From e5b9cee8681dc45340321f759079b344a3b2676c Mon Sep 17 00:00:00 2001 From: Mounir IDRASSI Date: Thu, 7 Feb 2019 15:24:56 +0100 Subject: Windows: Add option to enable use of CPU RDRAND/RDSEED as source of entropy which is now disabled by default --- src/Driver/DriveFilter.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'src/Driver/DriveFilter.c') diff --git a/src/Driver/DriveFilter.c b/src/Driver/DriveFilter.c index a02ca3e5..6228009f 100644 --- a/src/Driver/DriveFilter.c +++ b/src/Driver/DriveFilter.c @@ -1535,10 +1535,11 @@ static VOID SetupThreadProc (PVOID threadArg) KeQuerySystemTime( &iSeed ); WHIRLPOOL_init (&tctx); WHIRLPOOL_add ((unsigned char *) &(iSeed.QuadPart), sizeof(iSeed.QuadPart), &tctx); - // use RDSEED or RDRAND from CPU as source of entropy if present - if ( (HasRDSEED() && RDSEED_getBytes (digest, sizeof (digest))) + // use RDSEED or RDRAND from CPU as source of entropy if enabled + if ( IsCpuRngEnabled() && + ( (HasRDSEED() && RDSEED_getBytes (digest, sizeof (digest))) || (HasRDRAND() && RDRAND_getBytes (digest, sizeof (digest))) - ) + )) { WHIRLPOOL_add (digest, sizeof(digest), &tctx); } -- cgit v1.2.3