VeraCrypt
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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2016-10-05 11:13:26 (GMT)
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2016-10-17 16:40:24 (GMT)
commit041bc9dc0bfc9a16b19cfed9b59725d14bfef604 (patch)
tree9f303308ff1c9a916158caa365e9336e0f6dbf7b /src/Driver/DriveFilter.c
parente5a9e9239b0cf1001d9b91497b4ff3ab4a190b1f (diff)
downloadVeraCrypt-041bc9dc0bfc9a16b19cfed9b59725d14bfef604.zip
VeraCrypt-041bc9dc0bfc9a16b19cfed9b59725d14bfef604.tar.gz
Windows: Fix false-positive detection of Evil-Maid attack during creation process of hidden OS by excluding the configuration byte in the boot sector whose value changes depending on the content.
Diffstat (limited to 'src/Driver/DriveFilter.c')
-rw-r--r--src/Driver/DriveFilter.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/src/Driver/DriveFilter.c b/src/Driver/DriveFilter.c
index 9c53147..66f4981 100644
--- a/src/Driver/DriveFilter.c
+++ b/src/Driver/DriveFilter.c
@@ -268,11 +268,9 @@ static void ComputeBootLoaderFingerprint(PDEVICE_OBJECT LowerDeviceObject, byte*
#endif
WHIRLPOOL_add (ioBuffer, TC_BOOT_SECTOR_PIM_VALUE_OFFSET, &whirlpool);
WHIRLPOOL_add (ioBuffer + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, (TC_BOOT_SECTOR_USER_CONFIG_OFFSET - (TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)), &whirlpool);
- WHIRLPOOL_add (ioBuffer + TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1, (TC_MAX_MBR_BOOT_CODE_SIZE - (TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1)), &whirlpool);
sha512_hash (ioBuffer, TC_BOOT_SECTOR_PIM_VALUE_OFFSET, &sha2);
sha512_hash (ioBuffer + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, (TC_BOOT_SECTOR_USER_CONFIG_OFFSET - (TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)), &sha2);
- sha512_hash (ioBuffer + TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1, (TC_MAX_MBR_BOOT_CODE_SIZE - (TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1)), &sha2);
// we has the reste of the bootloader, 512 bytes at a time
offset.QuadPart = TC_SECTOR_SIZE_BIOS;