Re: [openssl-users] QcStatements with OpenSSL (C++)?

[Matthias Ballreich]

thanks :)

But can you explain how i got the concrete data like QCStatement? Because there 
is no defined structure in OpenSSL like for example CRLDistributionPoints. So 
which structure and functions i have to use, to get the matching data?

QCStatement ::= SEQUENCE {

  statementId   QC-STATEMENT.({SupportedStatements}),
  statementInfo QC-STATEMENT.
  ({SupportedStatements}{@statementId}) OPTIONAL }

thanks again!


Von: openssl-users <openssl-users-boun...@openssl.org> im Auftrag von lists 
<li...@rustichelli.net>
Gesendet: Mittwoch, 26. April 2017 17:06:58
An: openssl-users@openssl.org
Betreff: Re: [openssl-users] QcStatements with OpenSSL (C++)?

On 04/17/2017 06:40 PM, Matthias Ballreich wrote:

Hi there,

can OpenSSL pasre QcStatement X509v3 Extension btw. Did OpenSSL Support these?
Any Piece of example Code of how can i parse the data?


To my knowledge, there is direct support for the qcStatements, you must parse 
it yourself.
I asked for some help on the list more or less a month ago, I was trying to 
develop the required structures but apparently I got lost in the OpenSSL macro 
jungle, finally I had to quit working on it.
What you can do is search for specific statements of interest to you (there are 
quite a bit) by parsing the attribute.
Get the attribute NID of the object in the extension and see if it matches the 
NID of qcStatements:

oneObj = X509_EXTENSION_get_object(oneExt);
objnid = OBJ_obj2nid(theObj);
if (objnid == NID_qcStatements)
  { printf("DEBUG:ext:GOTCHA!:this is qcStatements!\n"); }

you then extract the data from the object and parse it.
For the moment I have this ugly quick way of doing it, for instance for a 
simple one:

#define UC_id_etsi_qcs_QcCompliance "0.4.0.1862.1.1"

  if (strstr(extdump, UC_id_etsi_qcs_QcCompliance) == NULL)
{ printf("INFO:QcCompliance:no:\n"); }
  else
{ printf("INFO:QcCompliance:yes:\n"); }



Thanks
Matthias


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Re: [openssl-users] QcStatements with OpenSSL (C++)?

[lists]

On 04/17/2017 06:40 PM, Matthias Ballreich wrote:


Hi there,

can OpenSSL pasre QcStatement X509v3 Extension btw. Did OpenSSL 
Support these?


Any Piece of example Code of how can i parse the data?



To my knowledge, there is direct support for the qcStatements, you must 
parse it yourself.
I asked for some help on the list more or less a month ago, I was trying 
to develop the required structures but apparently I got lost in the 
OpenSSL macro jungle, finally I had to quit working on it.
What you can do is search for specific statements of interest to you 
(there are quite a bit) by parsing the attribute.
Get the attribute NID of the object in the extension and see if it 
matches the NID of qcStatements:


oneObj = X509_EXTENSION_get_object(oneExt);
objnid = OBJ_obj2nid(theObj);
if (objnid == NID_qcStatements)
  { printf("DEBUG:ext:GOTCHA!:this is qcStatements!\n"); }

you then extract the data from the object and parse it.
For the moment I have this ugly quick way of doing it, for instance for 
a simple one:


#define UC_id_etsi_qcs_QcCompliance "0.4.0.1862.1.1"

  if (strstr(extdump, UC_id_etsi_qcs_QcCompliance) == NULL)
{ printf("INFO:QcCompliance:no:\n"); }
  else
{ printf("INFO:QcCompliance:yes:\n"); }




Thanks

Matthias


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[openssl-users] QcStatements with OpenSSL (C++)?

[Matthias Ballreich]

Hi there,

can OpenSSL pasre QcStatement X509v3 Extension btw. Did OpenSSL Support these?
Any Piece of example Code of how can i parse the data?

Thanks
Matthias
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