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- Finished the protocol.

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ccremers 2004-08-23 11:59:42 +00:00
parent 0fc008fe33
commit dfdea5b0bf
1 changed files with 33 additions and 4 deletions
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37
spdl/woolam-cmv.spdl
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@ -5,6 +5,8 @@ const Alice, Bob, Charlie, Eve: Agent;
const Simon: Server; const Simon: Server;
/* give the intruder something to work with */ /* give the intruder something to work with */
// Scyther finds an attack using basic type flaws
const ne: Nonce; const ne: Nonce;
const ke: SessionKey; const ke: SessionKey;
untrusted Eve; untrusted Eve;
@ -14,22 +16,49 @@ const authToken: Token;
protocol woolamcmv(A,B,S) protocol woolamcmv(A,B,S)
{ {
role A
{
const Na: Nonce;
var Nb: Nonce;
var Kab: SessionKey;
var t1,t2;
send_1(A,B, A,Na);
read_2(B,A, B,Nb);
send_3(A,B, { A,B, Na,Nb }k(A,S) );
read_6(B,A, { B,Na,Nb,Kab }k(A,S), { Na,Nb }Kab );
send_7(A,B, { Nb }Kab );
claim_8(B,Secret, Kab);
}
role B role B
{ {
var Na: Nonce; var Na: Nonce;
const Nb: Nonce; const Nb: Nonce;
var Kab: SessionKey; var Kab: SessionKey;
var t1,t2: Ticket; var t1,t2;
read_1(A,B, A,Na); read_1(A,B, A,Na);
send_2(B,A, B,Nb); send_2(B,A, B,Nb);
read_3(A,B, t1 ); read_3(A,B, t1 );
send_4(B,S, t1, { (A,(B,(Na,Nb))) }k(B,S) ); send_4(B,S, t1, { A,B,Na,Nb }k(B,S) );
read_5(S,B, t2, { (A,(Na,(Nb,Kab))) }k(B,S) ); read_5(S,B, t2, { A,Na,Nb,Kab }k(B,S) );
send_6(B,A, t2, { Na,Nb }Kab ); send_6(B,A, t2, { Na,Nb }Kab );
read_7(A,B, { Nb }Kab ); read_7(A,B, { Nb }Kab );
claim(B,Secret,Kab,Nb,authToken); claim_9(B,Secret, Kab);
}
role S
{
var Na, Nb: Nonce;
const Kab: SessionKey;
read_4(B,S, { A,B, Na,Nb }k(A,S), { A,B,Na,Nb }k(B,S) );
send_5(S,B, { B,Na,Nb,Kab }k(A,S), { A,Na,Nb,Kab }k(B,S) );
claim_10(B,Secret, Kab);
} }
} }