scyther/protocols/misc/tls/tls-HSDDM05-fix.spdl
Cas Cremers 727e813c77 Fixed obsolete notation in protocol specification files.
Not everything is fixed yet.
However, we fixed:
- 'const' -> 'fresh'
- Removed lines specifying 'runs'
- Removed some specifications of compromised Eve and its long-term keys
  being compromised.
2012-06-12 23:12:14 +02:00

74 lines
2.2 KiB
Plaintext

/*
* This is a model of a version of the TLS protocol as modeled by
* He,Sundararajan,Datta,Derek and Mitchell in the paper: "A modular
* correctness proof of IEEE 802.11i and TLS".
*
* This is the fixed version, with quite some differences:
*
* 1) new definition of handShake1 (including preceding tuples)
* 2) new definition of both handshakes (now hashed)
* 3) changed order in msg3 so msecret is part of handShake1
*
* (These are the suggestions made by Cas to Anupam Datta)
*/
/* below is just Scyther input and no further macro definitions */
usertype Params, String;
const pk,hash: Function;
secret sk,unhash: Function;
inversekeys(pk,sk);
inversekeys(hash,unhash);
const clientstring,serverstring: String;
const Alice, Bob, Eve: Agent;
const Terence: Agent;
protocol tls-HSDDM05(X,Y)
{
role X
{
fresh Nx: Nonce;
fresh msecret: Nonce;
fresh pa: Params;
var Ny: Nonce;
var pb: Params;
send_1( X,Y, X,Nx,pa );
read_2( Y,X, Ny,pb,{ Y,pk(Y) }sk(Terence) );
send_3( X,Y, { X,pk(X) }sk(Terence),{msecret}pk(Y),{hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y))}sk(X),hash(msecret,hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y)),clientstring) );
read_4( Y,X, hash(msecret,hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{ X,pk(X) }sk(Terence),{msecret}pk(Y),{hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y))}sk(X),hash(msecret,hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y)),clientstring)),serverstring) );
claim_X1( X, Secret, msecret );
}
role Y
{
var Nx: Nonce;
var msecret: Nonce;
var pa: Params;
fresh Ny: Nonce;
fresh pb: Params;
read_1( X,Y, X,Nx,pa );
send_2( Y,X, Ny,pb,{ Y,pk(Y) }sk(Terence) );
read_3( X,Y, { X,pk(X) }sk(Terence),{msecret}pk(Y),{hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y))}sk(X),hash(msecret,hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y)),clientstring) );
send_4( Y,X, hash(msecret,hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{ X,pk(X) }sk(Terence),{msecret}pk(Y),{hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y))}sk(X),hash(msecret,hash(X,Nx,pa,Ny,pb,{ Y,pk(Y) }sk(Terence),{msecret}pk(Y)),clientstring)),serverstring) );
claim_Y1( Y, Secret, msecret );
}
}