66 lines
1.2 KiB
Plaintext
66 lines
1.2 KiB
Plaintext
/*
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* This is a model of a version of the TLS protocol as modeled in
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* Boyd, Mathuria "Protocols for Authentication and key establishment"
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*
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* It's a very simplified form.
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*/
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define(`msg1',`na')
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define(`msg2',`nb')
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define(`kab',`hash(pmk,na,nb)')
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define(`msg3a',`{ pmk }pk(B)')
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define(`M1',`hash(msg1,msg2,msg3a)')
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define(`msg3b',`{ M1 }sk(A)')
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define(`M2',`hash(msg1,msg2,msg3a,msg3b)')
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define(`msg3c',`{ M2 }kab')
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define(`msg3',`msg3a,msg3b,msg3c')
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define(`M3',`msg1,msg2,msg3')
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define(`msg4',`{ M3 }kab')
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/* below is just Scyther input and no further macro definitions */
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const pk,hash: Function;
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secret sk,unhash: Function;
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inversekeys(pk,sk);
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inversekeys(hash,unhash);
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const Alice, Bob, Eve: Agent;
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const Terence: Agent;
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protocol tls-bm-1(A,B)
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{
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role A
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{
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const na: Nonce;
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const pmk: Nonce;
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var nb: Nonce;
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send_1( A,B, msg1 );
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read_2( B,A, msg2 );
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send_3( A,B, msg3 );
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read_4( B,A, msg4 );
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claim_A1( A, Secret, kab );
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claim_A2( A, Nisynch );
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}
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role B
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{
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var na: Nonce;
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var pmk: Nonce;
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const nb: Nonce;
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read_1( A,B, msg1 );
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send_2( B,A, msg2 );
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read_3( A,B, msg3 );
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send_4( B,A, msg4 );
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claim_B1( B, Secret, kab );
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claim_B2( B, Nisynch );
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}
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}
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untrusted Eve;
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compromised sk(Eve);
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