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IPR Details
Nokia of America Corp's Statement about IPR related to draft-irtf-cfrg-spake2

Submitted: February 9, 2020 under the rules in RFC 8179.

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

I. Patent Holder/Applicant ("Patent Holder")

Holder legal name Nokia of America Corp

II. Patent Holder's Contact for License Application

Holder contact name Nokia of America Corp
Holder contact email
Holder contact info

III. Contact Information for the IETF Participant Whose Personal Belief Triggered this Disclosure

Name Björn Haase
Other info

IV. IETF Document or Other Contribution to Which this IPR Disclosure Relates

draft-irtf-cfrg-spake2 ("SPAKE2, a Password-Authenticated Key Exchange")
No revisions for this Internet-Draft were specified in this disclosure. The Internet-Draft's revision was 09 at the time this disclosure was posted. Contact the discloser or patent holder if there are questions about which revisions this disclosure pertains to.

V. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 8179

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

Date: 2006-05-16
Notes: Duration exceptionally extended to a period of 23 (!) years

Claim 1:
1. A method for communication via a data network, between two parties that share a password, using a Diffie-Hellman type key exchange on a particular group to generate a shared secret g^(xy), where g is the group generator known to both parties and x is an index known to one party and y is an index known to the other party, said group having a group operation and an inverse group operation, said method comprising the steps of:
one party generating a parameter m by performing the group operation on g^x and a function of at least said password, and transmitting m to the other party, whereby the other party may perform the inverse group operation on m and said function of at least said password to extract g^x and further calculate said shared secret g^(xy).

SPAKE2 as in the draft calculates M^w which is a function of the password and point addition and substraction might be classified as group operation and inverse group operation.
Title: Secure mutual network authentication and key exchange protocol
Number: US7047408
Inventor: V.Boyko, E. Grosse, P. MacKenzie, S. Patel

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

VI. Licensing Declaration

The Patent Holder states that its position with respect to licensing any patent claims contained in the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):

Licensing See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information

This would have to be discussed with the patent holder.

Note: The individual submitting this template represents and warrants that he or she is authorized by the Patent Holder to agree to the above-selected licensing declaration.

VII. Contact Information of Submitter of this Form

Submitter name Björn Haase
Submitter email

Only those sections of the relevant entry form where the submitter provided information are displayed above.