Abstract
For security and privacy, people are increasingly interested in adopting blockchain technology in the Internet of Things (IoT). Blockchain technology may improve privacy by keeping the IoT transactions anonymous, and at the same time establish agreements between untrusted nodes in the network, eliminating the need to use trusted intermediaries. However, as IoT devices frequently send transactions in the blockchain network, the security of the device's private key becomes extremely important, especially when the device is exposed to a white box attack environment. In this article, we introduce a white-box Schnorr signature scheme to protect the private key security of IoT devices, which significantly improves security. Through real experiments, we have evaluated the performance of the scheme, and the results show that the proposed scheme has high efficiency and value.
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