otbn-rig

Tool

First seen 5/31/2026

Last seen 6/1/2026

Evidence 2 chunks

NEIGHBORHOOD

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otbn-rig is described as a random instruction generator for OTBN

gen-binaries.py ← uses 95% 2e

gen-binaries.py is a wrapper around otbn-rig for generating random binaries

otbn-rig implements random program generation via its gen command.

otbn-rig implements assembly generation from JSON via its asm command.

test case mutation mentions → 1e

otbn-rig mentions potential future support for test case mutation.

otbn-rig mentions potential future support for test case shrinking.

otbn-rig uses a --seed parameter to control random generation and ensure stable output for a fixed seed

otbn-rig uses a --size parameter to control how large the generated program grows

snippet uses → 100% 1e

The random program generated by otbn-rig is built from blocks called snippets

otbn-rig's gen command writes the generated program to stdout in a JSON format

otbn-rig is designed to never trigger architecturally unspecified behaviour

otbn-rig includes randomly initialised data scattered around dmem to support load instruction generation

otbn-rig generates load instructions using pre-seeded dmem data

assembly listing uses → 100% 1e

The asm command of otbn-rig converts JSON programs to assembly listings

linker script uses → 100% 1e

otbn-rig's asm command generates both an assembly file and a linker script

OTBN toolchain depends on → 90% 1e

The assembly and linker script output of otbn-rig is assembled and linked using the OTBN toolchain