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Re: pkcs7 signing

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  Re: pkcs7 signing Robin Becker <robin@reportlab.com> - 2014-11-05 10:14 +0000
    Re: pkcs7 signing Irmen de Jong <irmen.NOSPAM@xs4all.nl> - 2014-11-05 18:25 +0100

#80255 — Re: pkcs7 signing

On 05/11/2014 06:40, dieter wrote:
> Robin Becker <robin@reportlab.com> writes:
>
>> Is there a way to do pkcs7 / 12 signing with python.
>
> Have you checked whether "OpenSSL" supports this kind of signing?
> If it does, then you likely can use this via several Python wrappings
> for "OpenSSL".
>
I checked that the openssl library does have a call for this, however, I cannot 
see this exposed in either the cryptography or py2crypto packages. The code may 
be in there, but I don't see it obviously exposed. I think m2crypto might do the 
job, but building it for windows is a pain and I probably have to build it 6 
times ie 32 & 64 bits x 2.7 3.3 & 3.4. There are pre-built versions of openssl, 
but that's also a moving target right now.
-- 
Robin Becker

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#80281

On 5-11-2014 11:14, Robin Becker wrote:
> On 05/11/2014 06:40, dieter wrote:
>> Robin Becker <robin@reportlab.com> writes:
>>
>>> Is there a way to do pkcs7 / 12 signing with python.
>>
>> Have you checked whether "OpenSSL" supports this kind of signing?
>> If it does, then you likely can use this via several Python wrappings
>> for "OpenSSL".
>>
> I checked that the openssl library does have a call for this, however, I cannot see this
> exposed in either the cryptography or py2crypto packages. The code may be in there, but
> I don't see it obviously exposed. I think m2crypto might do the job, but building it for
> windows is a pain and I probably have to build it 6 times ie 32 & 64 bits x 2.7 3.3 &
> 3.4. There are pre-built versions of openssl, but that's also a moving target right now.

If you've got no luck with a direct openssl library, you can also call the openssl.exe
binary and capture its results back into Python. You'll have to install something on
windows to get that executable though.


Irmen

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