ACVP KAT JSON File Format for ML-KEM encapDecap mode

[Anjan Roy]

Dear NIST and broader PQC community,

I'm adding support for ML-KEM ACVP KATs in my C++ zero-dependency header-only implementation @ https://github.com/itzmeanjan/ml-kem.

I'm looking at internalProjection.json file @ https://github.com/usnistgov/ACVP-Server/blob/d98cad66639bf9d0822129c4bcae7a169fcf9ca6/gen-val/json-files/ML-KEM-encapDecap-FIPS203/internalProjection.json, where in "tgID-{4,5,6}" tests, it doesn't have any "testPassed" field. It's present in other "VAL" tests, which is really helpful as I'm trying to parse this JSON file into another plaintext format.

Would not it make sense to add a "testPassed" field for those three categories of tests? Or am I missing some other way of parsing these files?

To give some more context, I'm using https://github.com/itzmeanjan/ml-kem/blob/43c7e02b4f652d2e89af5fcf525322b5578d0071/kats/scripts/sync_acvp_kats.sh sort of script to parse to desired format.

Kind regards,

Anjan

[Anjan Roy]

Dear NIST,

Just wondering if you got a chance to look at this.

Kind regards,

Anjan

[Jacob Alperin-Sheriff]

There is an ongoing US government shutdown, man 

-Jacob Alperin-Sheriff

(609) 240-9132

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[Anjan Roy]

Indeed. How did I completely forget about it.

Anjan Roy

[Ben Livelsberger]

Hi Anjan,

One small note that there is more than one group at NIST involved with PQC. The CT Group develops algorithm standards. The Cryptographic Algorithm Validation Program (CAVP) is generally responsible for creating KATs and for writing conformance tests for those algorithm standards. 

CAVP generally does not follow topics on pqc-...@list.nist.gov closely, whereas the CT Group does. But if you raise a CAVP-related topic on this forum, I'd expect the CT Group would forward that topic onto CAVP. As it happens, the CT Group is shutdown and not working right now, but the CAVP team is working full-time. 

If you experience any issues with content on https://github.com/usnistgov/ACVP-Server, please open an issue to let CAVP know about it directly.

I'll forward this conversation to Chris Celi. Chris wrote the ML-KEM testing and will be able to answer your question. You'll hear back from us shortly.

Cheers!

Ben

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[Celi, Christopher T. (Fed)]

Hi Anjan,

You’re right, I missed adding the testPassed flag for the decapsulation tests here. It’s easy to piece together because it is just testPassed = (reason == “valid decapsulation”). I’ve fixed it internally and will appear in a future update. 

As Ben mentioned, CAVP is working, but given the volume here we don’t monitor this forum too closely. Usually our colleagues in the CT group pass things along to us, but none of them are working now. Reaching out to ca...@nist.gov is preferred, but we’ll try to monitor things here better during the shutdown. 

Thanks,

Chris Celi

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[Anjan Roy]

Perfect. Thank you very much to both of you, Ben and Chris.

Regards, 

Anjan

Anjan Roy

Software Engineer, India