Init can be called to make sure /dev/urandom is pre-opened on kernels that do not support getrandom(2).

Int63 is analogous to the standard library's math/rand.Int63.

Int63n is analogous to the standard library's math/rand.Int63n.

Read reads from the default reader.

RNGFrom returns a new RNG.

Uint32 is analogous to the standard library's math/rand.Uint32.

Uint64 is analogous to the standard library's math/rand.Uint64.

Reader is the default reader.

RNG exposes convenience functions based on a cryptographically secure io.Reader.