The node you've created
> oNode = xmlNewNode(0, "AboutBoxText");
was not assigned to any document. Check LibXML2 tutorial
for more details on constructing XML DOM tree using
LibXML2 functions.
Aleksey
Martin Salo wrote:
Hello Mailinglist,
I have a question about xmlSecEncCtxXmlEncrypt().
I have created the EncryptionContext and the Template nodes like in encyrpt2.c
example.
Then I have created the nodes (subtree) I want to decrypt. The return value of
the
encryption is -1. And the node is not encrypted. Why?
Error Message:
func=xmlSecEncCtxXmlEncrypt:file=..\src\xmlenc.c:line=366:obj=unknown:subj=node->doc
!= NULL:
error=100:assertion: ;last error=0 (0x00000000);last error msg=The action was
successfully.
I want to create this xml file, with the differnce that the <Server> node
should be
replaced with an encryption section:
<?xml version="1.0"?>
<ApplicationSettings>
<AboutBoxText>MyApp 1.0</AboutBoxText>
<Server>
<Url>www.abc.com</Url>
<Password>TopSecret</Password>
</Server>
</ApplicationSettings>
// Replace the encrypt_file() function in encrypt2.c with this fucntion:
int encrypt_file(const char* xml_file, const char* key_file) {
xmlNode *oNode=0, *oNodeFather=0, *oNodeToEncrypt=0, *oNodeTmpl=0;
xmlDoc *oNewDoc=0;
xmlNs *oNsSig=0, *oNsEnc=0, *oNsXsi=0;
xmlSecEncCtx *oEncCtx=0;
int retval=0;
// Create new xml file
oNewDoc = xmlNewDoc(BAD_CAST "1.0");
oNodeFather = xmlNewDocNode(oNewDoc, 0, BAD_CAST "ApplicationSettings",
0);
xmlDocSetRootElement(oNewDoc, oNodeFather);
// Add a plain node:
oNode = xmlNewNode(0, "AboutBoxText");
xmlNodeSetContent(oNode, "MyApp");
xmlAddChild(oNodeFather, oNode);
// Create nodes that should be encrypted:
oNodeToEncrypt = xmlNewNode(0, "ToEncrypt");
oNode = xmlSecAddChild(oNodeToEncrypt, "Server", 0);
xmlNodeSetContent(oNode, "www.abc.com");
oNode = xmlSecAddChild(oNodeToEncrypt, "Password", 0);
xmlNodeSetContent(oNode, "TopSecret");
// Create encryption template nodes:
oNodeTmpl = xmlSecTmplEncDataCreate(oNewDoc, xmlSecTransformDes3CbcId,
0, 0, 0, 0);
xmlSecTmplEncDataEnsureCipherValue(oNodeTmpl);
oNode = xmlSecTmplEncDataEnsureKeyInfo(oNodeTmpl, NULL);
xmlSecTmplKeyInfoAddKeyName(oNode, NULL);
// Create encryption context:
oEncCtx = xmlSecEncCtxCreate(NULL);
oEncCtx->encKey = xmlSecKeyReadBinaryFile(xmlSecKeyDataDesId, key_file);
xmlSecKeySetName(oEncCtx->encKey, (const unsigned char *)key_file);
// Do encryption:
retval = xmlSecEncCtxXmlEncrypt(oEncCtx, oNodeTmpl, oNodeToEncrypt);
xmlAddChild(oNodeFather, oNodeToEncrypt);
// Print result:
xmlDocDump(stdout, oNewDoc);
// Cleanup:
if(oEncCtx != NULL)
xmlSecEncCtxDestroy(oEncCtx);
if(oNodeTmpl != NULL)
xmlFreeNode(oNodeTmpl);
if(oNewDoc != NULL)
xmlFreeDoc(oNewDoc);
return 0;
}
_______________________________________________
xmlsec mailing list
xmlsec@aleksey.com
http://www.aleksey.com/mailman/listinfo/xmlsec
