Google's PSP Encryption Protocol Lands in Linux 6.18

Google's PSP Security Protocol, an in-transit encryption protocol for TCP network connections, is merging into the mainline Linux 6.18 kernel. After thirteen review rounds, this support for encrypting data in transit is slated for inclusion. Designed for simplicity and scalability compared to IPsec, Google's PSP is currently only implemented for Mellanox MLX5 NICs. While it supports various modes including tunneling, its primary focus is as a more efficient TLS replacement leveraging superior offload capabilities.