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Ninth IEEE Computer Security Foundations Workshop
Narrowing terminates for encryption
Dromquinna Manor, Kenmare, County Kerry, Ireland
March 10-March 12
ISBN: 0-8186-7522-5
J.K. Millen, Mitre Corp., Bedford, MA, USA
Hai-Ping Ko, Mitre Corp., Bedford, MA, USA
Many techniques for protocol analysis use term replacement rules to express the reduction properties of symbolic encryption operations. Some approaches must solve equations in those operators, using sequences of narrowing steps. It is shown that every infinite sequence of narrowing steps for popular abstract encryption operators has a loop, and hence there is a terminating algorithm to solve such equations by searching all sequences of narrowing steps.
Index Terms:
cryptography; access protocols; encryption; protocol analysis; term replacement rules; reduction properties; symbolic encryption operations; narrowing steps; infinite sequence; popular abstract encryption operators; terminating algorithm
Citation:
J.K. Millen, Hai-Ping Ko, "Narrowing terminates for encryption," csfw, pp.39, Ninth IEEE Computer Security Foundations Workshop, 1996
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