/*

Derived from source code of TrueCrypt 7.1a, which is

Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed

by the TrueCrypt License 3.0.

Modifications and additions to the original source code (contained in this file)

and all other portions of this file are Copyright (c) 2013-2017 IDRIX

and are governed by the Apache License 2.0 the full text of which is

contained in the file License.txt included in VeraCrypt binary and source

code distribution packages.

*/

#include "System.h"

#include "Volume/EncryptionModeXTS.h"

#include "Main/GraphicUserInterface.h"

#include "BenchmarkDialog.h"

namespace VeraCrypt

{

BenchmarkDialog::BenchmarkDialog (wxWindow *parent)

: BenchmarkDialogBase (parent)

{

BenchmarkNoteStaticText->SetLabel (LangString["IDT_BOX_BENCHMARK_INFO"]);

BenchmarkNoteStaticText->Wrap (RightSizer->GetSize().GetWidth());

list <size_t> bufferSizes;

bufferSizes.push_back (1 * BYTES_PER_MB);

bufferSizes.push_back (5 * BYTES_PER_MB);

bufferSizes.push_back (10 * BYTES_PER_MB);

bufferSizes.push_back (50 * BYTES_PER_MB);

bufferSizes.push_back (100 * BYTES_PER_MB);

bufferSizes.push_back (200 * BYTES_PER_MB);

bufferSizes.push_back (500 * BYTES_PER_MB);

bufferSizes.push_back (1 * BYTES_PER_GB);

foreach (size_t size, bufferSizes)

{

BufferSizeChoice->Append (Gui->SizeToString (size), (void *) size);

}

BenchmarkChoice->Select (0);

BufferSizeChoice->Select (1);

UpdateBenchmarkList ();

VolumePimText->SetValidator (validator);

Layout();

Fit();

Center();

}

void BenchmarkDialog::UpdateBenchmarkList ()

{

int index = BenchmarkChoice->GetSelection ();

if (index == 1)

{

// PRF case

m_volumePimLabel->Show ();

VolumePimText->Show ();

BufferSizeChoice->Hide ();

m_bufferSizeLabel->Hide ();

}

else

{

m_volumePimLabel->Hide ();

VolumePimText->Hide ();

BufferSizeChoice->Show ();

m_bufferSizeLabel->Show ();

}

BenchmarkListCtrl->DeleteAllItems();

BenchmarkListCtrl->DeleteAllColumns();

fields[ColumnHashMean] = Gui->SpeedToString (result.MeanSpeed);

}

Gui->AppendToListCtrl (BenchmarkListCtrl, fields);

}

BenchmarkListCtrl->SetColumnWidth(0, wxLIST_AUTOSIZE);

wxSize minSize = BenchmarkListCtrl->GetBestSize ();

minSize.IncBy (10, 20);

BenchmarkListCtrl->SetMinSize(minSize);

Layout ();

Fit();

}

void BenchmarkDialog::DoBenchmark (list<BenchmarkResult>& results, Buffer& buffer, int opIndex)

{

try

{

if (opIndex == 0)

{

EncryptionAlgorithmList encryptionAlgorithms = EncryptionAlgorithm::GetAvailableAlgorithms();

foreach (shared_ptr <EncryptionAlgorithm> ea, encryptionAlgorithms)

{

if (!ea->IsDeprecated())

{

BenchmarkResult result;

result.AlgorithmName = ea->GetName(true);

Buffer key (ea->GetKeySize());

ea->SetKey (key);

shared_ptr <EncryptionMode> xts (new EncryptionModeXTS);

ea->SetMode (xts);

wxLongLong startTime = wxGetLocalTimeMillis();

// CPU "warm up" (an attempt to prevent skewed results on systems where CPU frequency gradually changes depending on CPU load).

do

{

ea->EncryptSectors (buffer, 0, buffer.Size() / ENCRYPTION_DATA_UNIT_SIZE, ENCRYPTION_DATA_UNIT_SIZE);

}

while (wxGetLocalTimeMillis().GetValue() - startTime.GetValue() < 20);

uint64 size = 0;

uint64 time;

startTime = wxGetLocalTimeMillis();

do

{

ea->EncryptSectors (buffer, 0, buffer.Size() / ENCRYPTION_DATA_UNIT_SIZE, ENCRYPTION_DATA_UNIT_SIZE);

size += buffer.Size();

time = (uint64) (wxGetLocalTimeMillis().GetValue() - startTime.GetValue());

}

while (time < 100);

result.EncryptionSpeed = size * 1000 / time;

startTime = wxGetLocalTimeMillis();

size = 0;

do

{

time = (uint64) (wxGetLocalTimeMillis().GetValue() - startTime.GetValue());

}

while (time < 100);

result.DecryptionSpeed = size * 1000 / time;

result.MeanSpeed = (result.EncryptionSpeed + result.DecryptionSpeed) / 2;

bool inserted = false;

for (list <BenchmarkResult>::iterator i = results.begin(); i != results.end(); ++i)

{

if (i->MeanSpeed < result.MeanSpeed)

{

results.insert (i, result);

inserted = true;

break;

}

}

if (!inserted)

results.push_back (result);

}

}

}

else if (opIndex == 1)

{

Buffer dk(MASTER_KEYDATA_SIZE);

Buffer salt(64);

const char *tmp_salt = {"\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xAA\xBB\xCC\xDD\xEE\xFF\x01\x23\x45\x67\x89\xAB\xCD\xEF\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xAA\xBB\xCC\xDD\xEE\xFF\x01\x23\x45\x67\x89\xAB\xCD\xEF\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xAA\xBB\xCC\xDD\xEE\xFF"};

unsigned long pim;

Pkcs5KdfList prfList = Pkcs5Kdf::GetAvailableAlgorithms ();

memcpy (&pim, buffer.Ptr (), sizeof (unsigned long));

memcpy (salt.Ptr(), tmp_salt, 64);

foreach (shared_ptr <Pkcs5Kdf> prf, prfList)

{

if (!prf->IsDeprecated())

{

BenchmarkResult result;

result.AlgorithmName = prf->GetName ();

result.Iterations = (uint64) prf->GetIterationCount (pim);

uint64 time;

wxLongLong startTime = wxGetLocalTimeMillis();

for (int i = 1; i <= 2; i++)

{

prf->DeriveKey (dk, password, pim, salt);

}

time = (uint64) (wxGetLocalTimeMillis().GetValue() - startTime.GetValue());

result.Time = time / 2;

bool inserted = false;

for (list <BenchmarkResult>::iterator i = results.begin(); i != results.end(); ++i)

{

if (i->Time > result.Time)

{

results.insert (i, result);