[erlang-questions] Requirements for seed integers in the rand module

[Krzysztof Jurewicz]

The seed/2 and seed_s/2 functions in the rand module take a 3-element tuple of integers as a seed, however it doesn’t document what are the requirements for those integers (how they need to be distributed). If seed is omitted (the seed/1 and seed_s/1 functions), then the following (undocumented) value is used:

{erlang:phash2([{node(),self()}]),
 erlang:system_time(),
 erlang:unique_integer()}

I have 64 bytes of entropy which I want to use as a seed. Is it ok to do it in the way below?

{binary:decode_unsigned(Entropy), 0, 0}