History for IPR disclosure
RSA's unofficial statement pertaining to PKIX

legacy_title_1: Also see RFC1170
From: http://www.ietf.org/rfc/rfc1170.txt







Network Working Group                                        R. Fougner
Request for Comments: 1170                          Public Key Partners
                                                            January 1991


                  Public Key Standards and Licenses

Status of this Memo

  This RFC is a public statement by Public Key Partners regarding
  Public Key Standards and Licenses.  This memo is for informational
  use only, and does not constitute an Internet standard.  Distribution
  of this memo is unlimited.

Public Key Standards and Licenses

  The Massachusetts Institute of Technology and the Board of Trustees
  of the Leland Stanford Junior University have recently granted Public
  Key Partners exclusive sublicensing rights to the following patents
  registered in the United States, and all of their corresponding
  foreign patents:

      Cryptographic Apparatus and Method
      ("Diffie-Hellman")............................... No. 4,200,770

      Public Key Cryptographic Apparatus
      and Method ("Hellman-Merkle").................... No. 4,218,582

      Cryptographic Communications System and
      Method ("RSA")................................... No. 4,405,829

      Exponential Cryptographic Apparatus
      and Method ("Hellman-Pohlig").................... No. 4,424,414

  These patents cover all known methods of practicing the art of Public
  Key, including the variations collectively known as El Gamal.

  Due to the broad acceptance of RSA digital signatures throughout the
  international community, Public Key Partners strongly endorses its
  incorporations in a digital signature standard.  We assure the
  interested parties that Public Key Partners will comply with all of
  the policies of ANSI and the IEEE concerning the availability of
  licenses to practice this art.  Specifically, in support of any RSA
  signature standard which may be adopted, Public Key Partners hereby
  gives its assurance that licenses to practice RSA signatures will be
  available under reasonable terms and conditions on a non-
  discriminatory basis.




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RFC 1170          Public Key Standards and Licenses        January 1991


  We take this opportunity to thank all of those concerned for their
  collective efforts in making this technology readily available for
  commercial implementation.

                                          Public Key Partners

                                          By:  Robert B. Fougner
                                                Director of Licensing

Security Considerations

  This memo discusses fair access to the use of public key technology
  to implement security.

Author's Address

  Robert B. Fougner
  Director of Licensing
  Public Key Partners
  130 B Kifer Court
  Sunnyvale, CA 94086

  Phone:  (408) 735-6779




























Fougner                                                        [Page 2]


From: http://www.ietf.org/ietf-ftp/IPR//PKIX-RSA

The following was reported by a member of the Public-Key Infrastructure
(X.509) Working Group. Note that no official notification as been
received by the IETF Secretariat

RSA Data Security, Inc. has provided the following statement with
regard to this patent:

It is our understanding that the proposed PKIX Certificate Profile
(PKIX-1) standard currently under review contemplates the use of
U.S Patent 4,405,829 entitled "Cryptographic Communication System
and Method" (the "RSA patent") which patent is controlled by RSA.

It is RSA's business practice to make licenses to its patents
available on reasonable and nondiscriminatory terms. Accordingly,
if the foregoing identified IETF standard is adopted, RSA is willing,
upon request, to grant non-exclusive licenses to such patent
on reasonable and non-discriminatory terms and conditions to those
who respect RSA's intellectual property rights and subject to
RSA's then current royalty rate for the patent licensed. The royalty
rate for the RSA patent is presently set at 2% of the
licensee's selling price for each product covered by the patent.
Any requests for license information may be directed to:

        Director of Licensing
        RSA Data Security, Inc.
        100 Marine Parkway, Suite 500
        Redwood City, CA 94065

A license under RSA's patent(s) does not include any rights to
know-how or other technical information or license under other
intellectual property rights.  Such license does not extend to any
activities which constitute infringement or inducement thereto. A
licensee shall make his own determination as to whether a license
is necessary under patents of others.