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Windows: Add option to enable use of CPU RDRAND/RDSEED as source of entropy which is now disabled by default

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This commit is contained in:
Mounir IDRASSI
2019-02-07 15:24:56 +01:00
parent 6bb1f24ed5
commit e5b9cee868
48 changed files with 108 additions and 15 deletions
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12
src/Common/Random.c
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@@ -777,9 +777,10 @@ BOOL SlowPoll (void)
}
// use RDSEED or RDRAND from CPU as source of entropy if present
if ( (HasRDSEED() && RDSEED_getBytes (buffer, sizeof (buffer)))
if ( IsCpuRngEnabled() &&
( (HasRDSEED() && RDSEED_getBytes (buffer, sizeof (buffer)))
|| (HasRDRAND() && RDRAND_getBytes (buffer, sizeof (buffer)))
)
))
{
RandaddBuf (buffer, sizeof (buffer));
}
@@ -907,10 +908,11 @@ BOOL FastPoll (void)
return FALSE;
}
// use RDSEED or RDRAND from CPU as source of entropy if present
if ( (HasRDSEED() && RDSEED_getBytes (buffer, sizeof (buffer)))
// use RDSEED or RDRAND from CPU as source of entropy if enabled
if ( IsCpuRngEnabled() &&
( (HasRDSEED() && RDSEED_getBytes (buffer, sizeof (buffer)))
|| (HasRDRAND() && RDRAND_getBytes (buffer, sizeof (buffer)))
)
))
{
RandaddBuf (buffer, sizeof (buffer));
}