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IPR Details
Simon Josefsson's Statement about IPR related to RFC 3447 belonging to The University of California

Submitted: January 29, 2010 under the rules in RFC 3979 as updated by RFC 4879.

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

Holder legal name The University of California

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

Name Simon Josefsson
Other info

T: +46-708-458602

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

RFC3447 ("Public-Key Cryptography Standards (PKCS) #1: RSA Cryptography Specifications Version 2.1")

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 3979 as updated by RFC 4879

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

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

Date: Unknown
Country: Unknown

Notes: There is an appendix D in RFC 3447 itself which says:

Appendix D. Intellectual Property Considerations

The RSA public-key cryptosystem is described in U.S. Patent
4,405,829, which expired on September 20, 2000. RSA Security Inc.
makes no other patent claims on the constructions described in this
document, although specific underlying techniques may be covered.

Multi-prime RSA is described in U.S. Patent 5,848,159.

The University of California has indicated that it has a patent
pending on the PSS signature scheme [5]. It has also provided a
letter to the IEEE P1363 working group stating that if the PSS
signature scheme is included in an IEEE standard, "the University of
California will, when that standard is adopted, FREELY license any
conforming implementation of PSS as a technique for achieving a
digital signature with appendix" [23]. The PSS signature scheme is
specified in the IEEE P1363a draft [27], which was in ballot
resolution when this document was published.

License to copy this document is granted provided that it is
identified as "RSA Security Inc. Public-Key Cryptography Standards
(PKCS)" in all material mentioning or referencing this document.

RSA Security Inc. makes no other representations regarding
intellectual property claims by other parties. Such determination is
the responsibility of the user.

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

V. Contact Information of Submitter of this Form

Submitter name
Submitter email

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