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1 files changed, 126 insertions, 0 deletions

diff --git a/Volume/VolumeHeader.h b/Volume/VolumeHeader.h
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+++ b/Volume/VolumeHeader.h
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+/*
+ Copyright (c) 2008-2010 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifndef TC_HEADER_Volume_VolumeHeader
+#define TC_HEADER_Volume_VolumeHeader
+
+#include "Common/Tcdefs.h"
+#include "Common/Volumes.h"
+#include "Platform/Platform.h"
+#include "Volume/EncryptionAlgorithm.h"
+#include "Volume/EncryptionMode.h"
+#include "Volume/Keyfile.h"
+#include "Volume/VolumePassword.h"
+#include "Volume/Pkcs5Kdf.h"
+#include "Version.h"
+
+
+// For specifications of the volume header see Common/Volumes.c
+
+namespace TrueCrypt
+{
+	typedef uint64 VolumeTime;
+
+	struct VolumeType
+	{
+		enum Enum
+		{
+			Unknown,
+			Normal,
+			Hidden
+		};
+	};
+
+	struct VolumeHeaderCreationOptions
+	{
+		ConstBufferPtr DataKey;
+		shared_ptr <EncryptionAlgorithm> EA;
+		shared_ptr <Pkcs5Kdf> Kdf;
+		ConstBufferPtr HeaderKey;
+		ConstBufferPtr Salt;
+		uint32 SectorSize;
+		uint64 VolumeDataSize;
+		uint64 VolumeDataStart;
+		VolumeType::Enum Type;
+	};
+
+	class VolumeHeader
+	{
+	public:
+		VolumeHeader (uint32 HeaderSize);
+		virtual ~VolumeHeader ();
+
+		void Create (const BufferPtr &headerBuffer, VolumeHeaderCreationOptions &options);
+		bool Decrypt (const ConstBufferPtr &encryptedData, const VolumePassword &password, const Pkcs5KdfList &keyDerivationFunctions, const EncryptionAlgorithmList &encryptionAlgorithms, const EncryptionModeList &encryptionModes);
+		void EncryptNew (const BufferPtr &newHeaderBuffer, const ConstBufferPtr &newSalt, const ConstBufferPtr &newHeaderKey, shared_ptr <Pkcs5Kdf> newPkcs5Kdf);
+		uint64 GetEncryptedAreaStart () const { return EncryptedAreaStart; }
+		uint64 GetEncryptedAreaLength () const { return EncryptedAreaLength; }
+		shared_ptr <EncryptionAlgorithm> GetEncryptionAlgorithm () const { return EA; }
+		uint32 GetFlags () const { return Flags; }
+		VolumeTime GetHeaderCreationTime () const { return HeaderCreationTime; }
+		uint64 GetHiddenVolumeDataSize () const { return HiddenVolumeDataSize; }
+		static size_t GetLargestSerializedKeySize ();
+		shared_ptr <Pkcs5Kdf> GetPkcs5Kdf () const { return Pkcs5; }
+		uint16 GetRequiredMinProgramVersion () const { return RequiredMinProgramVersion; }
+		size_t GetSectorSize () const { return SectorSize; }
+		static uint32 GetSaltSize () { return SaltSize; }
+		uint64 GetVolumeDataSize () const { return VolumeDataSize; }
+		VolumeTime GetVolumeCreationTime () const { return VolumeCreationTime; }
+		void SetSize (uint32 headerSize);
+
+	protected:
+		bool Deserialize (const ConstBufferPtr &header, shared_ptr <EncryptionAlgorithm> &ea, shared_ptr <EncryptionMode> &mode);
+		template <typename T> T DeserializeEntry (const ConstBufferPtr &header, size_t &offset) const;
+		template <typename T> T DeserializeEntryAt (const ConstBufferPtr &header, const size_t &offset) const;
+		void Init ();
+		void Serialize (const BufferPtr &header) const;
+		template <typename T> void SerializeEntry (const T &entry, const BufferPtr &header, size_t &offset) const;
+
+		uint32 HeaderSize;
+
+		static const uint16 CurrentHeaderVersion = VOLUME_HEADER_VERSION;
+		static const uint16 CurrentRequiredMinProgramVersion = TC_VOLUME_MIN_REQUIRED_PROGRAM_VERSION;
+		static const uint16 MinAllowedHeaderVersion = 1;
+
+		static const int SaltOffset = 0;
+		static const uint32 SaltSize = 64;
+
+		static const int EncryptedHeaderDataOffset = SaltOffset + SaltSize;
+		uint32 EncryptedHeaderDataSize;
+
+		static const uint32 LegacyEncryptionModeKeyAreaSize = 32;
+		static const int DataKeyAreaMaxSize = 256;
+		static const uint32 DataAreaKeyOffset = DataKeyAreaMaxSize - EncryptedHeaderDataOffset;
+
+		shared_ptr <EncryptionAlgorithm> EA;
+		shared_ptr <Pkcs5Kdf> Pkcs5;
+
+		uint16 HeaderVersion;
+		uint16 RequiredMinProgramVersion;
+		uint32 VolumeKeyAreaCrc32;
+
+		VolumeTime VolumeCreationTime;
+		VolumeTime HeaderCreationTime;
+
+		VolumeType::Enum mVolumeType;
+		uint64 HiddenVolumeDataSize;
+		uint64 VolumeDataSize;
+		uint64 EncryptedAreaStart;
+		uint64 EncryptedAreaLength;
+		uint32 Flags;
+		uint32 SectorSize;
+
+		SecureBuffer DataAreaKey;
+
+	private:
+		VolumeHeader (const VolumeHeader &);
+		VolumeHeader &operator= (const VolumeHeader &);
+	};
+}
+
+#endif // TC_HEADER_Volume_VolumeHeader