Marc Aymerich <glicer...@gmail.com> writes:

> Thank you very much Piet, 
> I'm just starting to grasp these cryptography related concepts and your code 
> is helping me a lot to understand how to handle these keys in a low level.
>
> I'm updating my code incorporating your new contribution!
>
> Just to let you know, during my previous research I had found a python-Crypto 
> related solution that also uses DER and ASN.1 [1], but it uses a different 
> approach (I guess). I suspect that this approach is also possible with 
> M2Crypto because it has a method for constructing RSA keys [2]. 
>
> [1] http://stackoverflow.com/a/10574723
> [2] 
> http://www.heikkitoivonen.net/m2crypto/api/M2Crypto.RSA-module.html#new_pub_key
>
new_pub_key could be used but then you would have to do an ASN.1 parse
of the DER format of your key to get the n and e values. AFAICT M2Crypto
doesn't have methods to do this, so you would need to use one of the
python ASN.1 libraries (or write that part yourself).
-- 
Piet van Oostrum <p...@vanoostrum.org>
WWW: http://pietvanoostrum.com/
PGP key: [8DAE142BE17999C4]
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