8051408: NIST SP 800-90A SecureRandom implementations
Reviewed-by: wetmore, xuelei, coffeys

8012530: test/sun/security/provider/SecureRandom/StrongSeedReader.java failing
Reviewed-by: wetmore
Contributed-by: alan.bateman@oracle.com

6425477: Better support for generation of high entropy random numbers
Reviewed-by: xuelei, weijun, mullan