Curve25519

modulename: curve25519-generic.ko

configname: CONFIG_CRYPTO_CURVE25519

Linux Kernel Configuration
└─>Cryptographic API
└─>Public-key cryptography
└─>Curve25519
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Curve25519 elliptic curve (RFC7748)

source code: