IPR Details
RSA Security's statement on public-key cryptosystem patent

• Disclosure
• History

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	RSA Security Inc.

II. Patent Holder's Contact for License Application

Holder contact name	Margaret K. Seif
Holder contact email
Holder contact info	Vice President and General Counsel

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

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 2026

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

Patent, Serial, Publication, Registration, or Application/File number(s)	4,405,829 Country: USA

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending	No

V. 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	RSA Security Inc. recognizes that the RSA public-key cryptosystem covered by U.S. Patent #4,405,829, which is owned by Massachusetts Institute of Technology and licensed exclusively to RSA Security, is cited and employed within a large number of standards documents and drafts (such as ANSI X9.31 and X9.44, FIPS 186-2, IEEE 1363, IETF S/MIME, IPsec and TLS, ISO/IEC 9796-2 and 14888-3, and WAP WTLS). The patent was due to expire on September 20, 2000. On September 6, 2000, RSA Security announced that, effective immediately, it would not enforce the patent against third parties who desire to create, sell or offer to sell in the U.S. products that incorporate their own implementation of the RSA algorithm. RSA Security does not claim ownership of any additional intellectual property needed to implement and practice the RSA public-key cryptosystem contained within U.S. Patent #4,405,829. Thus, third parties may now sell or offer to sell in the U.S. implementations of the RSA public-key cryptosystem without a license from RSA Security. However, RSA Security does not represent or warrant that implementations of the algorithm will not infringe the intellectual property rights of any third party. RSA Security does maintain copyright and other intellectual property rights in RSA's own implementations of the RSA public-key cryptosystem, which are incorporated into the RSA BSAFE(r) toolkit and other RSA Security products and made available to other organizations under license. This licensing practice is unaffected by the expiration of U.S. Patent #4,405,829.

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.

VI. Contact Information of Submitter of this Form

Submitter name
Submitter email

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