On Thursday, March 14, 2019 at 3:13:51 PM UTC-7, Jaime Hablutzel wrote:
> > 64bits_entropy = GetRandom64Bits() //This returns 64 random bits from a
> > CSPRNG with at least one bit in the highest byte set to 1
> > 
> > is, strictly speaking, not true. The best possible implementation for
> > GetRandom64Bits(), as described, only returns 63.994353 bits of entropy,
> > not 64.
> > 
> 
> Can you share how did you get the previous 63.994353?.
> 
> I'm trying the following and I'm getting a different value:
> 
> a = 2^64 = 18446744073709551616
> b = 0x80000000000000 = 36028797018963968
> 
> (a - b) / a * 64 = 63.875
> 
> Maybe I'm misunderstanding something.

That post was for after 3/7. We were fine all along.
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