[openssl-users] CMS questions

Richard Welty rwelty at nwtime.org
Fri May 1 13:21:08 UTC 2015


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On 2/24/15 10:10 AM, Dr. Stephen Henson wrote:
> So the embedded content type will be enveloped data?
>
> If so first you can check that type using CMS_get0_eContentType().
>
> Then you can use CMS_get0_content() to retrieve the embedded content as a
> pointer to an OCTET STRING pointer. You should check that content is
not NULL
> and then retrieve the encoding of the content using ASN1_STRING_data and
> ASN1_STRING_length.
>
> Once you have those you can decode using d2i_CMS_ContentInfo().
>
ok, i'm not understanding how i supply the private key for decrypting
the enveloped data in this scenario.

thanks,
   richard
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