octrng(4)

octrng4

Octeon random number generator

Usage

octrng* at iobus?

Overview

The octrng driver supports the random number generator found on the CN50XX chip.

After the 5 seconds it takes for the device to be initialized, the octrng driver feeds the random subsystem's entropy pool 32 bits of data every 10 milliseconds through the enqueue_randomness(9) API.

History

The octrng driver first appeared in OpenBSD 5.5.

Authors

The octrng driver was written by Paul Irofti ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.