> Instead, using AES-128 CTR_DRBG Just for comparison this is what Windows does[1] for it's PRNG stuff (in Vista SP1 and newer at least). It uses AES256 in C

> Instead, using AES-128 CTR_DRBG Just for comparison this is what Windows does[1] for it's PRNG stuff (in Vista SP1 and newer at least). It uses AES256 in CTR mode as a DRNG[2]. [1] https://msdn.microsoft.com/en-us/library/windows/desktop/aa379942(v=vs.85).aspx https://msdn.microsoft.com/en-us/library/windows/desktop/aa3... [2] NIST 800-90