[xmlsec] transform question

[Aleksey Sanin]

To be honest with you I do not understand what are you doing.
Do you want to do this as a part of signature process or you
are doing it in some separate application?

In the first case, it would be much better to register your new
transform in xmlsec (check transform.h for registeration functions)
and then just put reference to your new transform in the signature
template.

Aleksey

hungpq at volny.cz wrote:

> Hi Aleksey,
> is possible to insert further transform during executing as I
> did? If not, what is a correct way
> to perform some cannonicalization included in some transform?
> 
> thanks,
> P.Q.Hung
> 
> P.S. Method int strTransformExecute(...) is executing function of
> str transform klass
> - used by default  popBin/pushBin/popXml/pushXml methods.
> 
> ----- Original Message ----- 
> From: <hungpq at volny.cz>
> To: <xmlsec at aleksey.com>
> Sent: Tuesday, April 13, 2004 3:23 PM
> Subject: [xmlsec] transform question
> 
> 
> 
>>Hi all,
>>can some of you tell me what 's wrong I have done?
>>I am implementing STR transform for web services security. This
>>transform does something, then perform canonicalization at the
>>end.
>>When running the program failed after performin c14n transform,
>>file "c14n.c", line 273, ret = xmlOutputBufferClose(buf).
>>
>>I am using xmlSeclib version 1.2.1, windows platform.
>>
>>Thank you in advance,
>>P.Q.Hung
>>
>>The following is my code, that enables canonicalization after
> 
> str > transform. ----------------
> 
>>int strTransformExecute(xmlSecTransformPtr transform, int last,
>>xmlSecTransformCtxPtr transformCtx){
>>
>>    // connect canonicalization
>>    xmlSecTransformPtr canTransform =
>>xmlSecTransformCreate(xmlSecTransformExclC14NId);
>>
>>    int ret;
>>    if(!transform->next){
>>        ret = xmlSecTransformCtxAppend(transformCtx,
>>canTransform);         if(ret) return -1;
>>    }
>>    else{
>>        xmlSecTransformPtr canNext = transform->next;
>>        ret = xmlSecTransformConnect(transform, canTransform,
>>transformCtx);         if(!ret) ret =
>>xmlSecTransformConnect(canTransform, canNext, transformCtx);
>>        if(ret) return -1;
>>    }
>>
>>    // perform transform
>>    ....
>>}
>>
>>----------
>>
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>>
> 
> 
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