package rfc7748
Edwards Curves X25519 and X448 from RFC 7748
Install
Dune Dependency
Authors
Maintainers
Sources
v1.0-rc2.tar.gz
sha256=3f63cb002d1ca83390a31ae4721dda926ca7045e424c7c0e038895aef836278c
md5=63d367245f45171feb8ee7027e0b2ace
Description
This library implements the ECDH functions 'X25519' and 'X448' as specified in RFC 7748, 'Elliptic curves for security'. In the spirit of the original publications, the public API is kept as simple as possible to make it easy to use and hard to misuse.
The current version is written in plain OCaml, leveraging Zarith for integer arithmetic. While this makes the implementation straightforward and easy to reason about, the performance is nowhere near that of DJB's implementation using floating point registers (https://cr.yp.to/ecdh.html).
Published: 06 Dec 2018
README
OCaml-RFC7748
Elliptic curves for cryptographic purposes, based on RFC 7748.
Usage
The API contains documentation. Example use:
open Rfc7748
let _ =
let priv = X25519.private_key_of_string
"a546e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449ac4" in
let pub = X25519.public_key_of_string
"e6db6867583030db3594c1a424b15f7c726624ec26b3353b10a903a6d0ab1c4c" in
X25519.scale priv pub
|> X25519.string_of_public_key
|> Printf.printf "c3da55379de9c6908e94ea4df28d084f32eccf03491c71f754b4075577a28552\n == \n%s"
License
BSD 2-clause, see license.
On This Page