On Wed, Jul 19, 2017, Justin Mogannam wrote: > > 2) Once again, I'm looking in openssl/cms.h, and I could not find the > function prototype " d2i_CMS_ContentInfo". I even did a grep on the whole > directory. Is it located somewhere else? I have OpenSSL 1.0.1, which is > after 0.9.8 when the function was added to OpenSSL. > See: https://www.openssl.org/docs/faq.html#PROG13 > 3) In looking at the function prototype (via > https://www.openssl.org/docs/man1.0.2/crypto/d2i_CMS_ContentInfo.html): > CMS_ContentInfo *d2i_CMS_ContentInfo(CMS_ContentInfo **a, unsigned char > **pp, long length); > I'm assuming **pp is just a pointer to the array with the DER-encoded > certificate in it? I just want to make sure since some of the parameter > names are a little ambiguous in OpenSSL. > > I'm assuming once I'm able to get the DER-encoded certificate in a CMS > object, I can use the function you provided and the ones in cms.h to strip > off "layers" of the certificate to get the encryptedKeyPackage that I want > (which, of course as you mentioned, I'll be able to handle the rest from > there). Thank you very much for your response, as it was very helpful, and I > hope to get just as useful of a response back! > I'm not sure what you mean by "certificate" here. The structure you mentioned will be a CMS ContentInfo. Anyway see: https://www.openssl.org/docs/faq.html#PROG3 for details about how to decode the DER form. Steve. -- Dr Stephen N. Henson. OpenSSL project core developer. Commercial tech support now available see: http://www.openssl.org -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
