The claimed entropy source for a FIPS 140 validated module now requires compliance to NIST SP800-90B. This means that any cryptographic module going through FIPS 140-2 or FIPS 140-3 validation needs to adhere to NIST implementation guidance 7.18 – Entropy …
Gathering Raw Unconditioned Entropy in a Live Linux System
As part of our continued product development efforts supporting assurance modernization, the Lightship team sometimes develop useful experimental tools or proofs of concepts. A while ago we developed a proof of concept to extract raw unconditioned entropy from a live …
Quantitative Analysis of Entropy
[Jan 12, 2018 update: With the final release of NIST SP 800-90B, we’ve updated this post to reflect the new published status of this NIST SP as well as to correct any differences between rev2 and the final publication.] …
Code for NIST Entropy Health Testing
[Jan 12, 2018 update: With the final release of NIST SP 800-90B, we’ve updated the sample health test code to match the minor changes between rev2 and the final version. The narrative of this post with respect to requirements for …