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STFRNG(4) Device Drivers Manual (riscv64) STFRNG(4)

stfrngStarFive JH7110 random number generator

stfrng* at fdt?

The stfrng driver provides support for the random number generator found on the StarFive JH7110 SoC.

It feeds the random subsystem's entropy pool with 256 bits of random data every second.

intro(4), random(4), arc4random(9)

The stfrng driver first appeared in OpenBSD 7.4.

The stfrng driver was written by Mark Kettenis <>.

September 23, 2023 OpenBSD-current