Ex parte KESHAV - Page 2




          Appeal No. 1998-1926                                                        
          Application 08/333,829                                                      


               1.  A method for authenticating a unique article by                    
          creating a unique data signature for the unique article, said               
          method comprising the steps of:                                             
               receiving a data set including at least one data                       
          subset wherein a first data subset is representative of a                   
          unique identification number fixed to a surface of a                        
          substantially unforgeable document;                                         
               encrypting said input data set to generate a unique                    
          data signature and fixing said unique data signature to at                  
          least one of said unique article and a verification                         
          certificate, to thereby authenticate said unique article; and               
               utilizing the substantially unforgeable document and                   
          said unique data signature together for subsequent proof of                 
          authenticity of the unique article.                                         
          The examiner relies on the following references:                            
          Stambler                      5,267,314          Nov. 30, 1993              
          Haber et al. (Haber)          5,373,561          Dec. 13, 1994              
          (filed Dec. 21,                                                             
          1992)                                                                       
          Schneier, “Untangling Public-Key Cryptography,” Dr. Dobb’s                  
          Journal, Vol. 17, Issue 5, May 1992, pages 16-28.                           
          The following rejections are on appeal before us:                           
          1. Claims 1-3, 5-7, 13, 14, 16 and 17 stand rejected                        
          under 35 U.S.C. § 102 (a) and (e) as being anticipated by the               
          disclosure of Stambler.                                                     
          2. Claims 4, 8-11 and 15 stand rejected under 35                            
          U.S.C.                                                                      
          § 103 as being unpatentable over the teachings of Stambler in               
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