Search

Electronic healthcare (e-health) has gained more and more research attention in recent years, due to its flexibility and convenience. E-health is efficiently enabled by telecare medicine information system (TMIS). TMIS provides seamless transfer and timely sharing of medical information for specific healthcare services. Since communications in TMIS are carried out through unreliable channels, data security and user privacy concerns become prominent. With traditional single-server architecture, users must store massive credentials, which causes inefficient communication and significant overhead. Moreover, user credentials in previously proposed schemes are stored at server side, suffering potential risks. Our work proposes a three-factor user-controlled single sign-on (UCSSO) with fast authentication and privacy protection for TMIS. The contributions of this paper are as follows. Our work integrates three factors including password, smart card and biometrics in authentication procedure, for providing a high-security and privacy-preserved communication. We introduce single sign-on solution that allows users to log in to multiple servers using a single password. User-controlled mechanism is proposed to address insider attacks and the risk that registration center may be compromised. The proposed scheme is designed with fast authentication mechanism that helps to efficiently establishes new session key. Our work is proved secure using BAN logic, ROR model, and AVISPA toolset. The results of performance comparison show that our scheme provides more security properties and bears the least overhead, compared with competitive schemes.

Wearable devices are the most frequently used personal devices, in ail of wearable devices, the smart phones are the most popular and rapid development. The evolution of wearable devices such as smartphones will accelerate the development of Internet of Things (IoT). Furthermore, user can use the IoT services easily through the smartphone or wearing device. However, if the communication between the wearable device and other devices does not have enough access control and information protect, it may cause some problems, such as the data may be stolen and modified. In this paper, we presented an end-to-end authenticated key exchange agreement for wearable devices in IoT environments. The protocol can satisfy some properties of key exchange agreement and be used with wearable devices in IoT environments.

With the progress of information technology, the computer crimes are emerging in an endless stream. User's privacy should be protected. When a user submits a service request to a service provider, both should check the identity of each other and build a shared key to accomplish the service request. Furthermore, when a conference is held, the chairman must verify the identities of all participants. Afterwards, the chairman chooses a conference key and distributes it to legitimate participants. Besides, the participants should know who is in the conference. These manners prevent the malicious adversary from eavesdropping or impersonating to get some benefits. From mentioned above, we adopt identity-based cryptosystem and elliptic curve cryptosystem to propose a privacy-preserved conference key distribution protocol.

Wearable devices become the most personal devices nowadays. The smartphone may become a second screen Internet of Things (IoT) future shaped by wearable devices as wearable devices get smarter. Wearable devices can accelerate speed of leading users to IoT, and the entrance of IoT will be wearable devices. A setback in wearable devices adoption might delay the overall adoption of the IoT among users, such as security issues. Service providers may utilize identity authentication and secure communication protocols for ensuring legitimacy of users and information transferring security. In this paper, we presented an end-to-end authenticated key exchange agreement for wearable devices in IoT environments. The protocol can satisfy some properties of key exchange agreement and be used with wearable devices in IoT environments.

Stoke is the second of causes of deaths on the earth and the third of the top ten in Taiwan. About 70% of stoke patients can restore walking ability through rehabilitation, and 50% of stoke patients can live with daily life. In this paper, we designed and evaluated a user-centered stroke rehabilitation games. We used Information Systems Research (ISR) framework as guideline which Schnall et al. proposed, and we designed and developed stroke rehabilitation games based on clinical knowledge with virtual reality technology. Finally, we evaluated usability and acceptability through qualitative interviews.

With the progress of information technology, thecomputer crimes are emerging in an endless stream. It is because of the user's privacy should be protected, when the user submit a service request to the service provider, both of them should check the identity of the other, and then build a shared key to accomplish the service request. In this paper, we adopt the identity-based cryptosystem and the elliptic curve cryptosystem to design a privacy-preserved key agreement with user authentication. This protocol can achieve several properties: mutual authentication, deniability, and forward secrecy. Besides, the performance of the proposed protocol based on RSA is better than previous studies.

In a single-server mobile network, authorized users can dynamically login to the server for requiring internet services or resources. A password authenticated key exchange protocol can be used to authenticate user's legitimacy and establish a secure communication between a user and his logon server by using his friendly memorized password. In generally, users can dynamically access internet resources and services from multiple servers via mobile networks. However, it is difficult for users and servers to easily and securely manage passwords and secret keys in multi-server mobile networks. This paper proposes a password authenticated key exchange protocol for multi-server mobile networks based on Chebyshev chaotic map. Properties of the proposed protocol are given below. (i) The user can easily memorize a single password to login different servers without the assistance of a trusted registration authority. (ii) The user can share distinct secret information with different servers, and hence a malicious server cannot use it to masquerade as the user to login the other server(s). (iii) It is secure against some potential attacks. (iv) An authenticated key shared between the user and the server can be established for securing their communications. (v) It can provide key confirmation for the shared session key. (vi) It can provide higher security assurance in generating secret keys.

In September 2011, the MArine Cable Hosted Observatory (MACHO) was launched in the northeastern sea off Taiwan for surveillance of submarine earthquakes, tsunami, and the ocean environment. The MACHO system, administrated by the Central Weather Bureau, is the first submarine observatory for various science research projects in Taiwan. Based on the MACHO system, we plan to have the marine observatory in the northeast Taiwan (MONET) focused on physical oceanography and ocean acoustics. This paper presents some preliminary results from the data collection of the CTD and acoustic data in the MACHO system. The CTD data show the daily fluctuations due to interactions between the tide and bathymetry. Event detection presents three underwater noise mechanisms, which are earthquake, shipping, and marine mammal. Moreover, we offer an e-research platform for future data exhibition and communication between scientists.

We describe the design and analysis of 3D-MAPS, a 64-core 3D-stacked memory-on-processor running at 277 MHz with 63 GB/s memory bandwidth, sent for fabrication using Tezzaron's 3D stacking technology. We also describe the design flow used to implement it using industrial 2D tools and custom add-ons to handle 3D specifics.

The main assignment of wafer transport automation in cluster-tools equipment is to transfer wafer between chambers and cassettes automatically. However, the operation of cluster-tools must be done in the clean room in consideration of the cleaning requirement, technology support of operator, and maintenance of equipment. With remote monitoring and e-diagnostics technology, an operator can monitor the procedures of wafer transport, the statuses of equipment, and more remote diagnosing/control of cluster-tools via Internet. Thus, it will be useful for maintenance, diagnosis, and productivity improvement. Besides, it can also use statistical process control system to predict the status of equipment. This system will know in advance whether the equipment is going to fail or not. The operator can handle the problems earlier with the prediction of the status of equipment. This research discusses the capability requirement of remote monitoring and diagnosing system for cluster-tools equipment. The CCD camera can take a picture when the arm goes into chamber. The data will be saved into SQL Server after program recognize the image and calculate the height of front arm. Then, use statistical process control to get capability of accuracy, capability of process, and process capability of the equipment. These three indexes will show the operator the status of equipment. Operator can call the engineer to check and fix the equipment ahead of time to avoid an accident when the index displayed a failing tendency. It will achieve the capability of e-diagnostics prediction.