SP 800-90B Health Tests | Dyber IP Cores

Overview

Continuous health monitoring for entropy sources per NIST SP 800-90B. Implements Repetition Count Test and Adaptive Proportion Test with sticky alarms and output gating. Production version adds a variance monitor for additional statistical assurance.

Key Features

SP 800-90B Repetition-Count Test
SP 800-90B Adaptive-Proportion Test
Sticky alarms with output gating
Production variance monitor

Benefits

Continuous entropy source monitoring in production
Output automatically gated on health failure
Meets SP 800-90B mandatory health test requirements

Standards and Verification

Standards Compliance

NIST SP 800-90B

Verification

Verified vs golden across random, stuck, biased, and boundary input streams.

Note: "Verified" means RTL byte-exact against official test vectors. It does not imply FIPS 140-3 certification or foundry sign-off.

Availability and Deliverables

Available Available (verified soft IP).

Standard Deliverables

Synthesizable SystemVerilog RTL
Self-checking testbench(es)
Python golden reference model
cocotb regression
Synthesis scripts
Integration/user guide

Firm/hard IP (hardened netlist for a target node) available on foundry enablement.

SP 800-90B Health Tests.