Using Kernel TLS (kTLS) and TLS NIC offloading with OpenSSL 2023-01-09 Context Traditionally, the data path for sending HTTPS traffic is: Read data from a file into a user-space buffer Encrypt that data using a user-space cryptography routine Send that encrypted data to a socket The data is copied to a kernel-space socket buffer The kernel sends the encrypted data to the NIC The NIC writes the encrypted data to the wire With Kernel TLS, this becomes: Read data from a file into a user-space buffe...