scyther/testing/nst2.spdl

76 lines
1.6 KiB
Plaintext

# Neumann Stubblebine
#
# Modelled after the description in the SPORE library
# http://www.lsv.ens-cachan.fr/spore/neumannStubblebine.html
#
# Note:
# In SPORE this protocol is not described correctly, there are in fact 2
# different protocols (the key establishment protocol and the repeated
# authentication protocol)
usertype Server, SessionKey, TimeStamp, TicketKey;
usertype ExpiredTimeStamp;
secret k: Function;
const Fresh: Function;
const Compromised: Function;
const kee: SessionKey;
protocol neustub^Repeat(I,R,S)
{
fresh Kir: SessionKey;
role I
{
fresh Mi: Nonce;
var Mr: Nonce;
var Kir: SessionKey;
var Tr: TimeStamp;
var Tb: Ticket;
fresh g: Ticket;
var h: Ticket;
recv_!chain(R,I, { R,Tr,Kir }k(I,S), Tb);
send_5(I,R,Mi,{I,Kir,Tr}k(R,S),g);
recv_6(R,I,{Mi,Mr,g,h}Kir);
send_7(I,R,{I,Mr}Kir);
claim_I0(I,Secret, g);
claim_I5(I,Secret, h);
claim_I1(I,Secret, Kir);
claim_I2(I,Niagree);
claim_I3(I,Nisynch);
claim_I4(I,Empty,(Fresh,Kir));
}
role R
{
fresh Mr: Nonce;
var Tr: TimeStamp;
var Kir: SessionKey;
var Mi: Nonce;
var g: Ticket;
fresh h: Ticket;
recv_5(I,R,Mi,{I,Kir,Tr}k(R,S),g);
send_6(R,I,{Mi,Mr,g,h}Kir);
recv_7(I,R,{I,Mr}Kir);
claim_R1(R,Secret, Kir);
claim_R5(R,Secret, g);
claim_R6(R,Secret, h);
claim_R2(R,Niagree);
claim_R3(R,Nisynch);
claim_R4(R,Empty,(Fresh,Kir));
}
role S
{
}
}