Hello Mailinglist,
I have looked through the mailing archive and found some hints. One was to look
at xmlsec1. At this moment I dont get xmlsec1 running. But I found the function
xmlSecAppEncryptTmpl(). I have created an example (see below). I use it in
encrypt2.c instead of function encrypt_file().
// The Idea of this func is to create dynamicaly a complete new encryption
template
// and to use this template to encrypt ONLY SOME sub nodes in the file of param
xml_file.
int EncryptFile_New(const char* xml_file, const char* key_file) {
xmlDocPtr doc=0, docTmpl=0;
xmlNodePtr encDataNode=0, keyInfoNode=0, NodeToEncrypt=0;
xmlSecEncCtxPtr encCtx=0;
// Create dynamical a new template:
docTmpl = xmlNewDoc(BAD_CAST "1.0");
encDataNode = xmlSecTmplEncDataCreate(docTmpl,
xmlSecTransformDes3CbcId, 0, 0, 0, 0);
xmlDocSetRootElement(docTmpl, encDataNode);
xmlSecTmplEncDataEnsureCipherValue(encDataNode);
keyInfoNode = xmlSecTmplEncDataEnsureKeyInfo(encDataNode, NULL);
xmlSecTmplKeyInfoAddKeyName(keyInfoNode, NULL);
// Load the key:
encCtx = xmlSecEncCtxCreate(NULL);
encCtx->encKey = xmlSecKeyReadBinaryFile(xmlSecKeyDataDesId, key_file);
xmlSecKeySetName(encCtx->encKey, (const unsigned char *)key_file);
// Encrypt:
doc = xmlParseFile(xml_file);
// If I get this code running, I will replace the following code with a
function
// that searches for the sub nodes I want to encrypt.
NodeToEncrypt = xmlDocGetRootElement(doc);
xmlSecEncCtxXmlEncrypt(encCtx, encDataNode, NodeToEncrypt);
xmlDocDump(stdout, doc);
// Cleanup:
encDataNode = NULL;
if(encCtx != NULL)
xmlSecEncCtxDestroy(encCtx);
if(encDataNode != NULL)
xmlFreeNode(encDataNode);
if(doc != NULL)
xmlFreeDoc(doc);
return 0;
}
If I start it, I get this error:
#####################################
func=xmlSecEncCtxXmlEncrypt:file=..\src\xmlenc.c:line=417:obj=unknown:subj=unknown:error=14:invalid
type:type=NULL;last error=1008 (0x000003f0);last error msg=Es wurde versucht,
auf ein Token zuzugreifen, das nicht vorhanden ist.
#####################################
To translate the last message: There was a try to access a token that was not
there.
Will this way work at all?
Can someone give me a hint what I'm doing wrong?
Regards
Martin
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