/*
 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 "Common/Pkcs5.h"
#include "Pkcs5Kdf.h"
#include "VolumePassword.h"

namespace VeraCrypt
{
	Pkcs5Kdf::Pkcs5Kdf (bool truecryptMode) : m_truecryptMode(truecryptMode)
	{
	}

	Pkcs5Kdf::~Pkcs5Kdf ()
	{
	}

	void Pkcs5Kdf::DeriveKey (const BufferPtr &key, const VolumePassword &password, int pim, const ConstBufferPtr &salt) const
	{
		DeriveKey (key, password, salt, GetIterationCount(pim));
	}

	shared_ptr <Pkcs5Kdf> Pkcs5Kdf::GetAlgorithm (const wstring &name, bool truecryptMode)
	{
		foreach (shared_ptr <Pkcs5Kdf> kdf, GetAvailableAlgorithms(truecryptMode))
		{
			if (kdf->GetName() == name)
				return kdf;
		}
		throw ParameterIncorrect (SRC_POS);
	}

	shared_ptr <Pkcs5Kdf> Pkcs5Kdf::GetAlgorithm (const Hash &hash, bool truecryptMode)
	{
		foreach (shared_ptr <Pkcs5Kdf> kdf, GetAvailableAlgorithms(truecryptMode))
		{
			if (typeid (*kdf->GetHash()) == typeid (hash))
				return kdf;
		}

		throw ParameterIncorrect (SRC_POS);
	}

	Pkcs5KdfList Pkcs5Kdf::GetAvailableAlgorithms (bool truecryptMode)
	{
		Pkcs5KdfList l;

		if (truecryptMode)
		{
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacRipemd160 (true)));
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacSha512 (true)));
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacWhirlpool (true)));
		}
		else
		{
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacSha512 (false)));
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacWhirlpool (false)));
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacSha256 ()));
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacRipemd160 (false)));
			l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacStreebog ()));
		}

		return l;
	}

	void Pkcs5Kdf::ValidateParameters (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		if (key.Size() < 1 || password.Size() < 1 || salt.Size() < 1 || iterationCount < 1)
			throw ParameterIncorrect (SRC_POS);
	}

	void Pkcs5HmacRipemd160::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_ripemd160 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}

	void Pkcs5HmacRipemd160_1000::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_ripemd160 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}

	void Pkcs5HmacSha256_Boot::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_sha256 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}

	void Pkcs5HmacSha256::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_sha256 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}

	void Pkcs5HmacSha512::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_sha512 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}

	void Pkcs5HmacWhirlpool::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_whirlpool ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}
	
	void Pkcs5HmacStreebog::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_streebog ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}
	
	void Pkcs5HmacStreebog_Boot::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
	{
		ValidateParameters (key, password, salt, iterationCount);
		derive_key_streebog ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
	}
}
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="c1">#</span>
<span class="c1"># Copyright (c) 2013-2017 IDRIX</span>
<span class="c1"># Governed by the Apache License 2.0 the full text of which is contained</span>
<span class="c1"># in the file License.txt included in VeraCrypt binary and source</span>
<span class="c1"># code distribution packages.</span>
<span class="c1">#</span>

<span class="c1"># Absolute path to this script</span>
<span class="nv">SCRIPT</span><span class="o">=</span><span class="k">$(</span>readlink -f <span class="s2">&quot;</span><span class="nv">$0</span><span class="s2">&quot;</span><span class="k">)</span>
<span class="c1"># Absolute path this script is in</span>
<span class="nv">SCRIPTPATH</span><span class="o">=</span><span class="k">$(</span>dirname <span class="s2">&quot;</span><span class="nv">$SCRIPT</span><span class="s2">&quot;</span><span class="k">)</span>
<span class="c1"># source directory which contains the Makefile</span>
<span class="nv">SOURCEPATH</span><span class="o">=</span><span class="k">$(</span>readlink -f <span class="s2">&quot;</span><span class="nv">$SCRIPTPATH</span><span class="s2">/..&quot;</span><span class="k">)</span>
<span class="c1"># directory where the VeraCrypt has been checked out</span>
<span class="nv">PARENTDIR</span><span class="o">=</span><span class="k">$(</span>readlink -f <span class="s2">&quot;</span><span class="nv">$SCRIPTPATH</span><span class="s2">/../../..&quot;</span><span class="k">)</span>

<span class="c1"># Make sure only root can run our script</span>
<span class="k">if</span> <span class="o">[</span> <span class="s2">&quot;</span><span class="k">$(</span>id -u<span class="k">)</span><span class="s2">&quot;</span> !<span class="o">=</span> <span class="s2">&quot;0&quot;</span> <span class="o">]</span><span class="p">;</span> <span class="k">then</span>
   <span class="nb">echo</span> <span class="s2">&quot;VeraCrypt must be built by root&quot;</span> <span class="m">1</span>&gt;<span class="p">&amp;</span><span class="m">2</span>
   <span class="nb">exit</span> <span class="m">1</span>
<span class="k">fi</span>

<span class="c1"># the sources of wxWidgets 3.0.3 must be extracted to the parent directory</span>
<span class="nb">export</span> <span class="nv">WX_ROOT</span><span class="o">=</span><span class="nv">$PARENTDIR</span>/wxWidgets-3.0.4
<span class="nb">echo</span> <span class="s2">&quot;Using wxWidgets sources in </span><span class="nv">$WX_ROOT</span><span class="s2">&quot;</span>

<span class="nb">cd</span> <span class="nv">$SOURCEPATH</span>

<span class="nb">echo</span> <span class="s2">&quot;Building GUI version of VeraCrypt&quot;</span>

<span class="c1"># this will be the temporary wxWidgets directory</span>
<span class="nb">export</span> <span class="nv">WX_BUILD_DIR</span><span class="o">=</span><span class="nv">$PARENTDIR</span>/wxBuildGui

make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> wxbuild <span class="o">&amp;&amp;</span> make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> clean <span class="o">&amp;&amp;</span> make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> <span class="o">&amp;&amp;</span> make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> package

<span class="c1"># Uncomment below and comment line above to reuse existing wxWidgets build</span>
<span class="c1"># make WXSTATIC=1 clean &amp;&amp; make WXSTATIC=1 &amp;&amp; make WXSTATIC=1 package</span>

<span class="nb">echo</span> <span class="s2">&quot;Building console version of VeraCrypt&quot;</span>

<span class="c1"># this will be the temporary wxWidgets directory</span>
<span class="nb">export</span> <span class="nv">WX_BUILD_DIR</span><span class="o">=</span><span class="nv">$PARENTDIR</span>/wxBuildConsole

make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> <span class="nv">NOGUI</span><span class="o">=</span><span class="m">1</span> wxbuild <span class="o">&amp;&amp;</span> make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> <span class="nv">NOGUI</span><span class="o">=</span><span class="m">1</span> clean <span class="o">&amp;&amp;</span> make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> <span class="nv">NOGUI</span><span class="o">=</span><span class="m">1</span> <span class="o">&amp;&amp;</span> make <span class="nv">WXSTATIC</span><span class="o">=</span><span class="m">1</span> <span class="nv">NOGUI</span><span class="o">=</span><span class="m">1</span> package

<span class="c1"># Uncomment below and comment line above to reuse existing wxWidgets build</span>
<span class="c1"># make WXSTATIC=1 NOGUI=1 clean &amp;&amp; make WXSTATIC=1 NOGUI=1 &amp;&amp; make WXSTATIC=1 NOGUI=1 package</span>
</pre></div>