Received April 17, 2002 From: Stephen Thomas This message is to advise the IESG that Wave7 Optics believes it has patent(s) and/or pending application(s) that relate to the technologies described in "The W7 Stream Cipher Algorithm," by S. Thomas, D. Anthony, T. Berson, and G. Gong. Wave7 Optics affirms that it is prepared to grant a license to technology necessary to implement the specification on reasonable, non-discriminatory terms and conditions, provided a reciprocal license is granted to Wave7 Optics and other parties under any patents or pending applications that the license applicant has to any technology also essential for implementation of the specification. Stephen Thomas, Chief Architect Wave7 Optics +1 678 339 1040 www.wave7optics.com