Patent ID: 6249871
Filing Date: 2001-06-19
Classification: G06F,H04L

Abstract:
A method for using a second resource to store a data element from a first resource, comprising the steps of:signing a data element X.sub.N+1 and a signature S[N]=S(X.sub.N,S(X.sub.N-1, S(X.sub.N-2,S( . . . S(X.sub.1,S(initial)) . . . ) at a first resource to obtain a signature S[X.sub.N+1,S[N]], where N is an integer and S(initial) is any arbitrary initial value;providing the data element X.sub.N+1 and the signature S[N] from the first resource to the second resource; andstoring the signature S[X.sub.N+1,S[N]] at the first resource.