The package rust-curve25519-dalek-4 4.2.0+dfsg-1 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/rust-curve25519-dalek-4 -- More information about rust-curve25519-dalek-4: https://pkg.kali.org/pkg/rust-curve25519-dalek-4
