Origin of FIPS 186-4 Elliptic Curves over Prime Field SEED Parameters (National Security Agency)

Steve Weis filed this request with the National Security Agency of the United States of America.
Tracking #


Multi Request Origin of FIPS 186-4 Elliptic Curves over Prime Field SEED Parameters
Due Sept. 6, 2019
Est. Completion None
Awaiting Response


From: Steve Weis

To Whom It May Concern:

Pursuant to the Freedom of Information Act, I hereby request the following records:

Any documents related to the choice of elliptic curves over prime fields for ECC key agreement that first appeared in FIPS 186-4 Appendix D, sections D.1.2.1-D.1.2.5 (https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-4.pdf). For example, any information to the choice of D.1.2.3: P-256: SEED = c49d3608 86e70493 6a6678e1 139d26b7 819f7e90.

This document has been superseded by NIST 800-56A (https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-56Ar3.pdf).

Please return any email, memorandum, presentations, reports, articles, research papers, justifying the choice of initialization parameters for the following standards:
P-224 (also known as secp224r1), P-256 (secp256r1), P-384 (secp384r1), P-521 (secp521r1)

Dr. Jerry (or Gerald) Solinas from the NSA may have been involved in the parameter selection.

The requested documents will be made available to the general public, and this request is not being made for commercial purposes.

In the event that there are fees, I would be grateful if you would inform me of the total charges in advance of fulfilling my request. I would prefer the request filled electronically, by e-mail attachment if available or CD-ROM if not.

Thank you in advance for your anticipated cooperation in this matter. I look forward to receiving your response to this request within 20 business days, as the statute requires.


Steve Weis

From: National Security Agency

An acknowledgement letter, stating the request is being processed.