The practical employment of network coding (NC) has shown major improvements when it comes to the transmission reliability of sender data and bandwidth utilization. Moreover, network coding has been employed recently to secure the transmission of data and prevent unauthorized recovery of sender packets. In this paper, we employ network coding (NC) in a practical way in networks with constrained resources with the goal of improving the reliability and security of data transfer. More specifically, we apply NC on the recent options of block-wise transfer (BWT) of the constrained application protocol (CoAP). The goal is to enhance the reliability of CoAP when used to transfer larger data blocks using BWT. Also, we employ an innovative homomorphic encryption approach to secure the BWT of CoAP.

中文翻译：

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在 CoAP 分块传输中使用网络编码确保传输安全，同时增强通信可靠性

网络编码（NC）的实际应用在发送方数据的传输可靠性和带宽利用率方面显示出重大改进。此外，最近已采用网络编码来保护数据传输并防止未经授权的恢复发送方数据包。在本文中，我们在资源有限的网络中以实用的方式采用网络编码（NC），以提高数据传输的可靠性和安全性。更具体地说，我们将 NC 应用于约束应用协议 (CoAP) 的块式传输 (BWT) 的最新选项。目标是在使用 BWT 传输较大数据块时增强 CoAP 的可靠性。此外，我们采用创新的同态加密方法来保护 CoAP 的 BWT。