Roberto Sassu [writes on the devel list](https://lists.sequoia-pgp.org/hyperkitty/list/devel@lists.sequoia-pgp.org/thread/ZU64CWYZ26OH5TH6PR3BBLDYDDZ6COLH/): > Another point would be to avoid external dependencies, like a crypto > library, and to use the kernel Crypto API instead (through > socket(AF_ALG) in user space). There are some crates for using kernel crypto API: - https://crates.io/crates/linux-kcapi - https://crates.io/crates/kcapi Investigate the amount of work required to implement this new crypto backend.