randomseedx

Randomseedx is an open-source library that provides tools for generating, managing, and distributing seeds used to initialize pseudo-random number generators across programming environments. It is designed to be portable and language-agnostic, offering a consistent interface for seed creation regardless of the underlying RNG implementation.

The library collects entropy from multiple sources, such as system clock data, process identifiers, environment information, and, where available, hardware random number generators or operating-system cryptographic sources. It then applies a mixing process to produce a fixed-size seed with high statistical quality suitable for initializing various RNGs.

Its API typically includes functions to generate new seeds, reseed a given RNG instance, serialize seeds to common formats (binary, hexadecimal, base64), and validate seed quality. Randomseedx emphasizes extensibility, with language bindings and pluggable entropy sources, allowing developers to tailor the seed pipeline to their platform and performance needs.

It is intended for non-cryptographic uses where reproducibility and unpredictability are both important, such as simulations, testing, and game development. When cryptographic security is required, the library recommends sourcing seeds from a cryptographically secure RNG and using dedicated cryptographic primitives for any security-critical tasks.

Originating in the open-source ecosystem in the 2010s, randomseedx has grown through community contributions and is distributed under an open-source license. The project is maintained by volunteers and fosters cross-language compatibility to support diverse software stacks.