Hi and thanks for your continued help! Meanwhile I did indeed define the syntax of the extension and get my way through to the leaf being an ASN1_OBJECT representing the professionOID. Now my lack of knowledge strikes back:
I want to check, whether a professionOID of "1.2.276.0.76.4.88" is included in the extension. What I get from i2d_ASN1_OBJECT(profoid, NULL) is plain and simple "9". I still fail to find the method that will present this notation of an OID... Mit freundlichen Grüßen / Kind regards Natanael Mignon ________________________________________ Von: owner-openssl-us...@openssl.org [owner-openssl-us...@openssl.org] im Auftrag von Dr. Stephen Henson [st...@openssl.org] Gesendet: Samstag, 22. August 2009 13:50 An: openssl-users@openssl.org Betreff: Re: Accessing unknown certificate extensions by OID Yes you can call X509_EXTENSION_get_data() to get the encoded extension as an ASN1_OCTET_STRING structure. From that ASN1_STRING_length() and ASN1_STRING_data() will get you the data itself. Then it is ASN1 parsing time... there are numerous examples in the OpenSSL code itself, see crypto/cms/cms_asn1.c for a more recent one. Once you have an appropriate ASN1 module you can use d2i_foo() (or whatever you call it) to decode the data you extracted above. Steve. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
