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wolfCrypt as crypto backend for VeraCrypt (#1227)

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* wolfCrypt as crypto backend for VeraCrypt

* Refactor to use EncryptionModeWolfCryptXTS class
This commit is contained in:
lealem47 authored and GitHub committed 2023-11-13 00:51:31 +01:00
1 parent 458be85f84
commit 9247ce1bb9
36 files changed
+1104 -220
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src/Volume/Cipher.h
+46 -2
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@@ -28,8 +28,15 @@ namespace VeraCrypt
virtual void DecryptBlock (byte *data) const;
virtual void DecryptBlocks (byte *data, size_t blockCount) const;
static void EnableHwSupport (bool enable) { HwSupportEnabled = enable; }
virtual void EncryptBlock (byte *data) const;
#ifndef WOLFCRYPT_BACKEND
static void EnableHwSupport (bool enable) { HwSupportEnabled = enable; }
#else
static void EnableHwSupport (bool enable) { HwSupportEnabled = false; }
virtual void EncryptBlockXTS (byte *data, uint64 length, uint64 startDataUnitNo) const;
virtual void DecryptBlockXTS (byte *data, uint64 length, uint64 startDataUnitNo) const;
virtual void SetKeyXTS (const ConstBufferPtr &key);
#endif
virtual void EncryptBlock (byte *data) const;
virtual void EncryptBlocks (byte *data, size_t blockCount) const;
static CipherList GetAvailableCiphers ();
virtual size_t GetBlockSize () const = 0;
@@ -50,6 +57,11 @@ namespace VeraCrypt
virtual void Encrypt (byte *data) const = 0;
virtual size_t GetScheduledKeySize () const = 0;
virtual void SetCipherKey (const byte *key) = 0;
#ifdef WOLFCRYPT_BACKEND
virtual void DecryptXTS (byte *data, uint64 length, uint64 startDataUnitNo) const = 0;
virtual void EncryptXTS (byte *data, uint64 length, uint64 startDataUnitNo) const = 0;
virtual void SetCipherKeyXTS (const byte *key) = 0;
#endif
static bool HwSupportEnabled;
bool Initialized;
@@ -69,6 +81,36 @@ namespace VeraCrypt
CipherException (const string &message, const wstring &subject) : Exception (message, subject) { }
};
#ifdef WOLFCRYPT_BACKEND
#define TC_CIPHER(NAME, BLOCK_SIZE, KEY_SIZE) \
class TC_JOIN (Cipher,NAME) : public Cipher \
{ \
public: \
TC_JOIN (Cipher,NAME) () { } \
virtual ~TC_JOIN (Cipher,NAME) () { } \
\
virtual size_t GetBlockSize () const { return BLOCK_SIZE; }; \
virtual size_t GetKeySize () const { return KEY_SIZE; }; \
virtual wstring GetName () const { return L###NAME; }; \
virtual shared_ptr <Cipher> GetNew () const { return shared_ptr <Cipher> (new TC_JOIN (Cipher,NAME)()); } \
TC_CIPHER_ADD_METHODS \
\
protected: \
virtual void Decrypt (byte *data) const; \
virtual void Encrypt (byte *data) const; \
virtual size_t GetScheduledKeySize () const; \
virtual void SetCipherKey (const byte *key); \
virtual void DecryptXTS (byte *data, uint64 length, uint64 startDataUnitNo) const; \
virtual void SetCipherKeyXTS (const byte *key); \
virtual void EncryptXTS (byte *data, uint64 length, uint64 startDataUnitNo) const; \
\
private: \
TC_JOIN (Cipher,NAME) (const TC_JOIN (Cipher,NAME) &); \
TC_JOIN (Cipher,NAME) &operator= (const TC_JOIN (Cipher,NAME) &); \
}
#else
#define TC_CIPHER(NAME, BLOCK_SIZE, KEY_SIZE) \
class TC_JOIN (Cipher,NAME) : public Cipher \
@@ -94,6 +136,8 @@ namespace VeraCrypt
TC_JOIN (Cipher,NAME) &operator= (const TC_JOIN (Cipher,NAME) &); \
}
#endif
#define TC_CIPHER_ADD_METHODS \
virtual void DecryptBlocks (byte *data, size_t blockCount) const; \
virtual void EncryptBlocks (byte *data, size_t blockCount) const; \