Comments by Member 10657083 (Top 31 by date)

To go into more detail the progress report function does not do anything.

The Full code
http://pastebin.com/P7EJFg5s
The code that causes the error and the error it's self
http://pastebin.com/PEBZVvy1

error C2039: 'UserData': is not a member of 'System::ComponentModel::ProgressChangedEventArgs'

What does UserData refer to?

ok thanks

I will post the full code next time, also the program is meant to encrypt files. In order for that to happen quickly it requires the use of more than one thread.
It's a bit like having a tower made out of 8 blocks, you can move them all at once but that is slow. Instead you pull it apart and move it in 8 parts using 8 trucks.

In my first attempt it was which you can see above. Their is a losses of data the second their is corruption of data. That was made clear in the post above.

I would suggest testing it

I'll explain it once more how can a break a string into 8 parts and then put those 8 parts into a vector. I have tried to do this but it does not work, is that a good enough explanation.

I will try to explain it again I am trying to store an entire string in 8 parts into a vector.
Let say you have 8 numbers like so
12345678
What I have tried to do is break the string into 8 parts no matter the size.
There could be even say 1000 characters my intention is for the program to adjust to assign data evenly to the vector.
So again you take your data
12345678
then
vector[0] = 1
vector[1] = 2
vector[2] = 3
vector[3] = 4
vector[4] = 5
vector[5] = 6
vector[6] = 7
vector[7] = 8
It is really that simple but making it work is not. That is why I am here how can I make this work I've tried doing so without any luck in the past.

The splitbreak function that is in the code is meant to do that. However it does not function to do so.

Oh wait
void runTest()
{
string data(12500000,'0');
for(int i = 0; i != 8; i++){ram[i] = data;}

key = "faaf";
mode = "E";
// Before it all
for(int i = 0; i != 8; i++)
{
writeDataToFile("before",ram[i]);
cout << "Before " << i << endl;
system("pause");
}
startCores();
// After encode
for(int i = 0; i != 8; i++)
{
writeDataToFile("after",ram[i]);
cout << "After " << i << endl;
system("pause");
}
mode = "D";
startCores();
// After decode
for(int i = 0; i != 8; i++)
{
writeDataToFile("end",ram[i]);
cout << "End " << i << endl;
system("pause");
}
cout << "All seems to be well";
}


This test proves you are wrong

So my code functions correctly in the sense it reads the file. However the strangeness of multi threading prevents it from working is that the case.

Then explain how the startCores function works to me because clearly I don't understand anything.

I ran a test and it runs fine multi threaded. The crypto++ side of it at least.
http://pastebin.com/wE3meSXs
I'll try rewiring the program to see if that helps, if anyone had ideas than post below.

The debuger did not provide any information. But it is worth noting that I compiled the program via command line. But I ran a little test and the result was rather interesting.

string data = "faaf networks is faaf";
string out;
stringAesCypher test;
test.encode(data,"1234",out);
test.decode(out,"1234",data);

out.resize(16);
test.decode(out,"1234",data);// the crash starts here

From this test the program will crash at the last decode function, should the ciphertext be bad. I don't know why it does this when with other ciphers it does not.

I strongly believe that the problem lies within my code. The reason for this is because the encode and decode functions for AES are proven. Crypto++ is pretty solid and I have had no issues with it. However if you feed it bad cipher text it crashes the program. For that reason I have come to the conclusion that it is due to my code. However I am have yet to be able to pinpoint the issue with my code. Their are no compiler errors with my code, however the program does crash during decryption likely due to the bad cyphertext. I simply do not know where the issue lies in what I have written so far and that is why I am here. I do not know how to correct this problem.

The Answer was right in front of me thank you.

Full code for future reference should someone need it.
http://pastebin.com/r7Up00A3

Ok but how would that look in with this snipet. How would you keep the client in this situation running and ready to receive data from the server.

int inDataLength=recv(Socket,data,1000,0);
cout << data << endl;

According the VS2015 debugger it's invalid cipher text. However it does decrypt during run time as long as you run the function while its encrypting. http://pastebin.com/5FLUXu5K

ok

I took your advice and it still crashes.
void encodeFile(string inputFileName,string outputFileName,string keyFileName)
{
ifstream fileStreamIn(inputFileName,ios::binary);
ofstream fileStreamOut(outputFileName,ios::binary);
size_t read_buffer(342);
char readBuffer[385];
string strBuf1(read_buffer,'\0');
string cypherBuf("");
// Sets the array
for(int i = 0; i != read_buffer + 1; i++)
{
readBuffer[i] = '\0';
}

while(fileStreamIn)
{
// Reads and gives sizes
fileStreamIn.read(readBuffer, read_buffer);
size_t count = fileStreamIn.gcount();
// Loads the array into the string
for(int i = 0; i != read_buffer; i++)
{
strBuf1[i] = readBuffer[i];
}
strBuf1.resize(count);// Changes for the actual size of the data
/**/
encode(strBuf1,cypherBuf,keyFileName);
/**/
//fileStreamOut.write(strBuf1.c_str(),strBuf1.length());
fileStreamOut.write(cypherBuf.c_str(),cypherBuf.length());
cypherBuf.resize(0);
if (!count)
break;
}
fileStreamIn.close();
fileStreamOut.close();
}
void decodeFile(string inputFileName,string outputFileName,string keyFileName)
{
ifstream fileStreamIn(inputFileName,ios::binary);
ofstream fileStreamOut(outputFileName,ios::binary);
size_t read_buffer(384);
char readBuffer[385];
string strBuf1(read_buffer,'\0');
string cypherBuf("");
// Sets the array
for(int i = 0; i != read_buffer + 1; i++)
{
readBuffer[i] = '\0';
}

while(fileStreamIn)
{
// Reads and gives sizes
fileStreamIn.read(readBuffer, read_buffer);
size_t count = fileStreamIn.gcount();
// Loads the array into the string
cypherBuf = "";
strBuf1 = "";
for(int i = 0; i != read_buffer; i++)
{
strBuf1[i] = readBuffer[i];
}
strBuf1.resize(count);// Changes for the actual size of the data
// encoder goes here
/**/
decode(strBuf1,cypherBuf,keyFileName);
/**/
//fileStreamOut.write(strBuf1.c_str(),strBuf1.length());
fileStreamOut.write(cypherBuf.c_str(),cypherBuf.length());
cypherBuf.resize(0);
if (!count)
break;
}
fileStreamIn.close();
fileStreamOut.close();
}

ok ty

I plan to rewrite the code using the char array as the buffer. But how would that look on the code above I am not sure how to implement that.