Re: [MirageOS-devel] OCaml bindings for EC2 API

[Hannes Mehnert <hannes@xxxxxxxxxxx>]

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Hi Jyotsna,

On 07/17/2014 19:48, Jyotsna Prakash wrote:
> For my GSoC project I've been working on OCaml bindings to the EC2
> API. The code is at https://github.com/moonlightdrive/ocaml-ec2

Awesome!

> I've yet to launch a Mirage-backed VM without using the Amazon's
> CLI tools. The process involves producing an xml manifest
> describing an image; the manifest contains fields of RSA encrypted
> data. Problem is, I don't have any way to take my public keys (pem
> files) and turn them into `Cryptokit.RSA.key`s.

AFAICS you're only using SHA256 from Cryptokit so far -- you might
want to use ocaml-sha (https://github.com/vincenthz/ocaml-sha) for that.

Also, David wrote ocaml-nocrypto
(https://github.com/mirleft/ocaml-nocrypto) and we further developed
ocaml-x509 (https://github.com/mirleft/ocaml-x509/) where you can
parse pem to get a certificate
(https://github.com/mirleft/ocaml-x509/blob/master/lib/x509.mli#L18)
or a private key (RSA)
https://github.com/mirleft/ocaml-x509/blob/master/lib/x509.mli#L30
(example usage:
https://github.com/mirleft/ocaml-tls/blob/master/lwt/x509_lwt.ml#L49)

What do you need to do with the RSA key? The nocrypto API is at
https://github.com/mirleft/ocaml-nocrypto/blob/master/src/rsa.mli


Cheers,

Hannes

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