8,641 research outputs found
REISCH: incorporating lightweight and reliable algorithms into healthcare applications of WSNs
Healthcare institutions require advanced technology to collect patients' data accurately and continuously. The tradition technologies still suffer from two problems: performance and security efficiency. The existing research has serious drawbacks when using public-key mechanisms such as digital signature algorithms. In this paper, we propose Reliable and Efficient Integrity Scheme for Data Collection in HWSN (REISCH) to alleviate these problems by using secure and lightweight signature algorithms. The results of the performance analysis indicate that our scheme provides high efficiency in data integration between sensors and server (saves more than 24% of alive sensors compared to traditional algorithms). Additionally, we use Automated Validation of Internet Security Protocols and Applications (AVISPA) to validate the security procedures in our scheme. Security analysis results confirm that REISCH is safe against some well-known attacks
On the Security of Cryptographic Protocols Using the Little Theorem of Witness Functions
In this paper, we show how practical the little theorem of witness functions
is in detecting security flaws in some category of cryptographic protocols. We
convey a formal analysis of the Needham-Schroeder symmetric-key protocol in the
theory of witness functions. We show how it helps to teach about a security
vulnerability in a given step of this protocol where the value of security of a
particular sensitive ticket in a sent message unexpectedly plummets compared
with its value when received. This vulnerability may be exploited by an
intruder to mount a replay attack as described by Denning and Sacco.Comment: Accepted at the 2019 IEEE Canadian Conference on Electrical &
Computer Engineering (CCECE) on March 1, 201
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