Re: [Caml-list] Implementing JWT RS256 verification

[Malcolm Matalka <mmatalka@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1426 bytes --]

I am hoping something already exists in Ocaml rather than create new
bindings.

Den tis 19 feb. 2019 06:50Robert Roessler <robertr@rftp.com> skrev:

> Malcolm Matalka wrote:
> > Hello,
> >
> > I'm trying to implement verification of JWT's signed with RS256 and
> > having some trouble finding the crypto library I should use for this.
> > Nocrypt and CryptoKit are the obvious choices by searching opam, however
> > neither of them seem to quite have what I'm looking for.  RS256 is RSA
> > with SHA256 and something called PKCS1v1.5 for padding.  I see both of
> > these libraries have RSA options but it doesn't seem possible to specify
> > the hashing algorithm.  Nocrypto has a PKCS1v1.5 module in the RSA
> > module but no hash.  When I call [sig_decode] on my message I get back
> > a message text but it also doesn't seem to match what I'm expecting.
> >
> > My input is the message, the signed signature, and the public key, and
> > I'd like to know verify these match correctly.
> >
> > I really don't know much about crypto and am just trying to implement a
> > spec.  Anyone have a suggestion for what library I should use?  Am I
> > just missing something?
> >
> > Thanks,
> > /Malcolm
>
> Have you looked at Crypto++ (aka CryptoPP)?  It is a fairly complete
> library with "lots" of users.
>
> https://www.cryptopp.com/wiki/Main_Page
>
> Regards,
> --
> Robert Roessler
> robertr@rftp.com
> http://www.rftp.com
>

[-- Attachment #2: Type: text/html, Size: 2149 bytes --]