VeraCrypt
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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2024-11-16 01:05:15 +0100
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2024-11-16 01:05:15 +0100
commitc86577fc0ed481f622793e66627058928ade02a9 (patch)
treee167dfbde1cd2c0fc138ccd83d04052b9136e7ac /src/Common/Crypto.c
parent489d3e38732d2159d54485f05fe81bd3810019c8 (diff)
downloadVeraCrypt-c86577fc0ed481f622793e66627058928ade02a9.tar.gz
VeraCrypt-c86577fc0ed481f622793e66627058928ade02a9.zip
Windows: remove 32-bit logic from the code since we support only 64-bit. remove 32-bit EFI bootloader files.
We also fix intermediary files folder for Portable and Setup projects
Diffstat (limited to 'src/Common/Crypto.c')
-rw-r--r--src/Common/Crypto.c51
1 files changed, 1 insertions, 50 deletions
diff --git a/src/Common/Crypto.c b/src/Common/Crypto.c
index ed63a9a6..9ae841eb 100644
--- a/src/Common/Crypto.c
+++ b/src/Common/Crypto.c
@@ -193,8 +193,7 @@ void EncipherBlock(int cipher, void *data, void *ks)
switch (cipher)
{
case AES:
- // In 32-bit kernel mode, due to KeSaveFloatingPointState() overhead, AES instructions can be used only when processing the whole data unit.
-#if (defined (_WIN64) || !defined (TC_WINDOWS_DRIVER)) && !defined (TC_WINDOWS_BOOT)
+#if !defined (TC_WINDOWS_BOOT)
if (IsAesHwCpuSupported())
aes_hw_cpu_encrypt (ks, data);
else
@@ -221,16 +220,10 @@ void EncipherBlock(int cipher, void *data, void *ks)
void EncipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
{
uint8 *data = dataPtr;
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KFLOATING_SAVE floatingPointState;
-#endif
if (cipher == AES
&& (blockCount & (32 - 1)) == 0
&& IsAesHwCpuSupported()
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
-#endif
)
{
while (blockCount > 0)
@@ -241,24 +234,15 @@ void EncipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
blockCount -= 32;
}
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KeRestoreFloatingPointState (&floatingPointState);
-#endif
}
#ifndef WOLFCRYPT_BACKEND
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI)
else if (cipher == SERPENT
&& (blockCount >= 4)
&& HasSSE2()
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
-#endif
)
{
serpent_encrypt_blocks (data, data, blockCount, ks);
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KeRestoreFloatingPointState (&floatingPointState);
-#endif
}
#endif
#if CRYPTOPP_BOOL_X64 && !defined(CRYPTOPP_DISABLE_ASM)
@@ -272,15 +256,9 @@ void EncipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI)
else if (cipher == KUZNYECHIK
&& HasSSE2()
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- && (blockCount >= 4) && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
-#endif
)
{
kuznyechik_encrypt_blocks (data, data, blockCount, ks);
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KeRestoreFloatingPointState (&floatingPointState);
-#endif
}
#endif
#endif
@@ -316,11 +294,9 @@ void DecipherBlock(int cipher, void *data, void *ks)
#ifndef TC_WINDOWS_BOOT
case AES:
-#if defined (_WIN64) || !defined (TC_WINDOWS_DRIVER)
if (IsAesHwCpuSupported())
aes_hw_cpu_decrypt ((uint8 *) ks + sizeof (aes_encrypt_ctx), data);
else
-#endif
aes_decrypt (data, data, (void *) ((char *) ks + sizeof(aes_encrypt_ctx)));
break;
@@ -336,16 +312,10 @@ void DecipherBlock(int cipher, void *data, void *ks)
void DecipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
{
uint8 *data = dataPtr;
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KFLOATING_SAVE floatingPointState;
-#endif
if (cipher == AES
&& (blockCount & (32 - 1)) == 0
&& IsAesHwCpuSupported()
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
-#endif
)
{
while (blockCount > 0)
@@ -356,24 +326,15 @@ void DecipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
blockCount -= 32;
}
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KeRestoreFloatingPointState (&floatingPointState);
-#endif
}
#ifndef WOLFCRYPT_BACKEND
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI)
else if (cipher == SERPENT
&& (blockCount >= 4)
&& HasSSE2()
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
-#endif
)
{
serpent_decrypt_blocks (data, data, blockCount, ks);
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KeRestoreFloatingPointState (&floatingPointState);
-#endif
}
#endif
#if CRYPTOPP_BOOL_X64 && !defined(CRYPTOPP_DISABLE_ASM)
@@ -387,15 +348,9 @@ void DecipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI)
else if (cipher == KUZNYECHIK
&& HasSSE2()
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- && (blockCount >= 4) && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
-#endif
)
{
kuznyechik_decrypt_blocks (data, data, blockCount, ks);
-#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
- KeRestoreFloatingPointState (&floatingPointState);
-#endif
}
#endif
#endif
@@ -1260,14 +1215,10 @@ BOOL IsCpuRngEnabled ()
BOOL IsRamEncryptionSupported ()
{
-#ifdef _WIN64
if (t1ha_selfcheck__t1ha2() == 0)
return TRUE;
else
return FALSE;
-#else
- return FALSE;
-#endif
}
void EnableRamEncryption (BOOL enable)