scholarly journals Secure Multi-Keyword Search and Access Control over Electronic Health Records in Wireless Body Area Networks

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Yong Ding ◽  
Hui Xu ◽  
Yujue Wang ◽  
Fang Yuan ◽  
Hai Liang

Wireless body area network (WBAN) consists of a number of sensors that are worn on patients to collect dynamic e-health records (EHRs) and mobile devices that aggregate EHRs. These EHRs are encrypted at mobile devices and then uploaded to the public cloud for storage and user access. To share encrypted EHRs with users effectively, help users retrieve EHRs accurately, and ensure EHRs confidentiality, a secure multi‐keyword search and access control (SMKS-AC) scheme is proposed, which implements encrypted EHRs access control under the ciphertext-policy attribute-based encryption (CP-ABE). SMKS-AC provides multi‐keyword search for accurate EHRs retrieval, supports the validation of decrypted EHRs, and traces and revokes the identity of users who leak private key. Security analysis shows that SMKS-AC is secure against chosen keyword and chosen plaintext attacks. Through theoretical analysis and experimental verification, the proposed SMKS-AC scheme requires less storage resources and computational costs on mobile devices than existing schemes.

2018 ◽  
Vol 1 (5) ◽  
pp. e25 ◽  
Author(s):  
Anyembe Andrew Omala ◽  
Ikram Ali ◽  
Fagen Li

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1088 ◽  
Author(s):  
Mohammad Ali ◽  
Mohammad-Reza Sadeghi ◽  
Ximeng Liu

Wireless Body Area Network (WBAN) is a highly promising technology enabling health providers to remotely monitor vital parameters of patients via tiny wearable and implantable sensors. In a WBAN, medical data is collected by several tiny sensors and usually transmitted to a server-side (e.g., a cloud service provider) for long-term storage and online/offline processing. However, as the health data includes several sensitive information, providing confidentiality and fine-grained access control is necessary to preserve the privacy of patients. In this paper, we design an attribute-based encryption (ABE) scheme with lightweight encryption and decryption mechanisms. Our scheme enables tiny sensors to encrypt the collected data under an access control policy by performing very few computational operations. Also, the computational overhead on the users in the decryption phase is lightweight, and most of the operations are performed by the cloud server. In comparison with some excellent ABE schemes, our encryption mechanism is more than 100 times faster, and the communication overhead in our scheme decreases significantly. We provide the security definition for the new primitive and prove its security in the standard model and under the hardness assumption of the decisional bilinear Diffie-Hellman (DBDH) problem.


2021 ◽  
Author(s):  
Hailong Yao ◽  
Qiao Yan ◽  
Xingbing Fu ◽  
Zhibin Zhang ◽  
Caihui Lan

Abstract The E-healthcare system has a complex architecture, diverse business types, and sensitive data security. To meet the secure communication and access control requirements in the user-medical server, user-patient, patient-medical server and other scenarios in the E-healthcare system, secure and efficient authenticated key agreement and access authorization scheme need to be studied. However, the existing multi-server solutions do not consider the authentication requirements of the Wireless Body Area Network(WBAN), and are not suitable for user-patient, patient-medical server scenarios; most of the existing WBAN authentication scheme are single-server type, which are difficult to meet the requirements of multi-server applications; the study of user-patient real-time scenarios has not received due attention. This work first reveals the structural flaws and security vulnerabilities of the existing typical schemes, and then proposes an authentication and access control architecture suitable for multiple scenarios of the E-healthcare system with separate management and business, and designs a novel ECC-based multi-factor remote authentication and access control scheme for E-healthcare using physically uncloneable function (PUF) and hash. Security analysis and efficiency analysis show that the new scheme has achieved improved functionality and higher security while maintaining low computational and communication overhead.


2018 ◽  
pp. 55-58
Author(s):  
Hendro FJ Lami ◽  
Stephanie Imelda Pella

Protokol media access control (MAC) berperan menjamin keberhasilan transmisi data antar sensor nirkabel dan konsumsi daya pada Wireless Body Area Network (WBAN). Penelitian ini membandingkan unjuk kerja dua buah protocol MAC, yaitu T-MAC dan ZigbeeMAC pada sistem WBAN, pada laju kedatangan paket (λ) yang berbeda. Hasil simulasi menunjukan bahwa pada jaringan dengan λ rendah tingkat keberhasilan pengiriman paket antara protocol T-MAC dan ZigbeeMAC mencapai rata-rata 90% dari throughput maksimal walaupun pada kondisi tersebut kinerja ZigbeeMAC memiliki nilai lebih baik dibanding T-MAC. Pada laju kedatangan paket tinggi, throughput pada T-MAC memiliki perbedaan yang signifikan terhadap ZigbeeMAC. Pada keadaan terburuk troughput T-MAC adalah 88% dari throughput maksimal sedangkan Zigbee menurun hingga 43% dari throughput maksimal. Kosumsi daya pada ZigbeeMAC cenderung konstan untuk setiap laju kedatangan paket sedangkan pada T-MAC meningkat sejalan dengan pertambahan laju kedatangan paket.  


2018 ◽  
Vol 42 (6) ◽  
Author(s):  
Anyembe Andrew Omala ◽  
Angolo Shem Mbandu ◽  
Kamenyi Domenic Mutiria ◽  
Chunhua Jin ◽  
Fagen Li

2019 ◽  
Vol 15 (7) ◽  
pp. 155014771986155 ◽  
Author(s):  
Nasser-Eddine Rikli ◽  
Areej Al-Mazroa

The IEEE 802.15.6 standard emerged as the most suitable standard that fits the special requirements of wireless body area networks. It provides flexibility to designers by recommending the use of several medium access control layer techniques, but does not specify how to combine some or all these recommended techniques to form the most efficient wireless body area network medium access control for a specific scenario. Our goal here is to design a wireless body area network medium access control that provides an optimal combination of these basic techniques that are available in the standard, by taking into consideration the variability and heterogeneity of the sensors. The performance of the proposed techniques is evaluated using some of the standard performance measures such as throughput, delay, and energy consumption.


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