AES Implementation in Coldfusion 5.0

Hi All,
I am trying to implement 128 bit AES encryption in Coldfusion 5.0,
for that I am creating two CFX custom tags , one for encryption and one
for decryption. CFX tags are created using Customtag wizard in VC++.

http://cfhub.com/forum/attachments/cfxwiz_vc50.awx
http://www.macromedia.com/cfusion/webforums/forum/messageview.cfm?catid=7&threadid=1040943&highli

ght_key=y&keyword1=encrypt
AES Implementaion C++ : http://www.codeproject.com/cpp/aes.asp
Encryption tag works perfectly, after the encryption ,encrypted value is stored
inside the database.later it is retrieved and passed to the decryption tag.
Encryption tag : <CFX_AES3 encVal="encVal" plaintext="#TestParam#" Key="#MyKey#">
Decryption tag: <CFX_AES_DEC decVal="decVal" eString="#GetImage.IMG#" Key="#MyKey#">

Encryption Program:


try
{
// Retrieve attributes passed to the tag
// Write output back to the user here...
pRequest->Write( "Hello from CFX_AES1!<br>" ) ;
LPCSTR lpszVariable = pRequest->GetAttribute("encVal");
LPCSTR lpszEStr = pRequest->GetAttribute("plaintext");
LPCSTR lpszKey = pRequest->GetAttribute("key");
try
{
CRijndael oRijndael;

pRequest->Write("Input String :<br>");
pRequest->Write(lpszEStr);

pRequest->Write("<br>Key in Encryption:");
pRequest->Write( lpszKey );


oRijndael.MakeKey(lpszKey, CRijndael::sm_chain0, 16, 16);
char szDataIn[49];
strcpy(szDataIn,lpszEStr);

char szDataOut[49];
memset(szDataOut, 0, 49);

oRijndael.Encrypt(szDataIn, szDataOut, 48);
pRequest->SetVariable(lpszVariable,szDataOut);

}

DECRYPTION Program:
try
{
// Retrieve attributes passed to the tag
// Write output back to the user here...
pRequest->Write( "Hello from CFX_AES_DEC!<br>" ) ;
LPCSTR lpszVariable = pRequest->GetAttribute("decVal") ;
LPCSTR lpszEStr = pRequest->GetAttribute( "eString" );
LPCSTR lpszKey = pRequest->GetAttribute("key");
try
{
CRijndael oRijndael;
char szDataIn[49];
char szDataOut[49];

oRijndael.MakeKey(lpszKey, CRijndael::sm_chain0, 16, 16);

pRequest->Write("Input String :<br>");
pRequest->Write(lpszEStr);

pRequest->Write("<br>Key in Decryption:");
pRequest->Write( lpszKey );
memset(szDataIn, 0,49);
memset(szDataOut, 0, 49);

strcpy(szDataIn,lpszEStr);

pRequest->Write("<br>After strcpy() :<br>");
pRequest->Write(szDataIn);
//oRijndael.Decrypt((szDataIn,szDataOut);
oRijndael.Decrypt(lpszEStr,szDataOut,48);
pRequest->SetVariable( lpszVariable,szDataOut );
}



Problem is that Decryption program gives the wrong output.

Thanks in Advance
CFDYN

Never used the tag before so I won't be able to help on this. Best bet would probably be to try and contact the original creator.

I have created these CFX custom tags, my problem is more to do with the Decryption , has any one done this before?