Reintroduced ksl protocol description.

This commit is contained in:
Cas Cremers 2010-12-12 22:13:18 +01:00
parent 2ec70106ba
commit dd49526e02

View File

@ -0,0 +1,80 @@
# KSL
#
# Modelled after the description in the SPORE library
# http://www.lsv.ens-cachan.fr/spore/ksl.html
#
#
usertype Server, SessionKey, TimeStamp, TicketKey;
usertype ExpiredTimeStamp;
const a, b, e: Agent;
const s: Server;
const Fresh: Function;
const Compromised: Function;
untrusted e;
compromised k(e,s);
protocol ksl(I,R,S)
{
role I
{
const Ni, Mi: Nonce;
var Nc, Mr: Nonce;
var T: Ticket;
var Kir: SessionKey;
send_1(I,R, Ni, I);
read_4(R,I, { Ni,R,Kir }k(I,S), T, Nc, {Ni}Kir );
send_5(I,R, { Nc }Kir );
send_6(I,R, Mi,T );
read_7(R,I, Mr,{Mi}Kir );
send_8(I,R, {Mr}Kir );
claim_I1(I,Secret, Kir);
claim_I2(I,Niagree);
claim_I3(I,Nisynch);
claim_I4(I,Empty, (Fresh, Kir));
}
role R
{
var Ni,Mi: Nonce;
const Nr,Nc,Mr: Nonce;
var Kir: SessionKey;
const Kbb: TicketKey;
const Tr: TimeStamp;
var T: Ticket;
read_1(I,R, Ni, I);
send_2(R,S, Ni, I, Nr, R );
read_3(S,R, { Nr, I, Kir }k(R,S), T );
send_4(R,I, T, { Tr, I, Kir }Kbb, Nc, {Ni}Kir );
read_5(I,R, { Nc }Kir );
read_6(I,R, Mi,{ Tr, I, Kir }Kbb );
send_7(R,I, Mr,{Mi}Kir );
read_8(I,R, {Mr}Kir );
claim_R1(R,Secret, Kir);
claim_R2(R,Niagree);
claim_R3(R,Nisynch);
claim_R4(R,Empty,(Fresh,Kir));
}
role S
{
var Ni, Nr: Nonce;
const Kir: SessionKey;
read_2(R,S, Ni, I, Nr, R );
send_3(S,R, { Nr, I, Kir }k(R,S), { Ni,R,Kir }k(I,S) );
}
}