46 lines
775 B
Plaintext
46 lines
775 B
Plaintext
# Woo and Lam Pi
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#
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# Modelled after the description in the SPORE library
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# http://www.lsv.ens-cachan.fr/spore/wooLamPi.html
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#
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# Note:
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# Scyther finds an attack that appears to be legit, but is not present in
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# SPORE.
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#
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protocol woolamPi(I,R,S)
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{
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role I
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{
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var Nr: Nonce;
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send_1(I,R, I);
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recv_2(R,I, Nr);
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send_3(I,R, {Nr}k(I,S));
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}
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role R
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{
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fresh Nr: Nonce;
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var T: Ticket;
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recv_1(I,R, I);
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send_2(R,I, Nr);
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recv_3(I,R, T);
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send_4(R,S, {I, T}k(R,S));
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recv_5(S,R, {Nr}k(R,S));
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claim_R1(R,Nisynch);
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}
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role S
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{
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var Nr: Nonce;
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recv_4(R,S, {I,{Nr}k(I,S)}k(R,S));
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send_5(S,R, {Nr}k(R,S));
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}
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}
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