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Windows: Generalize RAM encryption for keys to VeraCrypt binaries, especially Format and Expander

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This commit is contained in:
Mounir IDRASSI
2019-03-02 10:14:21 +01:00
parent edd1b00126
commit 321715202a
12 changed files with 187 additions and 6 deletions
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10
src/Common/Crypto.c
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@@ -1295,7 +1295,7 @@ byte GetRandomIndex (ChaCha20RngCtx* pCtx, byte elementsCount)
return index;
}
#if defined(_WIN64) && !defined (_UEFI) && defined(TC_WINDOWS_DRIVER)
#if defined(_WIN64) && !defined (_UEFI)
/* declaration of variables and functions used for RAM encryption on 64-bit build */
static byte* pbKeyDerivationArea = NULL;
static ULONG cbKeyDerivationArea = 0;
@@ -1306,15 +1306,19 @@ static uint64 CipherIVMask = 0;
ULONG AllocTag = 'MMCV';
#endif
#if !defined(PAGE_SIZE)
#define PAGE_SIZE 4096
#endif
BOOL InitializeSecurityParameters(GetRandSeedFn rngCallback)
{
ChaCha20RngCtx ctx;
byte pbSeed[CHACHA20RNG_KEYSZ + CHACHA20RNG_IVSZ];
#ifdef TC_WINDOWS_DRIVER
byte i, tagLength;
#endif
Dump ("InitializeSecurityParameters BEGIN\n");
#endif
rngCallback (pbSeed, sizeof (pbSeed));
@@ -1362,9 +1366,11 @@ BOOL InitializeSecurityParameters(GetRandSeedFn rngCallback)
FAST_ERASE64 (pbSeed, sizeof (pbSeed));
burn (&ctx, sizeof (ctx));
#ifdef TC_WINDOWS_DRIVER
burn (&tagLength, 1);
Dump ("InitializeSecurityParameters return=TRUE END\n");
#endif
return TRUE;
}