VRNG(4) | Device Drivers Manual (sparc64) | VRNG(4)

# NAME

`vrng` — virtual random number generator

# SYNOPSIS

`vrng0 at vbus?`

# DESCRIPTION

The `vrng` driver provides support for the random number generation service provided by the UltraSPARC Hypervisor as found on sun4v systems.

Driven by periodic checks for available data from the generator, `vrng` supplies entropy to the random(4) driver for common usage.

# SEE ALSO

intro(4), random(4), vbus(4)

# HISTORY

The `vrng` driver first appeared in OpenBSD 4.5.

# AUTHORS

The `vrng` driver was written by Mark Kettenis <kettenis@openbsd.org>.

# BUGS

The `vrng` driver should probably do periodic “health checks” when running in a Trusted Domain, but currently does not.

July 16, 2013 | Debian