Re: gpgsm/openssl cms detached signatures verification fails

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On 15/05/2017 17:54, Andreas Fenkart wrote:
Hi list,
I'm experimenting with openssl/gnupg interoperability. It seems the
least common multiple is cms. I didn't find a way to produce output
with opengpg to work with 'openssl dgst' directly. Am I wrong, is
there a simpler way?
...
The :messageDigest hash codes are the same for detached/non-detached
but the :rsaEncryption differ (salt, timestamp?) The messageDigest
does not match the output from sha256sum

Repeating the some for the gpgsm genarated signatures, I can see that
the messageDigest matches directly the output of sha256sum.

So openssl cms/gpgsm compute the sha256sum differently in the detached case.
Is there a hidden flag to make either tool behave like the other?
Look at the documentation of the openssl cms "-inform SMIME",
"-outform SMIME" and "-binary" options.


Enjoy

Jakob
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