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Title |
A Security Architecture For Use In Mobile Medical And Electronic Health |
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Author |
Mostafa Akhavansaffar and Mehran Aghaei |
| Citation |
Vol. 26 No. 6 pp. 151-166 |
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Abstract |
E-health and providing health services is one of the areas of science and technology with an increasingly growth in health - care area in the world. In this system, all health services ranging from the patient’s electronic file, telemedicine, evidence-based medicine, informing the citizens and informing the professionals and virtual medicine teams are provided. However, due to high importance of sending confidential data through communication lines in electronic systems, including telemedicine medical and probable irreparable damage in failure to address security issues and possible attacks, designing the security mechanisms before using such systems seems vital and necessary. Hence, in this paper, a secure and low-risk model for use in telemedicine systems is suggested using cryptography and safe functions. One of its features besides having high security includes using a lightweight asymmetrical cryptographic system rather than conventional methods and heavy encryption systems. To demonstrate the usefulness of the proposed protocol, we needed to design it in such a way to be used with available wireless technologies and Internet. Actually, the proposed protocol comparing with the current authentication systems, which use the public key encryption algorithms with heavy computing, increases the security of mobile health systems without having to do heavy computations meanwhile simplifying the process of mutual authentication. The system provides the security requirements for mobile medical systems by using the lightweight cryptographic functions such as symmetric encryption and hash functions. In this paper, a new protocol for bidirectional authentication and exchange of session keys for use in mobile medical systems was proposed. It has all services of a mobile medical system without increasing the size of calculations with minimal computational requirements and it providing high security. |
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Keywords |
Telemedicine, Authentication, Mobile health, Security . |
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Title |
Content-Based Image Retrieval Based on High Level Labels |
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Author |
Karimidastgerdi Amin |
| Citation |
Vol. 26 No. 6 pp. 151-166 |
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Abstract |
Text-based and content-based retrieval are considered as two main approaches of the image-based retrieval. Challenges faced by both approaches direct researchers toward combined approaches and semi-automatic retrieval by the collaboration of the user in the cycle of retrieval specifically in the field of medical issues. Therefore, in this paper, a system of image retrieval is introduced which provides user with two types of query based on keywords and images. After retrieval of the initial results, proposed system performs retrieval operation in a semantic manner and semi-automatically using feedbacks received from the user and high level semantic tags allocated to the images. By means of a hierarchical ST and a type of learning by user feedbacks, system is able to respond to diverse queries in the field of image retrieval. According to tests, proposed system is of acceptable precision. |
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Keywords |
ST, image retrieval, learning, lung |
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