From: Rick DeNatale <rick.denatale@...>
Date: 2007-12-14T05:03:46+09:00
Subject: Re: Help with OpenSSL RSA

On 12/13/07, Shandy Nantz <shandybleu@yahoo.com> wrote:
> yermej wrote:
> > On Dec 13, 9:24 am, Shandy Nantz <shandyb...@yahoo.com> wrote:
> >> >     @public_modulus  = session[:public_modulus]
> >> Did this ever get resolved? This is the exact problem that I am trying
> >> to solve. Thanks,
> >>
> >> -S
> >> --
> >> Posted viahttp://www.ruby-forum.com/.
> >
> > This seems to work if you want it as a hex string:
> >
> > key = OpenSSL::PKey::RSA.new(1024)
> > private_key = key.to_pem
> > public_modulus = key.public_key.n.to_s(16)
> > public_exponent = key.public_key.e.to_s(16)
>
> This does work thank you. Does anyone know how to get at all the parts
> that make up a public key such as the inverse? Thanks

I'm pretty sure that you can't extract the inverse from a public key.

The whole point of a public/private key pair is that it's extremely
difficult to compute the private key from the public key.


-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/