Let’s Encrypt is working on improving its security posture by transitioning critical software infrastructure to memory safe alternatives. While the CA software is written in memory safe Golang, the wider infrastructure uses unsafe languages like C and C++. The introduction of Prossimo in 2020 aims to address this issue, with the deployment of memory safe software such as ntpd-rs in Let’s Encrypt’s infrastructure. The project plans to replace other C or C++ software with memory safe alternatives in the coming years. This shift towards memory safety is seen as an important aspect of overall security, and Let’s Encrypt relies on contributions from its community to support these improvements.
https://letsencrypt.org/2024/06/24/ntpd-rs-deployment.html