The Old New Thing

Sure I can protect data with CryptProtectData, but how do I remove the ability to decrypt it?

July 18, 2018 Jul 18, 2018 07/18/18

Raymond Chen

You can put a secret in the nonce, though it's not really a secret by that point.

When generating a random password, the result must still be a valid string

July 13, 2018 Jul 13, 2018 07/13/18

Raymond Chen

Invalid strings can't round trip through multiple encodings.

Why does a non-recursive Read­Directory­ChangesW still report files created inside subdirectories?

July 12, 2018 Jul 12, 2018 07/12/18

Raymond Chen

Because they do affect the top-level directory.

Const methods don’t prevent a method from having side effects

July 11, 2018 Jul 11, 2018 07/11/18

Raymond Chen

Though they shouldn't if you know what's good for you, but the compiler doesn't know whether you know what's good for you.

The case of the very large memory blocks of the same size, mostly zero, but whose nonzero bytes follow a pattern

July 6, 2018 Jul 6, 2018 07/6/18

Raymond Chen

Some initial pattern recognition, followed by an ad-hoc tool.