Re: M2Crypto convert key from PEM to DER ?

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Hans Lellelid wrote, On 04/08/2009 01:02 AM:
> I'd like to use M2Crypto to to convert a server key from PEM format to =

> DER. Specifically, I'd like to replace the following openssl command:
>
> *openssl rsa =96in input.key =96inform PEM =96out output.key =96outform=
 DER
>
> I think I understand how to do something similar with the certs, but=20
> haven't figured out how to do this with just the private key. I'm sure =

> I'm missing something; can anyone provide any tips?

Using M2Crypto for that might be overkill, though it would be nice not=20
to have to write it from scratch every time.

Untested and mostly from memory which might be wrong:

pem =3D open('cert.pem')
der =3D ''.join(l.strip() for l in=20
pem.read().split('-----')[2].splitlines()).decode('base64')
open('cert.der', 'w').write(der)

/Mads


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