I am very disappointed in Crypto++ 5.4 - two days ago i have
downloaded latest release of this library from www.cryptopp.com and
used public cryptography algorithms in my application. I have used
RSA cryptography and I discovered memory leaks in Constructor of
RSAES_OAEP_SHA_Encryptor when I want to use RSAES_OAEP_SHA_Decryptor
as input parameter to that constructor. I check this by reusing simple
example from "test.cpp" of generation RSA keys. I have created MFC
Dialog application and override btnOKClick with this code:
//-----------------------------
........
#include "randpool.h"
#include "rsa.h"
#include "hex.h"
#include "files.h"
.......
//---------------------------------
void CCryptoMfcTestDlg::OnBnClickedOk()
{
using namespace std;
using namespace CryptoPP;
RandomPool randPool;
char * seed="this is seed string";
randPool.Put((byte *)seed, strlen(seed));
string privFilename = "11.bin";
string pubFilename = "11pub.bin";
RSAES_OAEP_SHA_Decryptor priv(randPool,1024);
HexEncoder privFile(new FileSink(privFilename.c_str()));
priv.DEREncode(privFile);
privFile.MessageEnd();
RSAES_OAEP_SHA_Encryptor pub(priv); // ---> here is memory
leaks
// lines below can be commented - memory leaks is allready created
HexEncoder pubFile(new FileSink(pubFilename.c_str()));
pub.DEREncode(pubFile);
pubFile.MessageEnd();
}
//-------------------
My observation of RSA implementation is that all classes with
Constructor with parameter CryptoMaterial &m - cause memory leaks - 2
leaks for each constructor
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