doc.: IEEE /447r0-I Submission July 2002 Thomas Studwell, IBMSlide 1 IBMs AES-OCB Licensing Position Thomas Studwell Senior Technical Staff Member IBM Personal Computing Devices RTP, NC

doc.: IEEE /447r0-I Submission July 2002 Thomas Studwell, IBMSlide 2 Perspective AES-OCB has Intellectual Property (IP) claimed by three parties Phillip Rogaway Virgil Gligor IBM (J. Rao) All parties have indicated acceptance of standard IEEE guidelines for fair, reasonable, and non- discriminatory licensing terms –IBM sent letter to IEEE on Jan. 23, 2002

doc.: IEEE /447r0-I Submission July 2002 Thomas Studwell, IBMSlide 3 IBMs Licensing Practice IBM has participated and provided IP to many of todays standards IBM protects its ownership of IP through licensing In the absence of an IBM advocate IBM initially provides a standard set of terms for IP licensing If an IBM product group sees value in promoting the technology then this group can encourage more favorable terms

doc.: IEEE /447r0-I Submission July 2002 Thomas Studwell, IBMSlide 4 Advocate for AES-OCB IBM PCD sees the OCB implementation as beneficial to the industry and our own products and is willing to work on behalf of licensee applicants –We (PCD) do not participate in negotiation of terms – this is the responsibility of IBMs IP&Licensing group –We will provide introduction and support for those interested in licensing the technology A significant number of companies are already covered under existing cross-licensing agreements –We have encouraged IP&L to support terms similar to those published elsewhere and have received favorable response Suggested fixed, one-time fee for license restricted to this application –Interested parties may contact: Thomas Studwell