---
name: "rkrng"
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/rkrng"
---

# rkrng(4)

Rockchip random number generator

## NAME

**rkrng** – Rockchip random number generator

## SYNOPSIS

**rkrng\* at fdt?**

## DESCRIPTION

The **rkrng** driver provides support for the random number generator found on the Rockchip SoCs.

It feeds the random subsystem's entropy pool with 256 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 **rkrng** driver first appeared in OpenBSD 6.7.

## AUTHORS

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