The link to msdn in your post is still working. > The dual elliptic curve random-number generator algorithm. Standard: SP800-90 > Windows 8: Beginning with W

The link to msdn in your post is still working. > The dual elliptic curve random-number generator algorithm. Standard: SP800-90 > Windows 8: Beginning with Windows 8, the EC RNG algorithm supports FIPS 186-3. Keys less than or equal to 1024 bits adhere to FIPS 186-2 and keys greater than 1024 to FIPS 186-3.