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Initial support of SM4 cipher for normal volumes

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This commit is contained in:
Mounir IDRASSI
2025-05-04 02:27:05 +09:00
parent 798985bf25
commit 7924f06e39
97 changed files with 2596 additions and 368 deletions
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69
src/Volume/Cipher.cpp
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@@ -17,6 +17,7 @@
#include "Crypto/Twofish.h"
#include "Crypto/Camellia.h"
#include "Crypto/kuznyechik.h"
#include "Crypto/sm4.h"
#ifdef TC_AES_HW_CPU
# include "Crypto/Aes_hw_cpu.h"
@@ -99,6 +100,7 @@ namespace VeraCrypt
l.push_back (shared_ptr <Cipher> (new CipherTwofish ()));
l.push_back (shared_ptr <Cipher> (new CipherCamellia ()));
l.push_back (shared_ptr <Cipher> (new CipherKuznyechik ()));
l.push_back (shared_ptr <Cipher> (new CipherSM4 ()));
#endif
return l;
}
@@ -518,6 +520,73 @@ namespace VeraCrypt
return false;
#endif
}
// SM4
void CipherSM4::Decrypt (uint8 *data) const
{
sm4_decrypt_block (data, data, (sm4_kds *) ScheduledKey.Ptr());
}
void CipherSM4::Encrypt (uint8 *data) const
{
sm4_encrypt_block (data, data, (sm4_kds *) ScheduledKey.Ptr());
}
size_t CipherSM4::GetScheduledKeySize () const
{
return SM4_KS;
}
void CipherSM4::SetCipherKey (const uint8 *key)
{
sm4_set_key (key, (sm4_kds *) ScheduledKey.Ptr());
}
void CipherSM4::EncryptBlocks (uint8 *data, size_t blockCount) const
{
if (!Initialized)
throw NotInitialized (SRC_POS);
if ((blockCount >= 4)
&& IsHwSupportAvailable())
{
sm4_encrypt_blocks (data, data, blockCount, (sm4_kds *) ScheduledKey.Ptr());
}
else
Cipher::EncryptBlocks (data, blockCount);
}
void CipherSM4::DecryptBlocks (uint8 *data, size_t blockCount) const
{
if (!Initialized)
throw NotInitialized (SRC_POS);
if ((blockCount >= 4)
&& IsHwSupportAvailable())
{
sm4_decrypt_blocks (data, data, blockCount, (sm4_kds *) ScheduledKey.Ptr());
}
else
Cipher::DecryptBlocks (data, blockCount);
}
bool CipherSM4::IsHwSupportAvailable () const
{
#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
static bool state = false;
static bool stateValid = false;
if (!stateValid)
{
state = HasSSE41() && HasAESNI();
stateValid = true;
}
return state;
#else
return false;
#endif
}
#endif
bool Cipher::HwSupportEnabled = true;
}