Summary or problem description
I think Neo should provide interops for lightweight pseudo-random number generators, such as Mersenne Twister. These are cheap on gas costs, and quite useful, as fueling them with entropy-based hash seeds (from blocks, transactions, or mixed) are secure strategies for smart contract random solutions.
A follow up from nice discussion in #1657.

Do you have any solution you want to propose?
Introduce interops for Mersenne Twister and other lightweight pseudorandom generators.
Some Interop may, for instance, initialize the desired generator (Neo.Random.InitializeMT), and others may take pseudorandom values from given interval (Neo.Random.NextIntRange).

Note that, it's very important to provide Range-Based integer generation, such as NextIntRange operation), as mostly adopted practices using mod operator (GetRandom() % INTERVAL) are very biased (it is well known, but I can also look for academic works on that matter). One good example is the C++11 random generator library, that has the concept of "distributions", like uniform_distribution, to operate over generators in a less-biased manner.

[EDIT]:
In time, we should also DEFINITELY provide Neo.Random.Shuffle for arrays (and maybe... Neo.Random.Sort, why not? To keep things "symmetric" 👍 ).

Neo Version

• Neo 2
• Neo 3

Where in the software does this update applies to?

• Interop