I am curious about Padding the seeds of Random Number Generator.
(I am sure that terminology, padding the seeds, is not correct. If someone knows the proper word, please let me know :) )
What is padding the seeds that I mentioned?
You know that Pseudo-Random Number generator need seed to do its job properly. For example, one of the most famous RNG, mt19937 need only one seed.
However, in KISS algorithm (George Marsaglia, 2011, 64bit version), you only just need 2 seeds,
xs. In the case of Wichmann_hill, you need 3 seeds,
s1, s2, s3. In WELL19937 algorithm, you need 624 seeds.
In my opinion, it is easy to get 1 or 2 seeds. But, getting 624 seeds for WELL19937 would be difficult.
So, I think some algorithms would implement "Padding the seeds", which means generating one seeds to on-demand seeds like SHA256. In the case of SHA, if input message does not fit the length, we generate some messages which is called Padding.
What I want to ask.
Is there any proper terminology of "Padding the seeds" in Random Number Generator?
How to "Padding the seeds"? Is there any standard?