English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The Internet of Things (IoT) is a technology trend that has been evolving in recent years. With the development of sensing technology and communication technology, the various applications of IoT are integrated into our lives gradually. Various security issues also need to be resolved with the convenience brought to us by IoT. MQTT or MQTT-SN is a lightweight communication protocol in IoT, which is more compactly on sensor nodes with limited resources. This paper provides a secure connection and end-to-end encrypted communication method which is based on MQTT-SN. By using digital signature (ECDSA), hash function, key exchange (ECDHE), AEAD (ChaCha20-Poly1305) to achieve a safe version of MQTT-SN called Safe MQTT-SN. The Safe MQTT-SN enables an end-to-end encrypted communication between the subscriber and publisher. The implementation of these algorithms enable the Safe MQTT-SN to have good performance on sensor nodes with limited computing power. Comparing with mosquito MQTT-TLS, the handshake time of MQTT-TLS is about 56.12ms and Safe MQTT-SN is about 24.78ms on Zedboard.

Safe MQTT-SN: a lightweight secure encrypted communication in IoT