| B. Donovan, P. Norris, and G. Lowe. Analyzing Library of Security Protocols using Casper and FDR. In Proc. of the Workshop on Formal Methods and Security Protocols, 1999. |
....veri cation. Allowing an unbounded number of concurrent protocol executions makes the number of reachable states unbounded, so automated veri cation using state space exploration is not directly applicable. The case studies in [MCF87, Ros95, HTWW96, DK97, LR97, MMS97, MCJ97, MSS98, Bol98, DNL99] show that state space exploration of authentication protocols and similar cryptographic protocols is feasible when small upper bounds are imposed on the size of messages and the number of protocol executions. However, in most of those case studies, the bounds were not rigorously justi ed, so the ....
Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using Casper and FDR. In Proc.
....that many cryptographic protocols considered secure for years, have been successively proved to be easily breakable. Many researchers have dedicated their efforts to propose new formal frameworks in which security properties of cryptographic protocols can be studied and analyzed (see for example [20, 26, 23, 27, 28, 11, 16]) Within the model checking approaches [7] we remind the studies, oriented to define an effective theoretical framework in [18, 15, 14] and the recent BRUTUS model checker [19] This paper focuses on spi calculus [4] a process algebra derived from the calculus [21, 22] with operators to ....
B. Donovan, P. Norris, and G. Lowe. Analyzing Library of Security Protocols using Casper and FDR. In Proc. of the Workshop on Formal Methods and Security Protocols, 1999.
....nonce) 7 A 4 5 B : O NB QX KB This example is interesting because it exhibits a type dependent flaw. This kind of flaws is normally not detected using traditional finite state techniques, unless the specification is tailored towards finding specific, hence, a priori known bugs (see, e.g. [6]) We analyze two parallel runs of the protocol: A acts as responder and as initiator, respectively, while B acts only as responder. The interaction of S with A and B can be interleaved. This version of the protocol can be specified in STA by modifying the scripts for the previous example. e.g. ....
B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using Casper and FDR. In Proc. of Workshop on Formal Methods and Security Protocols, Trento, 1999.
....executed corresponding other actions (e.g. a payment gateway approves a charge to customer C s account only if customer C previously authorized that charge) Allowing an unbounded number of concurrent protocol instances makes the number of reachable states unbounded. The case studies in, e.g. [13, 6, 19, 10, 17] show that statespace exploration of security protocols is feasible when small upper bounds are imposed on the size of messages and the number of protocol instances. In most of those case studies, the bounds are not rigorously justified, so the results do not prove correctness of the protocols. ....
B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using Casper and FDR. In Proc.
....approves a charge to customer C s account only if customer C previously authorized that charge) Allowing an unbounded number of concurrent protocol instances makes the number of reachable states unbounded. The case studies in, e.g. MCF87, Ros95, HTWW96, DK97, LR97, MMS97, MCJ97, MSS98, Bol98, DNL99, MM99] show that state space exploration of security protocols is feasible when small upper bounds are imposed on the size of messages and the number of protocol instances. In most of those case studies, the bounds are not rigorously justi ed, so the results do not prove correctness of the ....
Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using Casper and FDR. In Proc.
....to the importance of rigorous veri cation. Allowing an unbounded number of concurrent protocol instances makes the number of reachable states unbounded, so state space exploration is not directly applicable. The case studies in [MCF87, Ros95, HTWW96, DK97, LR97, MMS97, MCJ97, MSS98, Bol98, DNL99] show that state space exploration of authentication protocols and similar cryptographic protocols is feasible when small upper bounds are imposed on the size of messages and the number of protocol instances. However, in most of those case studies, the bounds were not rigorously justi ed, so the ....
Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using Casper and FDR. In Workshop on Formal Methods and Security Protocols, July 1999.
....that charge) Allowing an unbounded number of concurrent protocol instances makes the number of reachable states unbounded, so automated verification using state space exploration is not directly applicable. The case studies in [MCF87, Ros95, HTWW96, DK97, LR97, MMS97, MCJ97, MSS98, Bol98, DNL99] show that state space exploration of security protocols is feasible when small upper bounds are imposed on the size of messages and the number of protocol instances. However, in most of those case studies, the bounds were not rigorously justified, so the results do not prove correctness of the ....
Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using Casper and FDR. In Workshop on Formal Methods and Security Protocols, July 1999.
....of the security properties are more complete than the ones in [SM95] For example, we distinguish between weak key freshness and strong key freshness, while [SM95] does not consider the strong key freshness. In fact, the Yahalom protocol [CJ97] has been proven to have key freshness property by [DNL99]. But actually Athena proved that Yahalom only has the weak key freshness, not the strong key freshness property. 5.3.1 Specification of security properties 1. Authentication between the initiator and the responder If A completes the protocol run with B in a session with N a and N b , then there ....
Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using casper and fdr. In Workshop on Formal Methods and Security Protocols, 1999.
....of ONR under Grant N00014 99 1 0358 Email: stoller cs.indiana.edu Web: http: www.cs.indiana.edu stoller Allowing an unbounded number of concurrent protocol instances makes the number of reachable states unbounded, so state space exploration is not directly applicable. The case studies in [MCF87, Ros95, HTWW96, DK97, LR97, MMS97, MCJ97, MSS98, Bol98, DNL99] show that state space exploration of authentication protocols and similar cryptographic protocols is feasible when small upper bounds are imposed on the size of messages and the number of protocol instances. However, in most of those case studies, the bounds were not rigorously justified, so the ....
Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using Casper and FDR. In Workshop on Formal Methods and Security Protocols, July 1999.
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Ben Donovan, Paul Norris, and Gavin Lowe. Analyzing a library of security protocols using Casper and FDR. In Proceedings of the 1999.
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B. Donovan, P. Norris, and G. Lowe. Analyzing Library of Security Protocols using Casper and FDR. In Proc. of the Workshop on Formal Methods and Security Protocols, 1999.
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B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using Casper and FDR, 1999.
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B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using Casper and FDR. In Proc. FLOC'99 Workshop on Formal Methods and Security Protocols (FMSP'99), 1999.
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B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using casper and FDR. In Proceedings of the Workshop on Formal Methods and Security Protocols, 1999. http://www.mcs.le.ac.uk/~glowe/Security/Papers/ prots.ps.
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B. DONOVAN, P. NORRIS, AND G. LOWE, Analyzing a library of security protocols using Casper and FDR, in Proceedings of the 1999.
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B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using Casper and FDR, 1999.
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B. Donovan, P. Norris, and G. Lowe. Analyzing a library of security protocols using Casper and FDR, 1999.
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