided by University of Tsukuba
-
White Papers
Beauty Contests And Asset Prices Under Asymmetric Information
January 24, 2010, 12:00am PST
In this paper, the authors study a dynamic Gaussian financial market model in which the traders form higher-order expectations about the fundamental value of a single risky asset. Rational...
Provided by University of Tsukuba
-
White Papers
Pair-Wise Cryptographic Models for Secure Data Exchange in P2P Database Management Systems
February 17, 2010, 12:00am PST
A Peer-to-Peer Database Management System (P2PDBMS) is a collection of autonomous data sources, called peers. In this system each peer augments a conventional database management system with an...
Provided by University of Tsukuba
-
White Papers
Ecient Implementation of Tate Pairing on a Mobile Phone Using Java
August 24, 2006, 12:00am PDT
PairingBased Cryptosystems (PBC) has been attracted by researchers in cryptography. Some implementations show that PBC are relatively slower than the standard public key cryptosystems. This paper...
Provided by University of Tsukuba
-
White Papers
Enhancement of e-Commerce Via Mobile Accesses to the Internet
June 4, 2009, 12:00am PDT
The potential of the Internet has been expanded substantially by a new generation of mobile devices, opening the door for rapid growth of m-commerce. While the traditional PC access to the...
Provided by University of Tsukuba
-
White Papers
K-Cave Demonstration: Seismic Information Visualization System Using the OpenCABIN Library
December 3, 2008, 12:00am PST
The K-Cave is a CAVE-clone VR display system at the Keio University. It consists of 3 screens, 6 projectors, 3 rendering PCs and a control PC. Binocular parallax is achieved by circular...
Provided by University of Tsukuba
-
White Papers
Memory Management of Density-Based Spam Detector
January 1, 2009, 12:00am PST
The volume of mass unsolicited electronic mail, often known as spam, has recently increased enormously and has become a serious threat to not only the Internet but also to society. A new spam...
Provided by University of Tsukuba
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