From 652e989d238fff2ade0de5a33a0e307e233c06e0 Mon Sep 17 00:00:00 2001 From: Mounir IDRASSI Date: Wed, 9 Jan 2019 00:25:06 +0100 Subject: Windows Security: Add new entry point in driver that allows emergency clearing of all encryption keys from memory. This entry point requires administrative privileges and it will caused BSDO when system encryption is active. It can be useful for example to applications that monitors physical access to the machine and which need to erase sensitive key material from RAM when unauthorized access is detected. --- src/Driver/EncryptedIoQueue.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/Driver/EncryptedIoQueue.c') diff --git a/src/Driver/EncryptedIoQueue.c b/src/Driver/EncryptedIoQueue.c index f7e453fd..6f1d3777 100644 --- a/src/Driver/EncryptedIoQueue.c +++ b/src/Driver/EncryptedIoQueue.c @@ -383,7 +383,9 @@ static VOID IoThreadProc (PVOID threadArg) // Perform IO request if no preceding request of the item failed if (NT_SUCCESS (request->Item->Status)) { - if (queue->IsFilterDevice) + if (queue->ThreadBlockReadWrite) + request->Item->Status = STATUS_DEVICE_BUSY; + else if (queue->IsFilterDevice) { if (queue->RemapEncryptedArea && request->EncryptedLength > 0) { -- cgit v1.2.3