---
name: "bcmirng"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/bcmirng"
---

# bcmirng(4)

Broadcom RNG200 random number generator

## NAME

**bcmirng** – Broadcom RNG200 random number generator

## SYNOPSIS

**bcmirng\* at fdt?**

## DESCRIPTION

The **bcmirng** driver provides support for the RNG200 random number generator found on the Broadcom BCM2711 SoC.

It feeds the random subsystem's entropy pool with up to 128 bits of random data every second.

## SEE ALSO

[intro(4)](/intro/4.md), [random(4)](/random/4.md), [arc4random(9)](/arc4random/9.md)

## HISTORY

The **bcmirng** driver first appeared in OpenBSD 6.7.

## AUTHORS

The **bcmirng** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩.